Paracerapus polutovi

• Main Authors: Lowry, J. K., Berents, Penelope B.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 1996
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Ischyroceridae; Paracerapus; Paracerapus polutovi; Bering Sea; Seta; Kamchatka
• Online Access: https://doi.org/10.5281/zenodo.4659275; http://treatment.plazi.org/id/E05A87B1FFBAB14E14FA7C04FC364D42

Paracerapus polutovi (Gurjanova) Figs 19 - 21 Cerapus polutovi Gurjanova, 1951: 946, fig. 658. Paracerapus polutovi. Budnikova, 1989: 54. ? Cerapus comparativus Kudrjashov, 1975: 364, fig. 1. ? Paracerapus comparativus. Budnikova, 1989: 54. Type data. PARATYPES, male, 6.2 mm, AM P41691, female, 6.1 mm, male, AM P41692, East Kamchatka, Bering Sea, 20-29 m, 13 July 1934, stn 539. Material described. Based on paratype male, 6.2 mm; dimorphic characters based on paratype female, 6.1 mm. Diagnosis. Antennae: short, slender. Mandible: palp article 2 article 2 short, broad, length 1.8 x breadth, article 3 broad, clavate. Maxilla 1: outer plate with 10 setal-teeth. Gnathopod 2: male propodus broad, slightly curved, length 2.4 x width. Peraeopod 7: dactylus with row of accessory spines. Pleopod 2: biramous. Pleopod 3: biramous. Description. Head: rostrum very short, straight, apically rounded; lateral cephalic lobe well developed, ventral corner rounded, subocular margin deeply recessed, anteroventral corner subquadrate, ventral margin horizontal, posterior margin vertical. Antenna 1: short, 0.27 x body length, without scales; peduncular article 1 with very weak keel, length 0.7 x peduncular article 3; accessory flagellum absent; flagellum long, 5-articulate (female 5), aesthetascs absent, article 1 long, 2 x article 2. Antenna 2: subequal in length to antenna 1; peduncle without scales; flagellum 5-articulate (female 6), article 1 long, 2.2 x article 2. Epistome and upper lip: fused. Mandible: left incisor with 4 cusps, right incisor with 4 cusps; left and right lacinia mobilis each with 4 cusps; left accessory setal row with 4 pappose robust setae, with 2 intermediate plumose setae, right accessory setal row with 4 pappose robust setae, with 3 intermediate plumose setae; molar triturating, molar flake on left and right side, molar seta only on right side; palp article 2 short, broad, length 1.8 x breadth, 1 x article 3 with 1 proximal A2-seta, with 5 posterior submarginal A2-setae, with 3 proximal and 10 posterior ...