Filitanais elongatus Segadilha & Dos Santos & Serejo 2017, sp. nov.

• Main Authors: Segadilha, Juliana L., Dos Santos, Kátia C., Serejo, Cristiana S.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Tanaidacea; Colletteidae; Filitanais; Filitanais elongatus; Antarc*; Antarctica; Bransfield Strait
• Online Access: https://doi.org/10.5281/zenodo.3851725

Filitanais elongatus sp. nov. urn:lsid:zoobank.org:act: 2BB6 BAF 1-E2AC-4EA3-8EED-BC62C46F296A Figs 1–3 Diagnosis (based on females) Body about 13 times longer than wide; pereonite 2 four times longer than pereonite 1; pereopod 1–3 carpus with three spiniform setae distally and propodus with one spiniform ventral seta; pereopod 1–6 ischium without seta; pleon about 0.6 times as long as pereon; pleotelson square, as long as wide; uropod as long as pleotelson; uropod exopod longer than first article of endopod. Etymology The specific epithet refers to the long second pereonite, about four times longer than the first pereonite in species of Filitanais . Material examined Holotype ANTARCTICA: ♀, dissected, adult non-ovigerous, length 1.9 mm, Bransfield Strait, station #2, 62º17′33.4″ S, 58º18′12.6″ W, 1.147 m deep, 6 Dec. 2008 (MNRJ 24443). Paratype ANTARCTICA: 1 ♀, adult non-ovigerous, length 1.8 mm, other data as for the holotype (MNRJ 26238). Description BODY (Fig. 2). About 13 times as long as wide. Cephalothorax oval, 1.6 times as long as wide; eyelobes absent. Pereonites 2–6 longer than wide. All pereonites with lateral setae. Pereonite 1 shortest, about 0.6 times longer than wide. Pereonite 2 longest, about 1.8 times as long as wide. Pereonite 3 as long as pereonite 4, about 1.4 times as long as wide. Pereonite 5 slightly longer than pereonite 6, both about 1.3 times as long as wide. Pleon (Fig. 2) long, about 30% of body length. All pleonites sub-equal in size, with first two pleonites slightly longer than others (0.7 and 0.6 times longer than wide). Pleonite 5 with lateral simple seta. Pleotelson square, about as long as wide, with dorsal plate not covering uropods; one pair of lateral and one pair of terminal simple setae. Apex pointed. ANTENNULE (Fig. 2). With four articles, slightly shorter than cephalothorax. Article 1 longest, about 2.3 times as long as wide, with one simple and four penicillate outer setae. Article 2 about 1.4 times as long as wide, one inner distal penicillate seta and one simple and ...