Tryphosa Boeck 1871

• Main Authors: Kilgallen, N. M., Lowry, J. K.
• Format: Text
• Language: unknown
• Published: Zenodo 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Lysianassidae; Tryphosa; Southern Ocean; Seta; Lowry; Chevreux; Christiania; Northeast Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.4909758; https://zenodo.org/record/4909758

Tryphosa Boeck, 1871 Tryphosa Boeck, 1871: 117.― Stephensen, 1925: 101 (in part). Orchomene .― Barnard & Karaman, 1991: 507 (in part). Tryphosella .―J.L. Barnard, 1969: 365 (in part). Type species. Anonyx nanus Krøyer, 1846a, by monotypy. Included species. Tryphosa includes two species: T. crenata (Chevreux & Fage, 1925); T. nana (Krøyer, 1846a). Diagnostic description. Antenna 1 flagellum article 1 lacking robust seta on distal margin; accessory flagellum forming cap. Antenna 2 flagellum article 5 slender (with dense brush setae on the anterior margin). Mandibular incisor slightly curved; molar a reduced column with convex triturating surface (button); palp attached midway. Maxilla 1 ST-7 serrate along most of curved medial margin; ST-D slender, serrate along the entire curved medial margin. Maxilliped outer plate apical setae present. Gnathopod 1 subchelate; coxa large, nearly as long as coxa 2, not tapering; carpus slightly shorter than propodus; propodus palm slightly acute, straight. Pereopod 4 coxa with well developed posteroventral lobe. Uropod 2 inner ramus constricted. Uropod 3 rami with plumose setae in male and female; inner ramus broad, lanceolate. Telson deeply cleft. Remarks. See d’Udekem d’Acoz & Havermans (2012) for a comprehensive summary of the historical taxonomic and nomenclatural treatment of Tryphosa . Tryphosa is easily separated from Orchomenella , with which it has long been associated, by the constricted inner ramus on uropod 2. Distribution. Northeast Atlantic, Mediterranean Sea, Adriatic Sea. : Published as part of Kilgallen, N. M. & Lowry, J. K., 2014, The Tryphosa group (Crustacea: Amphipoda: Lysianassoidea: Lysianassidae: Tryphosinae), pp. 501-545 in Zootaxa 3768 (5) on pages 536-537, DOI: 10.11646/zootaxa.3768.5.1, http://zenodo.org/record/4909684 : {"references": ["Boeck, A. (1871) Crustacea Amphipoda Borealia et Arctica. Forhandlinger i Videnskabs-Selskabet i Christiania, 1870, 83 - 280.", "Stephensen, K. (1925) Crustacea Malacostraca, VI: (Amphipoda, II). Danish Ingolf-Expedition, 3, 101 - 178.", "Barnard, J. L. & Karaman, G. S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Records of the Australian Museum, Supplement, 13, 1 - 866. http: // dx. doi. org / 10.3853 / j. 0812 - 7387.13.1991.367", "Barnard, J. L. (1969) The families and genera of marine gammaridean Amphipoda. Bulletin of the United States National Museum, 271, 1 - 535, 173 figs.", "Kroyer, H. (1846 a) Karcinologiske Bidrag (Fortsaettelse). Naturhistorisk Tidsskrift, 2, 1 - 211, pls 1, 2. [not seen]", "Chevreux, E. & Fage, L. (1925) Amphipodes. Faune de France, 9, 1 - 488.", "D'Udekem d'Acoz, C. & Havermans, C. (2012) Two new Pseudorchomene species from the Southern Ocean, with phylogenetic remarks on the genus and related species (Crustacea: Amphipoda: Lysianassoidea: Lysianassidea: Tryphosinae). Zootaxa, 3310, 1 - 50."]}