Aristias excavatus Kilgallen, 2010, sp. nov. ...

• Main Author: Kilgallen, Niamh M.
• Format: Text
• Language: unknown
• Published: Zenodo 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Aristiidae; Aristias; Aristias excavatus; Antarc*; Antarctic; Antarctica; Ross Sea
• Online Access: https://dx.doi.org/10.5281/zenodo.5674682; https://zenodo.org/doi/10.5281/zenodo.5674682

Aristias excavatus sp. nov. (Figs 1–4) Type material. Holotype, male 10.25 mm, NIWA 58157, Ross Sea, 76º45.54’S, 167º49.33’E, 724–752 m, taken from the sponge Myxodoryx hanitschi (Kirkpatrick, 1907) (Demospongiae, Poecilosclerida, Myxillidae) (NIWA 36399), bottom fishing trawl, TAN 0802/ 70, 15 February 2008. Etymology. The specific name, excavatus, Latin, refers to the excavate anterior margin of the lateral cephalic lobes. Diagnosis. Lateral cephalic lobes broadly rounded, distinctly excavate along anterior margin; eyes apparently absent. Epistome and upper lip bounded by slight slit, upper lip projecting in front of epistome. Gnathopod 2 coxa well developed. Pereopod 3 coxa slightly expanded distally. Pereopods 5–7 with small spurs on anterodistal corner of propodus; coxa 5 and 6 producing posterior lobe, narrowly rounded ventrally. Epimeron 3 posterior margin smooth. Uropod 3 rami subequal in length; outer ramus article 2 more than half the length of article 1. Telson deeply cleft to 65% of length, lobes ... : Published as part of Kilgallen, Niamh M., 2010, A new Antarctic species of Aristias Boeck (Crustacea, Amphipoda, Aristiidae), with remarks on the genus in Antarctica, pp. 43-53 in Zootaxa 2426 on pages 45-51, DOI: 10.5281/zenodo.293998 ...