Abaddon Derkarabetian &amp; Baker &amp; Hedin &amp; Prieto &amp; Giribet 2021, gen. nov.
Creators: name: Derkarabetian, Shahan
name: Baker, Caitlin M.
name: Hedin, Marshal
name: Prieto, Carlos E.
name: Giribet, Gonzalo
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Opiliones
Triaenonychidae
Abaddon

description: Genus <i>Abaddon</i> Derkarabetian &amp; Baker, gen. nov. (Fig. 6, 7 <i>A</i>, S 4) ZooBank LSID: urn:lsid:zoobank.org:act: 3575B6CE-740A-45AB-8892-31195A50F4A0 <i>Type species</i>: <i>Abaddon despoliator</i> Derkarabetian, sp. nov., by monotypy. <i>Diagnosis</i> This genus is very distinctive and can be easily distinguished from <i>Lomanella</i>, and all triaenonychids known from Western Australia, based on its highly tuberculate <i>–</i> spiny body (Fig. 6, S 4). Compared to <i>Lomanella</i>, it has a penis with large lateral wing-like laminae, an elongate and tubular stylus rising directly from the sensillar region (sensillenträger of Martens 1986), without dorsal or ventral plates. <i>Description</i> Eye mound recessed from the anterior margin of the carapace, tuberculate and heavily pigmented (Fig. 6 <i>A</i>, <i>B</i>). Anterior margin of carapace with large anteriorly directed spines, the medial spine being the largest (Fig. 6 <i>A</i>, <i>B</i>). Dorsal scutum outline in dorsal view outline Eta H of Kury and Medrano (2016), with a slight widening at the midline. Body densely covered in brown pigmented tubercles except along lateral margins, with lateral projections above coxae II associated with ozopores (Fig. 6 <i>A</i>, <i>B</i>). Each scutal segment with a row of large spines, generally increasing in number posteriorly. Coxae II with an elongate dorsal tubercle associated with ozopore; coxae IV with a small pigmented area dorsally (Fig. 6 <i>A</i>, <i>B</i>). Ventral surface of body tuberculate; leg I coxae with a series of elongate tubercles along prolateral margin; sternum long and narrow (Fig. S4 <i>B</i>). Genital operculum subtriangular and tuberculate. Pedipalps without heavy spination, one spine-bearing tubercle ventrally on the femur, tarsus with an elongate claw and elongate spines terminally (Fig. 6 <i>E</i>). Leg I femur with a series of elongate dorsal and ventral tubercles bearing setae (Fig. 6 <i>C</i>, <i>D</i>). Leg coxae tuberculate, legs with rows of longitudinal tubercles. Tarsal formula 2,2,3,3. Penis without dorsal or lateral plates; with large lateral wing-like laminae; stylus elongate, thin, and tubular, arising directly from the sensillar region (Fig. 7 <i>A</i>). <i>Etymology</i> The genus name is in reference to the fictional character ‘ Abaddon the Despoiler’ from the Warhammer 40 000 tabletop miniature game and science fiction universe developed by Games Workshop, which is a favourite hobby of the first author. The character is typically portrayed adorned with spikes and various sharp things. The name should be treated as masculine.
description: Published as part of <i>Derkarabetian, Shahan, Baker, Caitlin M., Hedin, Marshal, Prieto, Carlos E. &amp; Giribet, Gonzalo, 2021, Phylogenomic re-evaluation of Triaenonychoidea (Opiliones: Laniatores), and systematics of Triaenonychidae, including new families, genera and species, pp. 277-288 in Invertebrate Systematics 167 (1)</i> on pages 141-142, DOI: 10.1071/is20047, http://zenodo.org/record/4531309
description: {"references": ["Martens, J. (1986). Die Grossgliederung der Opiliones und die Evolution der Ordnung (Arachnida). In ' Actas del X Congreso Internacional de Arachnologia', Jaca, Spain. Vol. 1, pp. 289 - 310. (Juvenil: Barcelona, Spain.)", "Kury, A. B., and Medrano, M. (2016). Review of terminology for the outline of dorsal scutum in Laniatores (Arachnida, Opiliones). Zootaxa 4097, 130 - 134. doi: 10.11646 / zootaxa. 4097.1.9"]}