cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ericaphis wakibae Hottes 1934
Creators: name: Stekolshchikov, Andrey V.
name: Khruleva, Olga A.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Aphidomorpha
Aphididae
Ericaphis
Ericaphis wakibae

description: Ericaphis wakibae (Hottes, 1934)
Material. 2 fund., No 10276, SSWBer, Dryas octopetala asiatica (Nakai) Nakai, 8.vii.2012, on flowering shoots near flowers; 1 apt., No. 10266, SSWBer, Polygonum tripterocarpum A. Gray ex Rothr. (?accidentally), 30.vii.2012, on leaf.
Comments. The single apterous viviparous female was collected from Polygonum tripterocarpum A. Gray ex Rothr. and than was brought to the laboratory and put in a cage with a set of plants consisting of Polygonum tripterocarpum, Vaccinium uliginosum L. and Dasiphora fruticosa (L.) Rydb. The aphid began to feed on V. uliginosum and bore 8 nymphs, but none of them grew to adulthood.
Distribution outside Chukotka AO. North America, introduced to the United Kingdom.
description: Published as part of Stekolshchikov, Andrey V. & Khruleva, Olga A., 2015, Contributions to the aphid fauna (Hemiptera, Aphidoidea) of Chukotka Autonomous Okrug with descriptions of five new species, pp. 1-44 in Zootaxa 4044 (1) on page 19, DOI: 10.11646/zootaxa.4044.1.1, http://zenodo.org/record/289996
Nasonovia (Aconitaphis) wahinkae subsp. robinsoni Richards 1958
Creators: name: Stekolshchikov, Andrey V.
name: Khruleva, Olga A.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Aphidomorpha
Aphididae
Nasonovia
Nasonovia wahinkae
Nasonovia (aconitaphis) wahinkae robinsoni (richards, 1958)

description: Nasonovia (Aconitaphis) wahinkae robinsoni (Richards, 1958)
Material. 69 apt., 10 al., 9 males and 16 ovip., No. 10260, SSWBer, Delphinium brachycentrum maydellianum (Trautv.) Jurtz., 20.vii.2012, on pedicles, flowers and lower surfaces of slightly swollen leaves.
Distribution outside Chukotka AO. Canada (Manitoba), USA (Alaska).
description: Published as part of Stekolshchikov, Andrey V. & Khruleva, Olga A., 2015, Contributions to the aphid fauna (Hemiptera, Aphidoidea) of Chukotka Autonomous Okrug with descriptions of five new species, pp. 1-44 in Zootaxa 4044 (1) on page 31, DOI: 10.11646/zootaxa.4044.1.1, http://zenodo.org/record/289996
Hippasa holmerae Thorell 1895
Creators: name: SANKARAN, PRADEEP M.
name: CALEB, JOHN T. D.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Hippasa
Hippasa holmerae

description: Hippasa holmerae Thorell, 1895
Figs 15, 38
Hippasa holmerae Thorell, 1895: 218 (♂ ♀). Gravely 1924: 595, fig. 1I (♀) (for complete list of references, see World Spider Catalog 2022).
Type material. Syntypes ♂ and ♀ from MYANMAR: Tharrawaddy, 21 September 1895, collector unknown, repository NHM (731-732), not examined. Illustrations based on the type of this species given in Tikader & Malhotra (1980: fig. 103–104) are diagnostic and can be used for comparative purpose.
Topotype material examined. MYANMAR: Tharrawaddy, date unknown, collector unknown: 1♂, 2 ♀♀ (NZC-ZSI 2393 /17).
Other material examined. CHINA: Yunnan: between Tengyuech and Nan Tien, 1909-1910, J.C. Brown leg.: 1 ♀ (NZC-ZSI 5166 /H2).
Diagnosis. Hippasa holmerae are most similar to H. lingxianensis as both share a tegular apophysis with straight anterior and mesal arms in ventral view, hook-shaped embolus, epigynal median plate with a scape and short spermathecal stalks, but males of the former can be separated from the latter by closely spaced anterior and mesal arms of tegular apophysis (vs. widely spaced in H. lingxianensis), and broad conductor (vs. narrow in H. lingxianensis and females by the scape without lobes (vs. bilobed in H. lingxianensis), and oval spermathecae (vs. spherical in H. lingxianensis, compare Wang et al. 2015: figs 3A, C–D, 4C, F–G with Wang et al. 2015: figs 5A, C–D, 6D, F–G).
Distribution. Bangladesh, China, Myanmar, Philippines, Singapore, Taiwan and India: Manipur, Uttarakhand, West Bengal (Thorell 1895; Gravely 1924; Li 1966; Yin & Wang 1980; Barrion 1981; Tikader & Malhotra 1980; Tikader & Biswas 1981; Hu 1984; Okuma et al. 1993; Barrion & Litsinger 1995; Biswas & Raychaudhuri 2007; Barrion et al. 2013; Wang et al. 2015; Wang et al. 2021) (Fig. 38).
Remarks. All the above-mentioned material is badly dried off. The specimens were compared with the type of H. holmerae and studied by Tikader & Malhotra (1980). In addition to these, the NZC-ZSI collection has one more glass bottle containing a lot of male and female specimens of unknown locality, with no additional collecting information, and all badly dried off. The specimen illustrated in Wang et al. (2015) and Wang et al. (2021) has short scape of the epigyne, which is very long in the topotype material examined here (compare Fig. 15A–B with Wang et al. 2015: fig. 4F–G; Wang et al. 2021: fig. 23G–H). The record of this species from Sri Lanka (Barrion & Litsinger 1995) is questionable as there is no mention of the whereabouts of the material from Sri Lanka in any of the available literature reference related to H. holmerae.
description: Published as part of SANKARAN, PRADEEP M. & CALEB, JOHN T. D., 2023, Notes on Indian wolf spiders: II. Genus Hippasa Simon, 1885 (Araneae: Lycosidae Hippasinae), pp. 101-152 in Zootaxa 5230 (2) on pages 121-122, DOI: 10.11646/zootaxa.5230.2.1, http://zenodo.org/record/7554943
Фенотипические и генетические особенности  высокопродуктивных коров бурой швицкой породы скота
Creators: name: Гонтов Михаил Елисеевич
name: Кольцов Дмитрий Николаевич
name: Русанова Светлана Алексеевна
name: Дмитриева Валентина Ивановна
name: Ермаков Михаил Андреевич
Publisher: name: Zenodo
Year: 2024

description: Прогресс породы обуславливают животные, проявившие выдающиеся показатели продуктивности, методы их получения  используют в дальнейшей селекционной работе. Цель исследований  – изучение селекционных признаков и генетических  особенностей выдающихся по молочной продуктивности коров бурой швицкой породы смоленской популяции с использованием маркерных генов групп крови для мобилизации собственных генетических ресурсов. Исследования проводили в 2018 – 2024 гг в лаборатории зоотехнологий ОП Смоленский НИИСХ   ФНЦ ЛК и племрепродукторе «Дружба» с использованием общепринятых методов биометрии и  иммуногенетических исследований. Объект исследования – селекционные признаки и иммуногенетические особенности 24 коров с рекордной продуктивностью (от 10062 до 12091 кг молока за лактацию, жирностью от 3,7 до 4,5 %, белковомолочностью от 3,0 до 4,5%) и их матерей. Первотелки  достоверно превосходили своих матерей,  в среднем: по возрасту 1 отела  на 3,3месяца, живой массе – на 11 кг, удою за 305 дней – на 635 кг, жирномолочности – на 0,17%, белковомолочности – на 0,11%.  За 305 дней лучшей лактации от рекордисток надоили на 4130*** кг молока больше, чем от матерей. Пик молочной продуктивности составил 3,5 лактации, в среднем, – на 0,6 лактации позже, чем у матерей. Генетическое разнообразие  сузилось: в аллелофонде лучших коров установлено 12 EAB – аллелей – на 5 единиц меньше, чем у матерей. Уровень гомозиготности  возрос  по сравнению с матерями в 2 раза и в 2,6 раза – по сравнению со стадом. Получены рекордистки гомогенным подбором, индекс генетического сходства  между родителями – 0,8. Большинство  коров (79%)   унаследовали от родителей наследственный материал, маркированный  EAB аллелем G3O1T1Y2E/3F/2G//2,  из них 71%  – от отцов, 25% коров    гомозиготны по данному маркеру.  Использование генетических маркеров позволяет консолидировать у потомков лучшие наследственные особенности родителей и повышать их молочную продуктивность.
Hippasa olivacea
Creators: name: SANKARAN, PRADEEP M.
name: CALEB, JOHN T. D.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Hippasa
Hippasa olivacea

description: Hippasa olivacea (Thorell, 1887)
Fig. 37
Diapontia olivacea Thorell, 1887: 297 (juvenile).
Hippasa olivacea — Pocock, 1900: 250 (♀). Gravely 1924: 593, fig. 1C (♀). Tikader & Malhotra 1980: 283, figs 83–84 (♀). Gajbe 2004: 4. Rao et al. 2005: 28. Bastawade 2008: 147.
Type material. Syntype (s) 1 ♀ and 1juvenile ♀ from MYANMAR: Pathein (= Bassein) and Yangon (= Rangoon), date unknown, collector unknown, repository MNHN, not examined.
Distribution. Myanmar and India: Andhra Pradesh, Madhya Pradesh, Maharashtra, Telengana (Thorell 1887; Pocock 1900; Gajbe 2004; Rao et al. 2005; Bastawade 2008) (Fig. 37).
Remarks. The World Spider Catalog (2022) record of H. olivacea, which is described from Myanmar, from India is probably based on Gravely (1924) and Tikader & Malhotra (1980). However, these authors never collected or examined specimens of H. olivacea from India; instead Tikader & Malhotra (1980) studied the types of this species, while Gravely (1924) examined non-type specimens from Myanmar. Even though Bastawade (2008), Gajbe (2004), and Rao et al. (2005) examined material from India, these authors never illustrated the genitalia of their specimens.
description: Published as part of SANKARAN, PRADEEP M. & CALEB, JOHN T. D., 2023, Notes on Indian wolf spiders: II. Genus Hippasa Simon, 1885 (Araneae: Lycosidae Hippasinae), pp. 101-152 in Zootaxa 5230 (2) on page 135, DOI: 10.11646/zootaxa.5230.2.1, http://zenodo.org/record/7554943
Hippasa fabreae Gajbe & Gajbe 1999
Creators: name: SANKARAN, PRADEEP M.
name: CALEB, JOHN T. D.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Hippasa
Hippasa fabreae

description: Hippasa fabreae Gajbe & Gajbe, 1999, nomen dubium
Fig. 32
Hippasa fabreae Gajbe & Gajbe, 1999: 24, figs 4–6 (♀). Gajbe 2004: 59, figs 53–55 (♀).
Type material. Holotype, immature ♀ from INDIA: Madhya Pradesh: Jabalpur: Khandari, 9 October 1997, P. Gajbe leg., repository NZC-ZSI (no register number specified), examined.
Remarks. This species must be considered a nomen dubium due to the immature stage of the female holotype. The epigynal area of the immature holotype was found intact except a small part, which was incised and had small piece of tissue removed and kept inside a smaller vial (Fig. 32C). It is quite surprising that, irrespective of the immature stage of the holotype, the authors were able to illustrate its genitalia, which are totally different from that of Hippasa species and are quite misleading (Gajbe & Gajbe 1999: figs 5–6). They probably illustrated the muscle sigillae at the epigynal area as that was the epigyne (Gajbe & Gajbe 1999: fig. 5).
The NZC-ZSI collection has one glass tube for this species, labeled as ‘holotype’ (no register number specified) containing one large immature female specimen in good condition. The same tube has a small glass vial containing a piece of tissue from the epigynal area (Fig. 32C).
description: Published as part of SANKARAN, PRADEEP M. & CALEB, JOHN T. D., 2023, Notes on Indian wolf spiders: II. Genus Hippasa Simon, 1885 (Araneae: Lycosidae Hippasinae), pp. 101-152 in Zootaxa 5230 (2) on pages 142-143, DOI: 10.11646/zootaxa.5230.2.1, http://zenodo.org/record/7554943
Hippasa greenalliae
Creators: name: SANKARAN, PRADEEP M.
name: CALEB, JOHN T. D.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Hippasa
Hippasa greenalliae

description: Hippasa greenalliae (Blackwall, 1867), nomen dubium
Lycosa greenalliae Blackwall, 1867: 387 (Description of immature ♀).
Hippasa greenalliae — Simon 1885: 31, plate XX, fig. 6 (♂ ♀; transfer from Lycosa). Sen et al. 2015: 47, plate XIV, figs 188–192 (♀) (misidentification, probably H. pantherina). Dhali et al. 2017: 69, plate XXIII, figs 317–321 (♀) (misidentification, probably H. pantherina). Subedi et al. 2022: 7.
Type material. Syntypes 2 immature ♀♀ from INDIA: somewhere in Agra or Meerut or New Delhi, date unknown, F. Lyon leg., repository unknown, possibly NHM, London or OUMNH, Oxford, not examined.
Remarks. Currently no specimens are available under the name ‘ Lycosa greenalliae ’ in OUMNH (Z. Simmons, pers. comm.) or is probably not deposited in NHM (D. Sherwood, pers. comm.). The type would either be lost, as most of Blackwall’s type material, or would be sitting elsewhere in the collection of OUMNH. The OUMNH collections hold a huge number of unsorted specimens in an enigmatic jar labeled ‘Blackwall’s types’, which does not have any specific labeling or listing, so that it requires careful examination of each specimen to cross verify with original description to identify each type (Z. Simmons, pers. comm.). The original description of this species does not provide any information regarding the exact name of its type locality (Blackwall 1867). It may probably be noted in the label (if any) kept along with the type specimens. To solve the taxonomic problems of H. greenalliae, either the type should be rediscovered, so that the name of the exact collecting locality will be available, or field collections should be made from Agra, Meerut and New Delhi and specimens obtained are compared with the original description of this species to assign a neotype for it. Until then, it is safe to consider H. greenalliae as a nomen dubium.
description: Published as part of SANKARAN, PRADEEP M. & CALEB, JOHN T. D., 2023, Notes on Indian wolf spiders: II. Genus Hippasa Simon, 1885 (Araneae: Lycosidae Hippasinae), pp. 101-152 in Zootaxa 5230 (2) on page 143, DOI: 10.11646/zootaxa.5230.2.1, http://zenodo.org/record/7554943
Hippasa hansae Gajbe & Gajbe 1999
Creators: name: SANKARAN, PRADEEP M.
name: CALEB, JOHN T. D.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Hippasa
Hippasa hansae

description: Hippasa hansae Gajbe & Gajbe, 1999, nomen dubium
Fig. 33
Hippasa hansae Gajbe & Gajbe, 1999: 23, figs 1–3 (♀). Gajbe 2004: 60, figs 56–58 (♀).
Type material. Holotype, immature ♀ from INDIA: Madhya Pradesh: Jabalpur: Madan Mahal Fort / Durgavati Fort (23°08'N, 79°54'E; 431 m alt.), 13 October 1997, P. Gajbe leg., repository NZC-ZSI (no register number specified), examined.
Remarks. Even though the female holotype of this species is immature, the authors provided genitalic illustrations for it, which are remarkably different from that of Hippasa species. Like H. fabreae, the authors considered the black markings on the epigynal area of the immature holotype as it was a genitalia and illustrated it. The opisthosomal pattern of this species suggests a possible synonymy with H. agelenoides, however, confirmation requires the examination of adult specimens from the type locality. Until adult specimens are found, it is treated as a nomen dubium.
The NZC-ZSI collection has one glass tube for H. hansae, labeled as ‘holotype’ (no register number specified) containing one immature female specimen in good condition, with broken legs. The same tube has a small glass vial containing a piece of tissue from the epigynal area (Fig. 33C).
description: Published as part of SANKARAN, PRADEEP M. & CALEB, JOHN T. D., 2023, Notes on Indian wolf spiders: II. Genus Hippasa Simon, 1885 (Araneae: Lycosidae Hippasinae), pp. 101-152 in Zootaxa 5230 (2) on page 143, DOI: 10.11646/zootaxa.5230.2.1, http://zenodo.org/record/7554943
Hippasa haryanensis Arora & Monga 1994
Creators: name: SANKARAN, PRADEEP M.
name: CALEB, JOHN T. D.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Hippasa
Hippasa haryanensis

description: Hippasa haryanensis Arora & Monga, 1994, nomen nudum
Hippasa haryanensis Arora & Monga, 1994: 74, figs 5–8 (♂ ♀).
Type material. Holotype ♀ from INDIA: Haryana: Hisar: Pigeon pea fields at Research Farm of Chaudhary Charan Singh (CCS) Haryana Agricultural University, 28 August 1989, P. Arora leg., repository unknown (no register number specified), not examined. Paratypes 10 ♂♂, 30 ♀♀, with the same data as holotype except 15 July 1989, 28 August 1989 and 20 September 1989, not examined. Allotype 1 ♂, with the same data as holotype, not examined.
Remarks. We were unable to examine the types of this species as no information is available about its repository (Arora & Monga 1994), and thus should be considered nomen nudum in the terms of art. 16.4 of the International Code of Zoological Nomenclature (ICZN 1999). The original description and genitalic illustrations of this smallsized species (body length: male 5.52, female 6.45) are poor and insufficiently informative to recognize it (Arora & Monga 1994: figs 5, 8). The original description of the female mentions that the sternum lacks the mid-longitudinal band (Arora & Monga 1994), indicating it may not be a member of Hippasa. Moreover, the median epigynal septum illustrated for this species (Arora & Monga 1994: fig. 8) indicates that it may be a member of either Ovia Sankaran, Malamel & Sebastian, 2017 or Trochosa C.L. Koch, 1847. The novelty and taxonomic placement of this species remain unchallenged until examination of its types or topotype specimens.
description: Published as part of SANKARAN, PRADEEP M. & CALEB, JOHN T. D., 2023, Notes on Indian wolf spiders: II. Genus Hippasa Simon, 1885 (Araneae: Lycosidae Hippasinae), pp. 101-152 in Zootaxa 5230 (2) on pages 144-145, DOI: 10.11646/zootaxa.5230.2.1, http://zenodo.org/record/7554943
Hippasa wigglesworthi Gajbe & Gajbe 1999
Creators: name: SANKARAN, PRADEEP M.
name: CALEB, JOHN T. D.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Hippasa
Hippasa wigglesworthi

description: Hippasa wigglesworthi Gajbe & Gajbe, 1999, nomen dubium
Fig. 34
Hippasa wigglesworthi Gajbe & Gajbe, 1999: 24, figs 7–9 (♀). Gajbe 2004: 62, figs 59–61 (♀).
Type material. Holotype immature ♀ from INDIA: Madhya Pradesh: Jabalpur: Madan Mahal Fort / Durgavati Fort (23°08'N, 79°54'E; 431 m alt.), 13 October 1997, P. Gajbe leg., repository NZC-ZSI, Kolkata (no register number specified), examined.
Remarks. Even though the holotype female of this species is immature, the authors provided genitalic illustrations that are unlike any Hippasa species. As in the description of H. fabreae and H. hansae, the authors considered the black markings on the epigynal area of the immature holotype as its genitalia and illustrated it. Until adult specimens are found, this species is treated as nomen dubium.
The NZC-ZSI collection has one glass tube for this species, labeled as ‘holotype’ (no register number specified) containing one large, immature female specimen in good condition, with detached opisthosoma. The same tube has a small glass vial containing a piece of tegument over the epigynal area (Fig. 34C). The label mentions the collecting locality as ‘Bheraghat in Jabalpur’ and the collecting date as ‘ 27 October 1997 ’.
description: Published as part of SANKARAN, PRADEEP M. & CALEB, JOHN T. D., 2023, Notes on Indian wolf spiders: II. Genus Hippasa Simon, 1885 (Araneae: Lycosidae Hippasinae), pp. 101-152 in Zootaxa 5230 (2) on page 145, DOI: 10.11646/zootaxa.5230.2.1, http://zenodo.org/record/7554943
Heterotanoides Sieg 1977
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Leptocheliidae
Heterotanoides

description: Genus Heterotanoides Sieg, 1977
Sieg (1977a): 203; Sieg (1983): 442–443; Sieg (1986a): 47; Bamber & Bird (1997): 117, 120; Bamber (1998): 101, fig. 8; Larsen & Wilson (2002): 13; Bird & Larsen (2009): 156; Bird (2012): 2–3.
Remarks. A small monogeneric family of small tanaids with phylogenetic affinity to the family Leptocheliidae Lang, 1973 according to an analysis by Bird (2012). It is quite widely distributed, including the southern tip of South America, the northern Pacific, East China Sea, New Zealand and South Africa. Nevertheless, the species’ small size (<2 mm, or even <1 mm) may lead to the genus being under-represented or overlooked in some collections.
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on page 9, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Heterotanoides Sieg 1977
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Leptocheliidae
Heterotanoides

description: Heterotanoides sp. FP#1
(Fig. 2)
Material examined. Preparatory (prep.) ♀, 1.28 mm, P. 102316, Stn 8-8.
Distribution. Ahurei Harbour, Rapa Iti, Bass (Austral) Islands, rubble, 2–17.7 m.
Remarks. Only a single specimen of this leptochelioid genus (Bird 2012) was recorded in this survey, precluding it from formal description. Although it has a close overall similarity (Fig. 2A–F) to its congeners (H. capensis Vanhöffen, 1914), H. cognatus Bamber & Bird, 1997, H. meridionalis Sieg, 1986a, H. muimui Bird, 2012, and H. ornatus Kudinova-Pasternak, 1976), it differs in having a character combination of: antennule article-3 with one subdistal aesthetasc (Fig. 2C), the cheliped palm with two ventral setae (Fig. 2D), and a two-segmented uropod exopod shorter than the endopod segment-1 (Fig. 2F). Of its congeners, the Heterotanoides species from Rapa Iti may be most like H. muimui from the northern region of the North Island, New Zealand (Bird 2012).
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on page 9, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Leptocheliinae Lang 1973
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Leptocheliidae

description: Subfamily Leptocheliinae Lang, 1973
leptocheliid sp. cf. Catenarius Bamber, 2008
(Fig. 3)
Material examined. MORANE: Non-ovigerous (non-ov.) ♀, 1.1 mm, P. 102325, Stn 59-2.
GAMBIER ISLANDS: Two non-ov. ♀♀, 1.3 and 1.6 mm (left cheliped missing), P. 102326, Stn 66-A.
Distribution and habitat. Morane, and Taravai (Gambier Islands), coral rubble, 10– 29 m.
Remarks. A small and delicate leptocheliid species (Fig. 3A). Its place in the leptocheliid classification is somewhat compromised by the lack of males in the sparse material (also precluding full taxonomic treatment) but its essential features can be summarised: antennule (Fig. 3B) with four articles (weak between articles 3 and 4) and distinct cap-like terminal segment; antenna (Fig. 3C) articles 2–3 each with thin dorsodistal spine; maxilliped endite with two distal setae; cheliped (Fig. 3D) basis dorsolateral seta simple, merus with single ventral seta, carpus with group of three ventral setae, chela slender (2.3 times ltb), fixed finger with two ventral setae and three adjacent to incisive margin; pereopod-1 (Fig. 3E) merus naked, carpus with long dorsodistal seta, dactylus and unguis subequal, together 1.2 times longer than propodus; pereopod-2 (Fig. 3F) ischium with seta, merus with inferodistal seta, carpus with small inferodistal spine and two distal setae, propodus with small inferodistal spine and superodistal seta, dactylus and unguis together half as long as propodus; uropod (Fig. 3G) exopod onesegmented, shorter than segment-1 of four-segmented endopod.
Following the extensive revision of the Leptocheliidae by Guţu (2016) this French Polynesian taxon emerges as Catenarius Bamber, 2008 in the key to the Leptocheliinae (Guţu op.cit: p.23, couplet 4) via presence of the long pereopod-1 superodistal seta and four-articled antennule (‘five-articled’ as used by Guţu). Yet, this species differs from the Queensland Catenarius daviei Bamber, 2008 in having no ventrodistal spine on antenna article-2, two maxilliped endite setae (cf. three), pereopod-1 dactylus and unguis subequal in length, and a one-segmented uropod exopod, inter alia. Whether this is within the generic envelope of Catenarius (currently monotypic) or represents a new, but closely allied, genus remains to be determined.
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on page 9, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Chondrochelia : Gutu 2016
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Leptocheliidae
Chondrochelia

description: Chondrochelia Guţu, 2016
Chondrochelia: Guţu (2016): 49 –57.
Leptochelia Dana, 1849 (in part): Guţu (2016): 50 –51.
Remarks. The highly complex and heterogeneous genus Leptochelia was revised and broken up in a recent publication by Guţu (2016), resulting, in part, in the formation of Chondrochelia. This genus now holds most of the species formerly regarded as part of the Leptochelia dubia-savignyi group i.e. those species whose males have chelipeds that are “longer than the antennule but generally shorter than the body” (paraphrasing Guţu 2016: 50); these compare with the very long dimorphic chelipeds of Leptochelia sensu stricto and other new leptocheliid genera, namely Alloleptochelia Guţu, 2016, Kalloleptochelia Guţu, 2016, Paraleptochelia Guţu, 2016, and Ektraleptochelia Bamber & Marshall, 2015 (= Permixtimella Guţu, 2016; see Guţu & Bird 2017).
Defining females of Chondrochelia is more problematic, although several characters may be thought diagnostic if in combination: maxilliped endites with three tubercles (but five in C. bulbus Bamber, 2006); cheliped merus with three ventral setae, fixed finger with six (or more) distal setae; pereopod-1 merus with one superodistal and two inferodistal setae, dactylus longer than unguis; pereopods 2–3 merus with inferodistal crotchet and seta, pereopod-2 propodus with 2–3 distal setae and 1–3 inferodistal spines. As Guţu (2016) admits, there remains a considerable amount of variability and overlap in the genus.
If the Kermadecs are considered part of a wider Polynesian region, then C. acrolophus (Bird, 2015) represents this genus here together with C. dubia (Krøyer, 1842) (as Leptochelia dubia) from Hawai’i (Bailey-Brock 1984; Miller 1940). Other “ Leptochelia -like” species recorded from the Polynesian region are Alloleptochelia erythraea (Kossmann, 1880) and L. lifuensis from the Gambiers, and Leptochelia minuta Dana, 1849 and a Leptochelia sp. from Fiji (Borradaile (1900). Table 4 summarises the Chondrochelia species recorded from the wider Indo-Pacific region.
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on page 10, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Poorea : Edgar 2012
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Leptocheliidae
Poorea

description: Poorea Edgar, 2012
Leptochelia (in part): Bamber (2005): 692 –697, figs 40–42; Bamber (2008): 198 –202, figs 33–35, Guţu & Iliffe (2011): 353 – 361, figs 1–4. Poorea: Edgar (2012): 19.
Remarks. An Indo-Pacific genus per its recent classification with seven species (Guţu 2016), enlarged from the original three (Edgar 2012). It is characterised primarily by the males’ relatively short antennule articles 1–2 and stout chelipeds resembling those of the females, with a vertical/near vertical spine comb on the mesial margin of the palm (propodus). As Guţu admits, there remains a significant amount of variation in cheliped and pereopod setation within the genus and some doubt about its species composition. A difficulty is that the generic diagnosis was formulated on a male (P. wrighti) and female (P. nobbi Bamber, 2005) of different species
However, a leptocheliid species from Rapa Iti collected during the SFPE-2014 appears to conform to Edgar’s and Guţu’s concepts of Poorea, including an inferodistal spine on the merus of pereopods 2 – 3, a character present in most of the species described so far.
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on page 26, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Triparatanais Bamber & Chatterjee 2010
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Paratanaidae
Triparatanais

description: Triparatanais Bamber & Chatterjee, 2010
Diagnosis. Modified from Bamber & Chatterjee (2010). Female. Paratanaidin, with eyes present. Pereonites all shorter than broad. Pleonites 1–4 epimera with simple seta and thick circumplumose seta. Antennule of three longer articles with or without minute distal article, article-1 with incomplete division, distal article with eccentric distal tip (apical spur). Antenna article-2 without ventral expansion or distal seta-bearing apophyses. Mandible left molar apex cleft or uncleft. Maxillule endite with nine terminal spines (some hooked). Maxilliped endites with round or incisor-shaped distal tubercles. Cheliped palm with slender distolateral spine adjacent to fixed finger; dactylus with or without slender ventral spines. Pereopod-1 basis with or without superior seta. Pereopods 2–3 carpus inferodistal crotchets molariform or longer than broad, unequal. Pereopods 4–6 coxa simple; merus with one or two inferodistal crotchets (one molariform in T. meios); carpus with paired inferior spinulate ridges, one superodistal seta and two or four distal crotchets, one molariform. Uropod peduncle shorter than endopod; endopod two-segmented; exopod one-segmented, shorter than segment-1 of endopod.
Male. Unknown.
Remarks. Although with an extensive diagnosis, the defining character of Triparatanais is the partiallydivided antennule article-1 (see also Bamber & Chatterjee 2010: 22), unlike the fully-fused article of Periparatanais. Useful features are the relatively short cheliped fixed finger/dactylus in relation to the palm and presence of molariform crotchets on the merus (T. meios Bamber & Chatterjee, 2010) and carpus of pereopods 4–6.
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on page 40, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Pseudotanais G. O. Sars 1882
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Pseudotanaidae
Pseudotanais

description: Pseudotanais sp. FP#1
(Fig. 22)
Material examined. One non-ov. ♀ (?), 1.0 mm, one ov. ♀, 1.5 mm, P. 102327, Stn 28-61.
Distribution. Anarua Bay, Rapa Iti, Austral Islands, coral rubble, 16.5– 17 m.
Remarks. Species-identification of these two small specimens (one in poor condition and partly covered with detritus) was not possible, although they have non-forcipate chelae (Fig. 22A), setose pereopod-1 basis (Fig. 22B), and pereopods 2–3 propodal setation of a “ non-affinis ” group, i.e. with the inferodistal (and anaxial) spine Fig. 22C) clearly shorter than the claw (dactylus and unguis), rather than being as long as or nearly as long (Bird & Holdich 1989). The cephalothorax is about as long as pereonites 1–3 combined and the length ratio of pereonites 1–3 is 6:10:15. The pereopods are slender, as are the uropods (Fig. 22D). Additional material of this species is needed to clarify its taxonomy.
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on page 45, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Zeuxo Templeton 1840
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Tanaididae
Zeuxo

description: Genus Zeuxo Templeton, 1840
Remarks. There are now 36 described and accepted species of this genus (WoRMS, accessed 17/8/2018), made up of two former, now supressed, subgenera Zeuxo (Parazeuxo) Sieg, 1980 and Zeuxo (Zeuxo) Templeton, 1840. The most recent accounts of the genus, or species thereof, are Larsen et al (2014), Bird (2015), and Tzeng & Hsueh (2015). Species discrimination is extremely difficult and requires morphometric/meristic analyses of characters such as cephalothorax and body length, and number of antennular aesthetascs, pereopod spines (crotchets), pleopod peduncular setae and uropod segments.
The species redescribed below would fit in the subgenus Zeuxo sensu Sieg (1980) because of its prominent coxal spur on pereopod-1, the two superodistal (‘tergal’ sensu Sieg 1980: 190) setae on the merus of pereopods 4– 6, and two mesial setae on the pleopod endopod.
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on page 47, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Zeuxoides Sieg 1980
Creators: name: Bird, Graham J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Tanaididae
Zeuxoides

description: Genus Zeuxoides Sieg, 1980
Remarks. A probable sister genus to Zeuxo within the tanaidid Tribe Anatanaini, Zeuxoides is less species-rich according to current knowledge, with only eleven described species (WoRMS, accessed 17/8/2018). It is distinguished from Zeuxo principally by the uropod’s short terminal segment, generally well-produced apophysis on the pereopod-1 coxa (but see Z. seurati above), and more numerous antennular aesthetascs (Sieg 1980: 163). The first character is shared, however, with the genus Pancoloides Sieg, 1980.
Unlike Zeuxo that has been recorded in both Hemispheres, Zeuxoides is known only from the Southern Hemisphere (Table 9; Sieg 1986b: 186, fig.6) and generally at mid–high latitudes, although the species described below is the most northerly of the genus, at the latitude c. 27°30’S.
description: Published as part of Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, pp. 1-75 in Zootaxa 4548 (1) on pages 56-57, DOI: 10.11646/zootaxa.4548.1.1, http://zenodo.org/record/2584426
Liadytidae Ponomarenko 1977
Creators: name: Prokin, Alexander A.
name: Petrov, Pyotr N.
name: Wang, Bo
name: Ponomarenko, Alexander G.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Liadytidae

description: Family Liadytidae Ponomarenko, 1977
Diagnosis (modified from Ponomarenko 1992, English translation of Ponomarenko 1977): Medium-sized aquatic beetles with oval, biconvex body. Head noticeably retraced into prothorax, scutellum visible. Mesocoxae located close to each other. Metepisterna reaching mesocoxal cavities. Metaventrite without anteromedial process protruding between mesocoxae, medially with elevated area sharply limited laterally. Anterior margin of metacoxae forming small median emargination bounded in front by extension of transverse metaventral suture. Legs slender and long. Metatibia not shorter than metafemur and metatarsus, very slender, linear. Tarsal segments not broad or paddle-shaped. Tibiae and tarsi with swimming setae.
Notes: A broad lateral part of the metathoracic praeepisternum, a metathoracic anepisternum that reaches the mesocoxal cavities, and a transverse suture of the metaventrite characterize only two known families of Dytiscoidea: Liadytidae and Aspidytidae, the only observable difference between which listed by Balke et al. (2003) is the absence of swimming setae in Aspidytidae. This character is, in fact, insufficient for distinguishing between families of Dytiscoidea, because the families Noteridae, Dytiscidae and Coptoclavidae include members that vary in the state of this character. The characters most clearly distinguishing Aspidytidae from the other Dytiscoidea, configuration of the scapus and pedicellus (Ribera et al. 2002), are not discernible in the known species of Liadytidae.
The new species Liadytes aspidytoides sp. n. is placed here in Liadytidae, based on the age of the fossils and on their mesocoxae located close to each other and the absence of the anteromedial metaventral process. This character distinguishes all Liadytes from all Aspidytes Ribera, Beutel, Balke & Vogler, 2002 and is reported here for the first time. Since Liadytes and Aspidytes are the single genera in the respective families, we can use this character also for distinguishing between the Liadytidae and Aspidytidae.
The monotypic genus Ovidytes and species O. gaoi Ren, Zhu & Lu, 1995 were described in the family Liadytidae (Ren et al. 1995). We could not study the type material of this species, but judging by the relatively short non-swimming legs, shown in an illustration to the original description, O. gaoi can hardly belong to Dytiscoidea.
description: Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on page 140, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466
Liadytes Ponomarenko 1963
Creators: name: Prokin, Alexander A.
name: Petrov, Pyotr N.
name: Wang, Bo
name: Ponomarenko, Alexander G.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Liadytidae
Liadytes

description: Genus Liadytes Ponomarenko, 1963
description: Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on page 140, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466
Dytiscidae Leach 1815
Creators: name: Prokin, Alexander A.
name: Petrov, Pyotr N.
name: Wang, Bo
name: Ponomarenko, Alexander G.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae

description: Family Dytiscidae Leach, 1815
description: Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on page 141, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466
Liadyxianus Prokin, Petrov, Wang & Ponomarenko, 2013, gen. n.
Creators: name: Prokin, Alexander A.
name: Petrov, Pyotr N.
name: Wang, Bo
name: Ponomarenko, Alexander G.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Liadyxianus

description: Liadyxianus gen. n.
Etymology: From the generic name Liadytiscus and Yixian Formation; gender masculine.
Type species: Liadyxianus kirejtshuki sp. n.
Diagnosis: Metacoxal plate somewhat shorter than lateral lobe of metaventrite (LC/LV slightly less than 1). Metaventrite with elevated rounded median area. Metacoxal lines weakly diverging anteriad. Metacoxal processes more or less conjointly truncate posteriorly, with posterior margins appearing somewhat sinuate, with incision between them. Lateral lobe of metaventrite not reaching lateral margin of metepisternum and metacoxal plate. Hindleg long, equal in length to abdomen. Metafemur, when stretched, reaching posterior margin of abdominal ventrite 3; metatibia longer than metafemur. Abdominal ventrite 1 shorter medially than any other abdominal ventrite; ventrite 2 longer medially than any other abdominal ventrite.
Comparison: The new genus differs from Liadytiscus and Liadroporus in the shorter metafemur, when stretched, reaching posterior margin of ventrite 3, and metacoxa somewhat shorter than lobe of metaventrite. It differs from Liadroporus in the more or less conjointly truncate metacoxal processes.
description: Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on page 143, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466
Liadyxianus kirejtshuki Prokin, Petrov, Wang & Ponomarenko, 2013, sp. n.
Creators: name: Prokin, Alexander A.
name: Petrov, Pyotr N.
name: Wang, Bo
name: Ponomarenko, Alexander G.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Liadyxianus
Liadyxianus kirejtshuki

description: Liadyxianus kirejtshuki sp. n.
Etymology: In honour of the coleopterist A.G. Kirejtshuk; noun in the genitive case.
Material: Holotype MNHN A31864, counter impression of beetle; China, probably Huanbanjigou (label indicates only formation); Early Cretaceous, Yixian Formation.
Description (Figs. 6, 7): Light coloured beetle. Head triangular, 1.5 times as wide as long. Pronotum 3.6 times as wide as long, with posterolateral angles rounded. Maximum body width situated at level of abdominal ventrite 1. Mesocoxae located close to each other. Mesofemur not dilated basally. Maximum length of metacoxal plate 0.9 times as great as maximum length of lateral lobe of metaventrite (LC/LV = 0.9). Metacoxal processes more or less conjointly truncate, with posterior margins appearing somewhat sinuate, reaching posterior margin of abdominal ventrite 1. Metafemur with sides slightly rounded. Metatibia slightly dilated towards its apex, slightly longer than metafemur; metatarsomere 1 somewhat shorter than metatarsomeres 2 and 3. Abdominal tergite 4 with round spiracle dorsally.
Measurements: Body length, 7.4 mm; body width, 3.7 mm; elytron length, 5.9 mm.
description: Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on pages 143-145, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466
Mesoderus punctatus Prokin, Petrov, Wang & Ponomarenko, 2013, sp. n.
Creators: name: Prokin, Alexander A.
name: Petrov, Pyotr N.
name: Wang, Bo
name: Ponomarenko, Alexander G.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Liadytidae
Mesoderus
Mesoderus punctatus

description: Mesoderus punctatus sp. n.
Etymology: The Latin punctatus (spotted); adjective in the nominative singular.
Material: Holotype NIGP 0 5622, counter impression of beetle; China, Liutiaogou; Early Cretaceous, Yixian Formation.
Description (Figs. 8, 9): Light coloured beetle. Maximum body width situated at middle of abdominal ventrite 2. Elytron light, with dark spots, distance between spots twice as great as their diameter. Head length equal to width at posterior margin of eyes. Pronotum three times as wide as long, 1.6 times as wide basally as distally. Profemur narrowed towards apex; protarsal claws equal in length. Mesocoxae slightly separated. Mesofemur with anterior margin straight and posterior margin convex, slightly protruding beyond sides of body; mesotibia straight, with setose anterior margin. Metacoxal plate 1.2 times as long as lateral lobe of metaventrite (LC/LV = 1.2). Metafemur dilated towards apex. Metatibia straight, slightly shorter than metafemur, with swimming setae. Metatarsomere 1 with swimming setae, equal in length to metatarsomere 2; metatarsomere 2 equal in length to metatarsomeres 3 and 4 together; metatarsomere 5 short, only half as long as metatarsomere 4; claws of metatarsus equal in length, twice as long as metatarsomere 5. Penis pointed and curved (see arrow in Fig. 10).
Measurements: Body length, 14.6 mm; body width, 7.5 mm; elytron length, 10.5 mm.
Comparison: Similar to M. magnus Prokin & Ren, 2010 in size and in the pointed and curved penis, but differs from it in the dorsal coloration, LC/LV, longer metacoxal processes, shape of meso- and metafemora, and shorter metatarsomere 1.
description: Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on pages 145-147, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466
Mesoderus ovatus Prokin, Petrov, Wang & Ponomarenko, 2013, sp. n.
Creators: name: Prokin, Alexander A.
name: Petrov, Pyotr N.
name: Wang, Bo
name: Ponomarenko, Alexander G.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Liadytidae
Mesoderus
Mesoderus ovatus

description: Mesoderus ovatus sp. n.
Etymology: The Latin ovatus (egg-shaped); adjective in the nominative singular.
Material: Holotype NIGP 154569, counter impression of beetle; China, Liutiaogou; Early Cretaceous, Yixian Formation.
Description (Figs. 10, 11): Light coloured beetle. Maximum body width situated at middle of metacoxae. Pronotum 3.3 times as wide as long, 1.5 times as wide basally as at its anterior margin. Mesocoxae widely separated. Mesofemur with anterior margin straight and posterior margin convex, slightly protruding beyond body sides; mesotibia straight, with holes at bases of setae on ventral surface. Metacoxal plate 1.7 times as long as lateral lobe of metaventrite (LC/LV = 1.7). Metacoxal processes extended to level of abdominal ventrite 2. Metafemur and metatibia dilated towards their apices, metatibia slightly shorter than metafemur. First metatarsomere 1.8 times as long as metatarsomere 2 and equal in length to metatarsomeres 2 and 3 together; metatarsomeres 3 and 4 equal in length; metatarsomere 5 slightly shorter.
Measurements: Body length, 10.8 mm; body width, 6.3 mm; elytron length, 8.7 mm.
Comparison: Similar to M. ventralis Prokin & Ren, 2010 in size, but differs from it in the ratio of the length of the metacoxal plate and lateral lobe of the metaventrite, longer metacoxal processes, shape of meso- and metafemora and metatibia, and shorter metatarsomere 1.
description: Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on page 147, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466
Mesodytes Prokin, Petrov, Wang & Ponomarenko, 2013, gen. n.
Creators: name: Prokin, Alexander A.
name: Petrov, Pyotr N.
name: Wang, Bo
name: Ponomarenko, Alexander G.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Mesodytes

description: Mesodytes gen. n.
Etymology: From the Mesozoic and the Greek δύτης (diver); gender masculine.
Type species: Mesodytes rhantoides sp. n.
Diagnosis: Elytron smooth, translucent, covered with matted rows of dark spots, separated by a distance greater than or equal to their diameter. Lobe of prosternal process flat, elongated, reaching mesocoxae. Maximum length of lateral lobe of metaventrite relatively great, but smaller than maximum length of metacoxal plate (LC/LV> 1). Lateral lobe of metaventrite not reaching lateral margins of metepisternum and mesocoxal plate. Metaventrite without elevated laterally limited area medially. Metacoxal lines weakly diverging anteriad. Metacoxal processes rounded posteriorly, slightly narrowed anteriad. Metafemur 1.5 times as long as metatibia. Metafemur, when outstretched, reaching middle of abdominal ventrite 4. First metatarsomere 1.5 times as long as metatarsomere 2.
Comparison: The new genus differs from the genus Mesoderus in the absence of an elevated laterally limited area of the metaventrite, translucent and dark-spotted elytron, and shorter metatibia and metatarsomere 1.
description: Published as part of Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), pp. 137-159 in Zootaxa 3666 (2) on page 147, DOI: 10.11646/zootaxa.3666.2.2, http://zenodo.org/record/220466