bluuebunny/crossref_metadata_2025 huggingface dataset:
Reverberation Intensity Decaying in Range-Dependent Waveguide
Authors: Wu J. R. , Gao T. F. , Shang E. C.
Published: May 2019

In this paper, an analytic range-independent reverberation model based on the first-order perturbation theory is extended to range-dependent waveguide. This model considers the effect of bottom composite roughness: small-scale bottom rough surface provides dominating energy for reverberation, whereas large-scale roughness has the effect of forward and back propagation. For slowly varying bottom and short signal pulse, analytic small-scale roughness backscattering theory is adapted in range-dependent waveguides. A parabolic equation is used to calculate Green functions in range-dependent waveguides, and the orthogonal property of local normal modes is employed to estimate the modal spectrum of PE field. Synthetic tests demonstrate that the proposed reverberation model works well, and it can also predict the reverberation of range-independent waveguide as a special case.
The Neoarchean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate
Authors: Kinny P. D. , Strachan R. A. , Fowler M. , Clark C. , Davis S. , Jahn I. , Taylor R. J. M. , Holdsworth R. E. , Dempsey E.
Published: May 2019

A tract of amphibolite-facies granitic gneisses and metagabbros in northern Shetland, UK, is here named the Uyea Gneiss Complex. Zircon U–Pb dating indicates emplacement of the igneous protoliths of the complex
c.
2746–2726 Ma, at a later time than most of the Archean protoliths of the Lewisian Gneiss Complex of mainland Scotland. Calc-alkaline geochemistry of the Uyea Gneiss Complex indicates arc-affinity and a strong genetic kinship among the mafic and felsic components. Zircon Hf compositions suggest an enriched mantle source and limited interaction with older crust during emplacement. Ductile fabrics developed soon after emplacement, with zircon rims at
c.
2710 Ma, but there was little further deformation until Caledonian reworking east of the Uyea Shear Zone. There is no evidence for the Paleoproterozoic reworking that dominates large tracts of the Lewisian Gneiss Complex and of the Nagssugtoqidian Orogen of East Greenland. The more northerly location of the Uyea Gneiss Complex and extensive offshore basement of similar age implies that, prior to the opening of the North Atlantic Ocean, these rocks were contiguous with the Archean Rae Craton.
Genome-wide association study for backfat thickness at 100 kg and loin muscle thickness in domestic pigs based on genotyping by sequencing
Authors: Chen Dejuan , Wu Pingxian , Yang Qiang , Wang Kai , Zhou Jie , Yang Xidi , Jiang Anan , Shen Linyuan , Xiao Weihang , Jiang Yanzhi , Zhu Li , Li Xuewei , Tang Guoqing
Published: May 2019

Both backfat thickness at 100 kg (B100) and loin muscle thickness (LMT) are economically important traits in pigs. In this study, a total of 1,200 pigs (600 Landrace and 600 Yorkshire pigs) were examined with genotyping by sequencing. A total of 345,570 single nucleotide polymorphisms (SNPs) were obtained from 1,200 pigs. Then, a single marker regression test was used to conduct a genome-wide association study for B100 and LMT. A total of 8 and 90 significant SNPs were detected for LMT and B100, respectively. Interestingly, two shared significant loci [located at Sus scrofa chromosome (SSC) 6: 149876694 and SSC12: 46226580] were detected in two breeds for B100. Furthermore, three potential candidate genes were found for LMT and B100. The positional candidate gene FAM3C (SSC18: 25573656, P = 2.48 × 10−9), which controls the survival, growth, and differentiation of tissues and cells, was found for LMT in Landrace pigs. At SSC9: 6.78–6.82 Mb in Landrace pigs, the positional candidate gene, INPPL1, which has a negative regulatory effect on diet-induced obesity and is involved in the regulation of insulin function, was found for B100. The candidate gene, RAB35, which regulates the adipocyte glucose transporter SLC2A4/ GLUT4, was identified at approximately SSC14: 40.09–40.13 Mb in Yorkshire pigs. The results of this GWAS will greatly advance our understanding of the genetic architecture of the LMT and B100 traits. However, these identified loci and genes need to be further verified in more pig populations, and their functions also need to be validated by more biological experiments in pigs.
Unmittelbare Remission eines mit großzelligem B-Non-Hodgkin-Lymphom befallenen inguinalen Lymphknotens unter alleiniger homöopathischer Behandlung mit Conium: Wann ist eine alleinige adjuvant-homöopathische Tumortherapie zulässig und sinnvoll?
Authors: Hümmer Heinrich , Wiecken Timm , Pachmann Katharina
Published: May 2019

Bei einer 63-jährigen Patientin wird mittels Biopsie eines linksinguinalen Lymphknotens ein großzelliges B-Non-Hodgkin-Lymphom diagnostiziert. Unmittelbar nach Beginn einer homöopathischen Therapie mit Conium C 30 beginnt sich der Lymphknoten in der linken Leiste zurückzubilden. Bei Exzision des Lymphknotens vierzehn Tage nach Therapiebeginn können histologisch keine Residuen des Tumors mehr nachgewiesen werden und es darf von einer vollständigen Remission ausgegangen werden. Die Patientin bleibt in der Folge rezidivfrei. Das homöopathische Mittel Conium (Schierling) kommt in der adjuvanten homöopathischen Tumortherapie und bei vergrößerten Lymphknoten als häufig indiziertes Mittel zur Anwendung.
Gestões sensacionalistas
Authors: Freire Mariana Baltar , Lepri Adil Giovanni
Published: May 2019

Este artigo argumenta por uma aproximação entre a espectatorialidade e estética do audiovisual na web e a experiência do cinema de atrações. A partir da análise de um caso em particular, mas que parece sintomático, pretendemos demonstrar como a retórica encontrada em boa parte dos audiovisuais do YouTube faz uso intenso do endereçamento direto ao espectador, da força performática da imagem e do corpo em movimento para a câmera e da lógica do excesso que marca o sensacionalismo, através de uma espectatorialidade participativa, fragmentária e errante. Essas características revelam permanências do regime de atrações nesses audiovisuais, bem como a força política de uma gestão moral a partir das estratégias sensacionalistas.
A ética nas famílias contemporâneas
Authors: Freire José Célio , Silva Caio Monteiro , Acselrad Marcio
Published: May 2019

O artigo investiga a ética nas famílias contemporâneas a partir das contribuições do pensamento de Emmanuel Lévinas, utilizando como suporte a análise do filme Boyhood – da infância à juventude, de 2014. Apresenta como problema de partida as mudanças experimentadas nas sociedades contemporâneas, principalmente no que diz respeito às relações de confiança, com alterações nas experiências de tempo e espaço, e na perspectiva de administração da vida. O filme Boyhood permite visualizar momentos de reprodução dos esquemas sociais mais abrangentes reiterados pela família, bem como os momentos de impugnação destes mesmos esquemas, apresentando um sentido ético tal como preconizado por Lévinas.
Rostos desfigurados: repúdio de imagens no espaço público
Authors: Palazuelos Felix Rebolledo , Fonseca Tania Mara Galli
Published: May 2019

Este artigo é sobre experienciar imagens como processo imagético interativo, como apontado por Bergson no livro Matéria e Memória, por meio de um aspecto dúbio do retrato fotográfico, em termos da sua recepção repudiada no espaço público. Apresentamos uma série de fotografias de quatro cidades latino-americanas que retratam rostos desfigurados intencionalmente. Recorrendo aos estudos de Deleuze, Bergson, Benjamin e Barthes, apontamos essas fotografias como testemunho documental de diferentes reações. As fotografias nos incitam a ir além do que os rostos desfigurados significam como signos icônicos, para serem vistas como indícios da interação dinâmica entre os retratos e os agentes desfigurantes anônimos, como uma imagem.
A epistemologia crítica e invisível da comunicação
Authors: Nakagawa Regiane Miranda de Oliveira
Published: May 2019

Esta resenha visa discutir os preceitos de uma possível “epistemologia política da comunicação”, tal como sugere Lucrécia D’Alessio Ferrara em seu livro A comunicação que não vemos, considerando a imponderabilidade dos processos comunicacionais edificados em meio a ambientes culturais de grande complexidade, e que nem sempre se mostram com clareza. Para isso, elucida de que maneira a autora perpassa o pensamento de alguns autores do campo da comunicação, com o intuito de indicar diferentes possibilidades de produção de conhecimento que se pautam pela dúvida e pela elaboração de inferências, e as implicações políticas desse processo. Por fim, aponta as possibilidades de estudo do exercício político da urbe por meio de tal abordagem epistemológica.
Exploring the effect of time and sex in family and community violence from 2008 to 2014
Authors: Barbosa Kevan Guilherme Nóbrega , Rodrigues Lorrany Gabriela , Alencar Gizelton Pereira , D’avila Sérgio , Ferreira Efigênia Ferreira e , Ferreira Raquel Conceição
Published: May 2019

OBJECTIVE: To evaluate the effect of the time and the sex of victims and perpetrators on the rates of family and community physical violence in a Brazilian municipality over seven years (2008–2014). METHODS: We made a census analysis from non-fatal victims attended in the Forensic Institute of the Scientific Civil Police. The monthly and annual violence rates were calculated based on the population size of the municipality. Time series was evaluated by negative binomial regression models, based on the number of cases with population offset and considering the effect of the sex of victims and perpetrators. RESULTS: A total of 3,324 cases of family and 4,634 cases of community violence were analyzed. There was a significant increase in family violence rates for female victims and male perpetrators. Family violence rates were always higher for female victims than for male and it was always lower for female perpetrators than for male (p < 0.001). There was a lower risk of community violence for male victims after 2013 and a decrease of aggression perpetrated by men over time. Men and women were similarly affected by community violence; however, the perpetrators were more frequently men. CONCLUSIONS: The results indicate a trend of increasing female victims in the family violence, mainly perpetrated by men. The reduction in community violence rates could be the result of policies to reduce crime.
A Bird’s Eye View on ECJ Judgments on Immigration, Asylum and Border Control Cases
Authors: Thym Daniel
Published: May 2019

Many experts of EU migration law deal with ECJ judgments on a regular basis, but they rarely reflect on how individual rulings on diverse themes such as asylum, family reunification or return relate to each other. This article fills that gap and presents a horizontal analysis of 155 judgments combining quantitative and qualitative findings. Our statistical survey shows that selected themes and references from certain countries dominate the ECJ’s activities. In qualitative terms, the article considers three overarching themes: the concept of public policy; the practice of statutory interpretation, including in light of objectives: the principle of proportionality and interaction with domestic courts. Our study shows that the search for cross-sectoral coherence defines much of the case law, although success of this venture is compromised by enduring inconsistencies, which complicate the emergence of a reliable and predictable judicial approach towards the interpretation of secondary legislation on migration.
Expulsions: The Construction of a Hostile Environment in Calais
Authors: Aris Escarcena Juan Pablo
Published: May 2019

After the dismantling of “the great Jungle” of Calais, migrants have returned to settle in the territory of the region. In this article I analyse how different instances of the government have developed policies to expel them from the region. We will focus on how security and humanitarian techniques have been used to create an area (a hostile environment) where the physical and social life of migrants in transit is not sustainable. In particular, it will analyse the closing of service areas to freight trucks, the prohibition of food distribution to migrants in Calais, and the use of physical and symbolic violence against volunteers and migrants. The article is based on an analysis of forms of government through the concept of Milieu (Foucault, 2009) and proposes the concept of Hostile Environment as the materialization of the “Politics of Exhaustion” (De Vries & Guild, 2018).
Regeneration in the Gorgonian Plexura Flexuosa (Cnidaria, Octocorallia)
Authors: da Silveira Fábio Lang , van’t Hof Tom
Published: May 2019

Regenerative capability of Plexaura flexuosa is investigated in experiments which simulate the injuries caused by predation of the ovulid snail Cyphoma gibbosum: partial or total removal of the coenenchyme from the axial skeleton.
Morphologie Végétale et Répartition des Mammifères
Authors: Girons Marie-Charlotte Saint
Published: May 2019

Dans beaucoup de travaux concernant la répartition des Mammifères, la végétation est étudiée tout particulièrement en tant que source de nourriture et l’importance de la morphologie des plantes est laissée de côté. La morphologie végétale n’est un facteur limite que dans le choix de la „niche écologique” mais n’intervient généralement pas dans la répartition géographique. En revanche, la densité des Mammifères est liée dans de nombreux cas à la morphologie de la végétation, particulièrement pour les mangeurs d’herbe (Rongeurs), moins pour les Insectivores et les petits Carnivores. De nombreux exemples sont donnés concernant les Mammifères d’Europe et d’Afrique du Nord; ils concernent la liaison entre la morphologie des plantes et les nids, le couvert, les points de repères assurés par les plantes, les exceptions et les adaptations, particulièrement dans les îles.
Patterns of Wolf Pack Movements Prior to Kills as Read from Tracks in Algonquin Provincial Park, Ont., Canada
Authors: Frijlink Jan Hilco
Published: May 2019

From data, gathered by the author and his students, during a wolf study in Algonquin Provincial Park, Canada, six kills of white-tailed deer by wolf packs are described. Case histories are reconstructed by means of interpreting tracks. In one case a wolf was also killed, this animal turned out to have been suffering from rabies.
The Taxonomy and Ecology of a New Monocelid Flatworm from Macquarie Island (Platyhelminthes, Turbellaria)
Authors: Ball Ian R. , Hay David A.
Published: May 2019

Macquarie Island (54°37’S 158°54’E) has been investigated for the occurrence of freshwater macroturbellarians. Twenty sites were examined but only one species, here ascribed to the genus Minona sensu lato of the Monocelididae, was found and it is described as Minona amnica sp. nov. Its closest taxonomic relationships seem to be with M. istanbulensis Ax from the Black Sea, and M. mica Marcus from Brasil. The new species is unusual in that it occurs throughout the fresh waters of the island even though it is a member of a predominantly marine group. Minona amnica occurs from windswept plateau lakes down to brackish water near the sea and data concerning the distribution and relative abundance of the species in various habitats are presented and discussed.
The Estimation of the Yearly Cycle of Submarine Irradiance for Ecological Purposes
Authors: Weinberg Steven , Cortel-Breeman Anneke
Published: May 2019

The yearly cycle of surface solar irradiance at Banyuls-sur-Mer is derived from meteorological data. Monthly irradiance attenuation coefficients of the seawater were obtained from Secchi disc readings, which enabled the authors to classify the monthly optical water types according to Jerlov's classification. The average daily values of submarine irradiance are calculated for each month, and for different depths. Calculations have been carried out for the visible spectrum (350-710 nm) subdivided into 20 nm bands. Submarine irradiance is given in energetic (cal cm-2 day-1) as well as quantum (μE m-2 ѕ-1) units. Some considerations are given for underwater stations with different degrees of exposition to available light.
Moult of Primaries and Rectrices in the Greater Frigatebird, Fregata Minor, on Genovesa, Galápagos
Authors: de Korte J. , de Vries TJ.
Published: May 2019

Greater Frigatebirds with eggs and nestlings have a complete set of primaries and rarely show active moult in rectrices. In the wing serial descendant moult can be recognized; moult may be interrupted at any primary. The tail moult shows no detectable pattern.
The Structure of the Columellar Muscle System in Clio Pyramidata and Cymbulia Peroni (Theocosomata, Gastropoda)
Authors: Pafort-van Iersel Trudy , van der Spoel S.
Published: May 2019

The phylogenetic relation between Clio pyramidata Linnaeus, 1767, and Cymbulia peroni De Blainville, 1818, has been studied with regard to the structure of their muscle systems. Specimens of both species collected from the North Atlantic Ocean and the Mediterranean were sectioned 5 μm thick and stained with Haematoxilin-Eosin, Crossmon or Azan for histological purposes or they were studied as cleared dissected or entire animals. The columellar muscle and subectodermal wing muscles of both species are described. It is concluded that Clio shows neoteny since it develops without metamorphosis. The asymmetry in anatomy proves that both Clio and Cymbulia descend from spiralised ancestors. For Clio two primitive characters are discussed which may be due to the “larval stage” of the adult but which also affirm the possible relation of molluscs to a coelenterate-like ancestor. Original structures found in Cymbulia are also discussed in the light of a possible phylogenetic relation between Thecosomata and Coelenterata, more in particular Conulata.
Taxonomy and Zoogeography of the Fruits Bats of the People’s Republic of Congo, with Notes on their Reproductive Bilogy (Mammalia, Megachiroptera)
Authors: Bergmans W.
Published: May 2019

This study deals with 272 Megachiroptera from the People’s Republic of Congo, belonging to 13 taxa: Eidolon helvum helvum (Kerr), Rousettus aegyptiacus unicolor (Gray), Lissonycteris angolensis angolensis (Bocage), Myonycteris torquata (Dobson), Hypsignathus monstrosus Allen, Epomops franqueti franqueti (Tomes), Epomophorus cf. labiatus (Temminck), Epomophorus wahlbergi haldemani (Halowell), Micropteropus grandis Sanborn, Micropteropus pusillus (Peters), Scotonycteris zenkeri zenkeri Matschie, Scotonycteris ophiodon Pohle, and Megaloglossus woermanni Pagenstecher.
The Karyotypes of Two Dugesia Species from Corfu, Greece (Platyhelminthes, Turbellaria)
Authors: Ball Ian R.
Published: May 2019

Dugesia gonocephala (Dugès, 1830) and D. polychroa (Schmidt, 1861), collected from the Greek island of Corfu, have been investigated karyologically. The former is a sexual diploid (2n = 16) in which all the chromosomes are metacentric. The latter is a sexual diploid (2n = 8) with one submetacentric and three metacentric chromosome pairs.
The Light-Dependent Behaviour of Planula Larvae of Eunicella Singularis and Corallium Rubrum and its Implication for Octocorallian Ecology
Authors: Weinberg Steven
Published: May 2019

The behaviour of Mediterranean octocoral planulae was studied in light-dark situations and in a light gradient. Larvae of Eunicella singularis (Esper, 1794) reacted photopositively but it is uncertain which mechanism (klinotaxis or klinokinesis) determines this property. The blind larvae probably possess a dermal light sense, but it cannot be excluded that the yolk contains photosensitive carotenoids while the symbiotic zooxanthellae may also play a role. The photopositive behaviour of planulae of this species explains some aspects of the distributional ecology of adult colonies. It was also found that for the induction of settlement and metamorphosis the chemical properties of a given substratum seem to be far more important than its roughness. Larvae of Corallium rubrum (Linnaeus, 1758) are geonegative and indifferent to light. This latter fact is surprising, since in nature the colonies are exclusively found in dark places. It is supposed, therefore, that tolerance of the colonies rather than larval choice determines light-dependent zonation of this species in nature.
New Data on Taxonomy and Zoogeography of Ingolfiellid Crustacea
Authors: Stock Jan H.
Published: May 2019

Groundwaters (in wells, springs, caves, macroporous interstitia...) of 29 Caribbean islands have been investigated. Only on the four islands off the coast of Venezuela (viz., Aruba, Curaçao, Bonaire, and Margarita) members of the suborder Ingolfiellidea (Crustacea, Amphipoda) have been encountered, altogether six species, of which three are described here for the first time. The zoogeographical implications of this limited range in the West Indies is discussed.
Notodiaptomus Caperatus, a New Calanoid Copepod from Phreatic Groundwater in Barbuda (Crustacea: Diaptomidae)
Authors: Bowman Thomas E.
Published: May 2019

Notodiaptomus caperatus n. sp., from a well in Barbuda, is described and illustrated. It is the first diaptomid from the Lesser Antilles and the first West Indian diaptomid having affinities with South American species.
Arubolana Imula n. gen., n. sp., the First Hypogean Cirolanid Isopod Crustacean found in the Lesser Antilles
Authors: Botosaneanu Lazare , Stock Jan H.
Published: May 2019

Arubolana imula, a new stygobiont isopod genus and species of the family Cirolanidae is described from Aruba (Netherlands Antilles). The new taxon has been discovered in an artificial tunnel, used for the production of industrial water, cut into calcareous rocks from marine origin which were rather recently uplifted above sea level (90,000-500,000 years B.P.). This is the first hypogean cirolanid that becomes known from the Lesser Antilles.
Étude Hydrobiologique d’und Rivière de Région Méditerranéenne, l’Argens (Var, France)
Authors: Giudicelli Jean , Dia Aref , Legier Pierre
Published: May 2019

This is the first almost complete hydrobiological monograph of a water-course in a low altitude Mediterranean coastal drainage basin. Through knowledge of the hydrological and physicochemical peculiarities as well as an analysis of the biocoenoses, an ecological zonation of the river is established.
Une Stactoria Nouvelle du Liban (Trichoptera, Hydroptilidae): Ses Stades Aquatiques et Leurs Constructions
Authors: Dia Aref , Botosaneanu Lazare
Published: May 2019

Description of a new species, Stactobia pacatoria sp. n., from Lebanon, clearly belonging to the nielseni-group, as defined by Schmid (1959). Notes are given on the 5th instar larva and the pupa, as well as on the remarkable larval and pupal cases, which are built using minute calcite fragments abundantly present in the biotope of the species (a madicolous habitat with very hard water).
Aspects of Sound Communication in Some Caribbean Reef Fishes (Eupomacentrus spec., Pisces: Pomacentridae)
Authors: Albrecht Helmut
Published: May 2019

Four species of sympatric damselfishes (Eupomacentrus, Pomacentridae) from certain Florida reefs can be distinguished by certain sound characteristics used during courtship. Apparently the fish use these characteristics for species recognition. These characteristics involve the temporal structure of a sound, i.e. the length of the pulse interval, containing the necessary code for communication.
A representative of the Mainly Abyssal Family Pardaliscidae (Crustacea, Amphipoda) in Cave Waters of the Caicos Islands
Authors: Stock Jan H. , Vermeulen Jan J.
Published: May 2019

A new genus and species of Amphipoda is described from cave waters on Providenciales (Caicos Islands) as Spelaeonicippe provo. Another species belonging to the same new genus is known from a cave on Lanzarote (Canary Islands). The genus belongs to the Pardaliscidae, a predominantly bathyal/abyssal family. A possible evolutionary scenario for both species is discussed.
Notes on Rhinolophus Lacépède, 1799 from Sulawesi, Indonesia, with the Description of a New Species (Mammalia, Microchiroptera)
Authors: Bergmans Wim , Rozendaal Frank G.
Published: May 2019

Known Sulawesian Rhinolophus belong to three species: R. philippinensis Waterhouse, 1843, R. celebensis Andersen, 1905, and R. tatar n. sp., described in this paper. Sulawesian records of R. euryotis Temminck, 1835, by Tate & Archbold (1939) are based on misidentifications.
Predation as a Factor Influencing the Occurrence and Distribution of Small Crustacea in West Indian Groundwaters
Authors: Stock Jan H.
Published: May 2019

Hadziid Amphipoda are known from inland groundwaters of 14 West Indian islands, Thermosbaenacea from those of 9 islands. Only 4 islands show joint occurrence of both groups. Even in islands of joint occurrence, hadziids occur significantly more often alone in a given locality, than in combination with Thermosbaenacea or Copepoda Cyclopidae. The latter two groups do not show any significant avoidance of each other. Some possible causes for the non-random occurrence of small groundwater Crustacea are discussed; it seems most likely that hadziids predate on other Crustacea, such as Thermosbaenacea or Cyclopidae. This predation may have, or have had, influence on the actual distribution patterns of the groups under consideration.
The Subfamily Candoninae (Crustacea, Ostracoda) in the West Indies
Authors: Broodbakker Nico W.
Published: May 2019

Nine new species, two new genera, and two new subgenera of the subfamily Candoninae are described, viz.: a species of the genus Candonopsis, C. hummelincki, probably epigean, with a wide distribution; two new species of the genus Pseudocandona, both elongate in shape, Ps. geratsi, interstitial, in several states of Venezuela, and Ps. antilliana, epigean, widespread throughout the Antillean Islands, including Cuba, Jamaica and Hispaniola; and two species of Pseudocandona with less elongate, reticulated carapaces and a straight dorsal margin, viz. Ps. caribbeana, interstitial, in brooks and small rivers in Jamaica and Venezuela, and Ps. cubensis, troglobitic, found in cave waters in Cuba.
The Existence of different Fin Whale, Balaenoptera Physalus, populations in South Atlantic waters.
Authors: van Beek J.G. , van Utrecht W.L.
Published: May 2019

The southern hemisphere has been divided into six Areas for baleen whale management purposes. It was assumed that of the different baleen whale species one population lives in each Area. However, evidence exists which suggests that different Fin Whale populations intermingle on the feeding grounds of anArea. This obviously would have implications with respect to Fin Whale management.
Morphological Differentiation of the Genus Niphargus (Amphipoda) on Corsica — A Numerical Approach
Authors: Hovenkamp W. , Hovenkamp F. , van der Heide J.J.
Published: May 2019

A short introduction is provided on the taxonomic status of the genus Niphargus, especially on the species related to N. longicaudatus corsicanus. Previous findings and descriptions are mentioned. An attempt is made to clarify the relationships between Corsican Niphargus populations by means of a cluster analysis and a principal components analysis combined with a cluster analysis. Special attention has been paid to the size-dependent variability of most of the characters. The results of both methods of analysis are compared with each other and evaluated. The morphological differentiation between populations is, on the average, greater than within populations. This, along with the large amount of character variability, makes it very difficult to fit populations into, or to distinguish them from, any of the — often poorly described — taxa of Niphargus.
Genetic Differentiation between African and European Midwife Toads (Alytes, Discoglossidae)
Authors: Arntzen J.W. , Szymura J.M.
Published: May 2019

Toads of the genus Alytes from the Rif mountains in Morocco are electrophoretically very similar to Iberian Alytes obstetricans (DNei = 0.07). Genetic distance estimates across the Straits of Gibraltar do not exceed the values found among European samples. The data point to relatively recent colonization or anthropogenic introduction of the Midwife Toad in Africa. The notion of Pasteur & Bons (1962) that Alytes from the Rif mountains might represent a separate species is not corroborated.
Pyxiloricaria Menezesi, A New Genus and Species of Mailed Catfish from Rio Miranda and Rio Cuiabá, Brazil (Pisces, Siluriformes, Loricariidae)
Authors: Isbrücker I.J.H. , Nijssen H.
Published: May 2019

Pyxiloricaria menezesi n. gen., n. sp., is described and illustrated from Rio Miranda (Est. Mato Grosso do Sul) and from Rio Cuiabá (Est. Mato Grosso), Brazil. It is assigned to the subtribe Planiloricariina of the tribe Loricariini, subfamily Loricariinae. A comparison is made with sympatric Pseudohemiodon cf. laticeps (Regan, 1904).
Halacaridae (Acari) von den Westindischen Inseln
Authors: Bartsch Ilse
Published: May 2019

Five halacarid species, found in the mesopsammal of Caribbean Islands, are described, viz. Halacarellus tropicalis n. sp., Copidognathus grandiosus n. sp., Agaue arubaensis n. sp., Scaptognathus ornatus n. sp., and Limnohalacarus cultellatus Viets, 1940. H. tropicalis is the first member of the genus Halacarellus reported from tropical beaches.
Harpacticoid Copepods from the West Indian Islands: Canuellidae and Longipediidae (Copepoda, Harpacticoida)
Authors: Fiers Frank
Published: May 2019

This paper is the first of a series dealing with the systematics of harpacticoid copepods collected during the West Indian Expeditions of the University of Amsterdam. In the present paper a new species, Scottolana antillensis n. sp., is described. Furthermore, Ellucana secunda Coull, 1971, is compared with E. longicauda Sewell, 1940, and morphological details are given for Longipedia spec.
Lasiancistrus Scolymus, A New Species of Mailed Catfish from Rio Aripuanã, Est. Mato Grosso do sul, Brazil (Pisces, Siluriformes, Loricariidae)
Authors: Nijssen H. , Isbrücker I.J.H.
Published: May 2019

Lasiancistrus scolymus n. sp. is described and illustrated, based upon the holotype from Rio Aripuanā, Rio Madeira system, Est. Mato Grosso do Sul, Brazil. It is compared with Lasiancistrus heteracanthus (Günther, 1869), type-species of the genus Lasiancistrus Regan, 1904.
Occurrence of the Isopod Iridovirus in European Armadillidium and Porcellio (Crustacea, Isopoda)
Authors: Poinar George O. , Hess Roberta T. , Stock Jan H.
Published: May 2019

First record of iridovirus infections of terrestrial isopods (Armadillidium vulgare and Porcellio scaber) in Europe (The Netherlands). Infested specimens can be detected by their bright blue color.
Stygobiont Amphipod Crustaceans of the Hadzioid Group from Haiti
Authors: Stock Jan H.
Published: May 2019

The stygobiont gammarids of Haiti are more diversified than anywhere else in the world: not less than 13 species (all new) in 7 genera (5 new) and 4 subgenera (all new) are described of a somewhat loosely delimited group called the hadzioids/weckelioids.
Locomotion in Hyaenidae
Authors: Spoor C. F. , Belterman Th.
Published: May 2019

Crocuta crocuta and Hyaena hyaena use a walking gait with lateral sequence and couplets. The duration of contact between the fore feet and the ground is always longer than that of the hind feet. C. crocuta varies the pace angle (slow walk) and the duty factor (fast walk) between the fore and hind limbs to compensate the effect of the relatively long fore limbs on the mode of locomotion. Fast symmetrical gaits were not observed. Both species use the transverse gallop for faster locomotion.
Beschreibung des Thermocyclops Hastatus Antillensis n. ssp. mit einem Bestimmungsschlüssel für die Gattung Thermocyclops Kiefer, 1927
Authors: Herbst Hans-Volkmar
Published: May 2019

Une nouvelle sous-espèce de Thermocyclops a été découverte dans un puits à la Guadeloupe (Indes occidentales). Appartenant au groupe d’espèces schmeili, le nouveau taxon est étroitement apparenté à Th. hastatus Kiefer, 1952 (décrit comme Th. schmeili hastatus). Cependant, certaines particularités morphologiques de la population permettent de la décrire comme Th. hastatus antillensis n. ssp. On remarque le fait que toutes les espèces et sous-espèces actuellement connues appartenant au groupe schmeili peuplent les tropiques de l’Ancien Monde (Afrique, Zanzibar, Madagascar, Inde). Une clé de détermination, basée principalement sur la littérature, est fournie pour les espèces de Thermocyclops.
Notes on the Distribution and Phylogenetic Significance of Post-Cloacal Sacs and Bones as Occurring in the Gekkota (Reptilia)
Authors: Bastinck J.
Published: May 2019

On the basis of Kluge’s (1982) paper on post-cloacal sacs and bones in the Gekkota the following matters are presented: (1) the situation in the gekkonid genera Microscalabotes and Paragehyra is recorded, (2) the situation in the gekkonid genus Lygodactylus is extensively reviewed and commented upon, (3) the post-cloacal sac variability in the gekkonid genus Thecadactylus, first noted by Hoogmoed (1973) and evidently overlooked by Kluge, is confirmed and commented upon, (4) Kluge’s interpretation of the phylogenetic significance of post-cloacal sacs is discussed.
The Fishes of the Cichlid Genus Crenicichla in French Guiana (Pisces, Perciformes, Cichlidae)
Authors: Ploeg A.
Published: May 2019

A review of the species of the cichlid genus Crenicichla Heckel, 1840 in French Guiana is presented. Five species are encountered, viz.: C. saxatilis (Linnaeus, 1758), C. albopunctata Pellegrin, 1904, C. multispinosa Pellegrin, 1903, C. ternetzi Norman, 1926, and C. johanna Heckel, 1840. Their geographic distribution is indicated. The variation of morphometric, meristic, and pigment characters are examined. The variability of these characters is compared with the variability within Crenicichla saxatilis from the Suriname River, Surinam (Ploeg, 1986).
New Species of Demospongiae (Porifera) from the National Park “Archipiélago de los Roques”, Venezuela
Authors: Cristina Díaz M. , Alvarez Belinda , van Soest R.W.M.
Published: May 2019

Three new species of Demospongiae from coral reefs of the Archipiélago de Los Roques National Park (Venezuelan Caribbean) and Curaçao (Netherlands Antilles) are described, viz. Eurypon laughlini n. sp., Topsentia roquensis n. sp., and Epipolasis reiswigi n. sp. The new species and the genera to which they have been assigned are discussed, as a result of which the genus Fasubera De Laubenfels, 1936, is synonymized with Eurypon Gray, 1867, and the genus Epipolasis is redefined based on characters of its typespecies. Extensive ecological data are provided for each species.
Medusae of the Genera Paraphyllina, Periphylla and Atolla from the Amsterdam mid North Atlantic Plankton Expeditions (1980-1983)
Authors: van der Spoel S.
Published: May 2019

The vertical distribution patterns of Paraphyllina ransoni Russell, 1956, Periphylla periphylla (Péron & Lesueur, 1809), Atolla parva Russell, 1958, A. vanhoeffeni Russell, 1957, and A. wyvillei Haeckel, 1880 are described. A comparison with other bathypelagic taxa shows that there are various upper limits to be drawn for the bathypelagic area. Four typically different vertical distribution patterns are described.
Copépodes Harpacticoïdes Stygobies D’Algérie
Authors: Rouch R.
Published: May 2019

Trois nouvelles espèces d’Harpacticoïdes, Nitocrellopsis petkovskii. Elaphoidella algeriensis et Parastenocaris numidiensis ainsi que plusieurs stations nouvelles de Parapseudoleptomesochra minoricae (Chappuis & Rouch, 1960) ont été découvertes dans les eaux souterraines d’Algérie.
Distribution and Present Numbers of the Tree Frog Hyla Arborea in Zealand Flanders, The Netherlands (Amphibia, Hylidae)
Authors: Stumpel Anton H.P.
Published: May 2019

A distribution survey of Hyla arborea has been carried out in the western part of Zealand Flanders over a period of six years. Additional data on the eastern part and the neighbouring Belgian area have been collected. The relationship between the maximum number of males calling on one evening/night and the estimate of their population size is a suitable basis to predict the total number of males in other pools during a season. Methodological aspects of the fieldwork are discussed. Great fluctuations in presence and activity of the Tree Frog illustrate the need for longterm surveys. Hyla arborea is declining, and nowadays its distribution is restricted to some localities in the western part of the region. These localities are classified according to the number of males and their importance for conservation.
Lusitanian Species of the Amphipod Pseudoniphargus Chevreux, 1901 with a key to all known Iberian Species
Authors: Notenboom Jos
Published: May 2019

Pseudoniphargus callaicus n. sp. is described from a well in the vicinity of the coast in northwestern Galicia, Spain. The type materials of Ps. mateusorum Stock, longispinum Stock, and brevipedunculatus Stock are reexamined and their resemblances discussed.
Metahadzia Uncispina, A New Amphipod from Phreatic Ground-Waters of the Guadalquivir River basin of Southern Spain
Authors: Notenboom Jos
Published: May 2019

Metahadzia uncispina n. sp. is described, being the second species of the genus on the Iberian Peninsula. The new species, well characterized by the transformation of the apical spine on the endopodite of the male uropod 2, is undoubtedly closely related with M. tavaresi (Mateus & Mateus, 1972) from the south of Portugal. Comments are made about recent emendations of the original concept of the genus Metahadzia Stock, 1977.
Genetic Differentiation of the Iberian Amphiodus Gammarus Ibericus Margalef, 1951 and G. Gauthieri S. Karaman, 1935, with Reference to some Related Species in France
Authors: Scheepmaker Maarten , van der Meer Frits , Pinkster Sjouk
Published: May 2019

Populations of five related species belonging to the Gammarus pulex group from the Iberian Peninsula and southern France have been studied electrophoretically at 21 enzyme loci. Morphologically distinct forms from the same side of the Pyrenees proved to be genetically more similar than morphologically very similar forms from opposite sides of this barrier.
Les Larves D’Ecnomus Tenellus et D’E. Deceptor (Trichoptera, Ecnomidae): Identification, Distribution, Biologie et Écologie
Authors: Stroot Philippe , Tachet Henri , Dolédec Sylvain
Published: May 2019

La larve d’Ecnomus deceptor est décrite pour la première fois, par comparaison avec celle d’Ecnomus tenellus dont elle se distingue par des caractères de coloration et par ses dimensions. Les larves des deux espèces sont d’autre part très proches morphologiquement et écologiquement. Toutes deux sont prédatrices et relativement tolérantes vis-à-vis des conditions du milieu. Dès lors, des questions se posent à propos de la distribution relativement restreinte d’E.deceptor, et d’une possible compétition entre Ecnomidae et Polycentropodidae et entre populations sympatriques d’Ecnomus.
Pycnogonida collected in interstitia of coral sand and rubble in the Netherlands Antilles.
Authors: Stock Jan H.
Published: May 2019

Seven species of Pycnogonida are recorded from the islands of Curaçao and Bonaire, living in coral debris (sand, rubble), often quite deep (40–80 cm) in the sediment. Two species (both new) occur in larger numbers and are considered truly interstitial. The others possibly are only accidental in this kind of habitat.
Shallow-water phoxocephalid Amphipoda (Crustacea) of Korea
Authors: Jo Young Won
Published: May 2019

Five new species of phoxocephalid amphipods from sandy beaches in Korea belonging to two genera are described and figured: Mandibulophoxus mai n. sp., M. hongae n. sp., Grandifoxus malipoensis n. sp., G. cuspis n. sp., and G. bangpoensis n. sp. Keys to the known species and diagnoses of the genera are provided. The male characters of the genus Mandibulophoxus are given for the first time, but no male specimens of Grandifoxus were obtained during the present study.
Lovenula (Neolovenula) alluaudi (Guerne and Richard, 1890) in the Canary Islands (Copepoda: Calanoida: Paradiaptominae)
Authors: Bowman Thomas E.
Published: May 2019

Lovenula (Neolovenula) alluaudi is widespread on Lanzarote, where it occurred at 22 of the 105 stations. On Fuerteventura it was found at only 2 of the 53 stations, both in the extreme north-west part of the island. It was also found in a reservoir on the south side of the small island of Alegranza. Samples collected at several hundred stations in the other Canary Islands failed to yield a single calanoid, supporting the belief that the eastern islands are fragments of the African continent that drifted to deeper waters.
Some species of Tropocyclops (Crustacea, Copepoda) from Brazil, with a key to the American species
Authors: Reid Janet W.
Published: May 2019

Collections from the Brazilian Planalto and Amazon regions contained several species of the cyclopoid copepod genus Tropocyclops. The morphology of T. schubarti is discussed; new records of this species extend its known distribution west-ward to the Brazilian Amazon and central highlands. Morphological characteristics of some populations of the T. prasinus-group are most similar to T. prasinus mexicanus and T. prasinus s. str. Tropocyclops federensis n. sp. and T. nananae n. sp. are described from the Distrito Federal. A key and chart are provided for the identification of species of Tropocyclops recorded from the Americas.
A new species of Ammothella (Pycnogonida: Ammotheidae) from deep water off San Nicolas Island, California
Authors: Dojiri Masahiro , Cadien Donald B. , Phillips Charles A.
Published: May 2019

Ammothella killix n. sp. is described from upper bathyal depths on the Cortez Ridge; it is the tenth in the genus from the eastern Pacific, and sixth from California. It differs from its congeners most noticeably in having chelifore fusion, and in bearing slender spiny tubercles onall of the following parts: the chelifore scapes, ocular tubercle, abdomen, lateral processes, first coxae, mid-dorsal surface, and anterior cephalic corners. A key to the species of adult Ammothella from California waters is included.
Distribution of Myctophidae (Pisces, Myctophiformes) during the four seasons in the mid North Atlantic
Authors: van der Spoel S. , Bleeker J.
Published: May 2019

The distribution, temperature, and size ranges of 60 species of myctophids in the North Atlantic between 55°N and 24°N along approximately 30°W are recorded for the four seasons. The general zoogeography and migration is discussed. Faunal groups of species, faunal borders, and transition zones near 50°N, 41 °N, and 29°N for myctophids are distinguished and discussed.
The eye-catching cicada Hamza ciliaris (Linnaeus, 1758) comb. n. in Indonesia and the Pacific: taxonomic status, synonymy, and distribution (Homoptera, Cicadoidea)
Authors: Duffels J.P.
Published: May 2019

The new combination Hamza ciliaris (Linnaeus) is proposed for a cicada species widely distributed in Maluku ( = Moluccas), Timor, Banda, Kei and Banggai Islands, the Philippines, and the Palau group of the Caroline Islands.
Die Polychaeten der Amsterdam-Expedition nach der Insel Ascension (Zentral-Atlantik)
Authors: Hartmann-Schröder Gesa
Published: May 2019

During the Amsterdam Expedition to Ascension Island in 1989 eighteen species of polychaetes were collected, fifteen of which were already known to science. One could not be identified to species level and two were new to science: Aricidea (Aedicira) ascensionensis n. sp. and Notodasus arenicola n. sp. Four of the known species are widely distributed, three are circumtropicalsubtropical and one has a tropical-subtropical distribution in the Pacific and in the Atlantic Ocean. Another species is recorded from different regions in the Atlantic Ocean. The rest of the species were –.until now –.only known from their type localities, viz. West Indies, Angola, Persian Gulf, Galapagos Islands, and South Shetland Islands.
Groundwater and marine intertidal Tubificidae (Oligochaeta) from the Canary and Cabo Verde Islands, with descriptions of two new species
Authors: Erséus Christer
Published: May 2019

Seven species of Tubificidae are recorded from the Canary Islands, viz. Heterodrilus amplus n. sp., Coralliodrilus leviatriatus Erséus, 1979, Limnodriloides agnes Hrabě, 1967, L. janstocki n. sp., Aktedrilus cuneus Erséus, 1984, A. parvithecatus (Erséus, 1978), and Tubifex tubifex (Müller, 1774); the two latter taxa are reported also from the Cabo Verde Islands. All taxa except T. tubifex are marine and there is no evidence of endemism in the freshwater oligochaete fauna of these islands. Heterodritus amplus has short, spindle-shaped, heavily muscular atria; they are morphologically unique within the genus. Limnodriloides janstocki has modified spermathecal setae; it is distinguished from similar species by its long atrial ducts and deep, elaborate copulatory sacs.
Three new epigean representatives of Roncus L. Koch, 1873 (Neobisiidae, Pseudoscorpiones), from the Balkan Peninsula
Authors: Ćurčić Božidar P.M. , Ćurčić Srećko B. , Ćurčić Nina B. , Makarov Slobodan E.
Published: May 2019

Two species and one subspecies of Roncus L. Koch, 1873, new to science (R. tintilin n. sp., R. trojan n. sp., and R. trojan strahor n. ssp.), collected in eastern and southeastern Serbia, Yugoslavia, are described, diagnostic characters are illustrated, and their distribution is given.
Ten new species of Troglopedetes Absolon, 1907 from caves of Thailand (Collembola, Paronellidae)
Authors: Deharveng L. , Gers C.
Published: May 2019

Ten new species of Troglopedetes are described from caves of Thailand. The large variability found in some classical specific characters is discussed, and the interest of the macrochaetotaxic pattern is emphasized. A key to Thai species of the genus is given.
Collocherides bleptus n. sp. (Copepoda: Siphonostomatoida) associated with an intertidal ophiuroid in Madagascar
Authors: Humes Arthur G.
Published: May 2019

Collocherides bleptus n. sp. is associated with a brittle star, Macrophiothrix sp., at Nosy Bé, in northwestern Madagascar. The new copepod differs from its two congeners by its larger size and by having leg 5 in the female with an elongate distal segment bearing only two setae.
Arthropod pattern theory and Cambrian trilobites
Authors: Sundberg Frederick A.
Published: May 2019

An analysis of duplomere ( = segment) distribution within the cephalon, thorax, and pygidium of Cambrian trilobites was undertaken to determine if the Arthropod Pattern Theory (APT) proposed by Schram & Emerson (1991) applies to Cambrian trilobites. The boundary of the cephalon/thorax occurs within the predicted duplomere node 1 (duplomeres 4 or 6). The boundary between the thorax and pygidium generally occurs within node 2 (duplomeres 11–13) and node 3 (duplomeres 18–20) for corynexochids and ptychopariids, respectively. This boundary occurs within field 4 (duplomeres 21–n) for olenellids and redlichiids. The termination of the body generally occurs within node 3 for corynexochids and within field 4 for olenellids, redlichiids, and ptychopariids. In addition, the location of macropleural spines, which may indicate the location of the gonopores or anus, generally falls at the predicted duplomeres. The boundary between the prothorax and opisthothorax of olenellids occurs within or near node 3. These results indicate that the number and distribution of duplomeres within Cambrian trilobites were somewhat constrained by some genetic patterning program. However, the common distribution of boundaries outside of the predicted locations and the possible shifting of nodes suggest that other factors were also controlling the number of duplomeres within the body parts. This variation supports the idea that Cambrian arthropods, unlike modern arthropods, had a simpler genetic program, which easily allowed for changes in the Bauplan.