Antatelson claudei Krapp-Schickel, 2011, sp. nov.

• Main Author: Krapp-Schickel, Traudl
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Stenothoidae; Antatelson; Antatelson claudei; Antarc*; Antarctic
• Online Access: https://doi.org/10.5281/zenodo.5542368; http://treatment.plazi.org/id/03E04720AE6DB521FDB3F93DFB185D2A

Antatelson claudei sp. nov. Figs 8-9 Holotype 1 ovigerous ♀ 2.5 mm; NHMUK 2011. 8034. RRS James Clark Ross , cruise JR144 (BIOPEARL I), stn JR 144 SR-EBS-4-E, Shag Rocks, 53°62'S 40°91'W, 11-04-2006, 201- 205 m, gear: epibenthic sledge, 4 Epi-net, (slide deposited at the Natural History Museum, London). Additional 5 specimens sex? 2.1- 1.2 mm in alcohol, same locality (Natural History Museum, London). Etymology Dedicated to Claude De Broyer (Brussels) for his strenuous and tireless effort on the studies of Antarctic amphipods. Description HABITUS. Dorsal outline with single tubercles and humps on the mediodorsal body line, with one at the head, some 3-5 irregular ones on the peraeon, and always acute prolongations on all three urosomites. These dorsal body parts are reinforced with knobs. In dorsal view, the body has a nearly right - angled keel laterally along both sides, thus the cross section would be a rhomboid with a much smaller extent in the upper part than in the lower one. HEAD. A1 subequal to somewhat shorter A2. A1 ped. art. 1 with huge nasiform process, ratio art. 2> art. 3; flagellum with about 10 arts. A2 arts. 2 and 3 short and wide, art. 4 = art. 5, flagellum with 8-9 arts. Mouthparts: No difference found to those in other species of this genus. GNATHOPODS. Gn1 much smaller than Gn2. Cx1 subquadrate. Basis robust, no setae found; ischium subquadrate, naked. Merus beset with short and stiff setae posteriorly; carpus triangular, on posterior margin beset with few longer setae. Propodus about twice as long as wide, on both margins with a few longer setae, palm weakly rounded without well defined palmar corner, but defined by short spines. Gn2 larger, but also not strong. Cx2 tongue-shaped, longer than wide, anterior margin somewhat rounded, posterior one straight. Basis more than 5 times longer than wide, anterior margin beset with a few fine setae distally, only few setae on posterior margin; ischium longer than wide, with groups of setae as on merus. Carpus triangular, about as long as wide, ...