Quasimelita Jarrett & Bousfield, 1996 (Jarret & Bousfield 1996

• Main Author: Labay, Vjacheslav S.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Melitidae; Quasimelita; Arctic; Pacific; Seta; Murdoch; Sneli; North Atlantic
• Online Access: https://zenodo.org/record/5677641; https://doi.org/10.5281/zenodo.5677641

Genus Quasimelita Jarrett & Bousfield, 1996 (Jarret & Bousfield, 1996: 36) Melita Stebbing, 1906: 421 (part).— Gurjanova, 1951: 748, 751 (part).— Karaman, 1981: 41 (part).— Barnard & Barnard, 1983: 664 (part). Abludomelita Karaman, 1981: 40 (part). Type species. Melita quadrispinosa Vosseler, 1889: 157. Species. Including the new species described here, Quasimelita contains five species in the North Pacific (Jarret & Bousfield 1996, new data): Q. formosa (Murdoch, 1885), Q. quadrispinosa (Vosseler, 1889), Q. jarettii sp. nov., Q. serraticoxae sp. nov. and Q. tolyza sp. nov. Q. formosa and Q. quadrispinosa are widely distributed across the Siberian and Canadian Arctic region and in the North Pacific region to Japan. Q. abyssorum (Stephensen, 1944) was described only from North Atlantic and near Arctic (Palerud, Gulliksen, Brattegard, Sneli, J.-A. & Wim Vader, 2004; Stephensen, 1944; Vosseler, 1889). Diagnosis (from Jarret & Bousfield 1996, with additions). Pereon segments without dorsal teeth and denticles. Pleon toothed to smooth dorsally. Urosome segment 1 usually with dorsal tooth (or one large central tooth and two lateral small teeth). Urosome 2 with dorsal teeth (usually paired) and with single strong seta on each side. Head, anterior lobe usually rounded (or truncated), inferior antennal sinus broadly notched. Antenna 1 regular, peduncular segment 3 short; antenna 2 slightly or much shorter than antenna 1. Upper lip shallow notched. Lower lip regular, inner lobes large. Mandible, raker setae row short, with numerous blades (7–13 +); left lacinia 4 -dentate, right lacinia 3 -dentate; incisor irregulary dentate, palp segment 1 short, with acute medial process or not. Maxilla 1, inner plate triangular, usually weakly setose medially; outer plate with 9 apical tooth setae (Watling type III. 1) (Watling 1989); palp segment 1 with lateral setae; segment 2 apically spinose and setose. Maxilla 2, inner plate usually with few facial setae, submarginally positioned. Maxilliped, inner plate ...