Opisa

• Main Authors: Narahara-Nakano, Yukiko, Kakui, Keiichi, Tomikawa, Ko
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Opisidae; Opisa; Arctic; Canada
• Online Access: https://dx.doi.org/10.5281/zenodo.6068957; https://zenodo.org/record/6068957

Key to the species of Opisa modified from Bousfield (1987) 1 Posterior margin of epimeral plate 3 crenulated or denticulated; outer plate of maxilliped almost reaching distal margin of palp article 3............................................................................................................................................................................ O. tridentata - Posterior margin of epimeral plate 3 smooth; outer plate of maxilliped not reaching distal margin of palp article 3...................... 2 2 Dactylus of gnathopod 1 short, nearly straight, posterior margin dentate; palm of propodus of gnathopod 1 straight, lined with close-set “palisade” robust setae; rami of uropod 3 without marginal setae............................................................... O. odontochela - Dactylus of gnathopod 1 large, strongly curved, posterior margin smooth; palm of propodus of gnathopod 1 concave, with few slender setae.......................................................................................................................................................................................3 3 Lacinia mobilis of left mandible developed; posterior lobe of coxa 5 weakly developed; inner ramus of uropod 2 with robust setae ......................................................................................................................................................................................... O. eschrichti - Lacinia mobilis of left mandible vestigial; posterior lobe of coxa 5 well developed; inner ramus of uropod 2 without robust setae................................................................................................................................................................ O. takafuminakanoi sp. nov. : Published as part of Narahara-Nakano, Yukiko, Kakui, Keiichi & Tomikawa, Ko, 2016, Opisa takafuminakanoi, a new species of Opisidae from Hokkaido, Japan (Crustacea: Amphipoda), pp. 335-339 in Zootaxa 4200 (2) on page 338, DOI: 10.11646/zootaxa.4200.2.9, http://zenodo.org/record/182285 : {"references": ["Bousfield, E. L. (1987) Amphipod parasites of fishes of Canada. Canadian Bulletin of Fisheries and Aquatic Sciences, 217, 1 - 37. Derzhavin, A. (1929) [Arctic elements in the fauna of peracarids of the Sea of Japan]. Russische hydrobiologische Zeitschrift, 8, 326 - 329. [In Russian]"]}