Abyssorchomene abyssorum Schellenberg 1926

Autor: Hendrycks, Ed A., Broyer, Claude De
Rok vydání: 2022
Předmět:
DOI: 10.5281/zenodo.6687357
Popis: Key to the species of the Abyssorchomene abyssorum complex 1. Pereonites 1–7 and pleonites 1–2 with weak but distinct dorsoposterior rounded hump; epistome level with upper lip; uropod 3 inner ramus extends well past distal end of article 1 of uropod 3 outer ramus; maxilla 1 palp distal end weakly convex, with distal spines contiguous............................... 2 – Pereonites 1–7 and pleonites 1–2 lacking dorsoposterior rounded hump; epistome weakly but distinctly protruding in front of upper lip (or level with upper lip); uropod 3 inner ramus just reaches (or very slightly exceeds) distal end of article 1 of uropod 3 outer ramus; maxilla 1 palp distal end strongly convex, with distal spines not contiguous.......................................... A. scotianensis (Andres, 1983) 2. Coxa 1 slightly widened distally, ~ 1.2× proximal width; gnathopod 2 propodus of female narrow, (similar in form to male), length ~ 2.5× width, palm lacking concavity; uropod 3 inner ramus extends to ~ 70% of the length of article 2 of uropod 3 outer ramus.............. A. abyssorum (Stebbing, 1888) – Coxa 1 strongly widened distally, ~ 1.3–1.7× proximal width; gnathopod 2 propodus of female broad, (different in form to narrow male propod), length A. shannonae sp. nov. – Coxa 5 posteroventral lobe narrowly rounded, posterior margin with distinct straight section; lateral head lobe, dorsal margin strongly convex, ventral margin nearly straight with slight concavity at the midpoint; gnathopod 2 propodus of female with anterodistal margin not expanded and protruding, dactylus large, inserted at the top of the distal margin; gnathopod 2 propod of male not expanded, narrow, dorsal margin smoothly convex; pereopod 7 basis posteroventral corner shallowly and weakly beveled; uropod 3 inner ramus extends to ~ 63% of article 2 of uropod 3 outer ramus................................................................................................................................................... A. patriciae sp. nov.
Published as part of Hendrycks, Ed A. & Broyer, Claude De, 2022, New deep-sea Atlantic and Antarctic species of Abyssorchomene De Broyer, 1984 (Amphipoda, Lysianassoidea, Uristidae) with a redescription of A. abyssorum (Stebbing, 1888), pp. 1-76 in European Journal of Taxonomy 825 on page 68, DOI: 10.5852/ejt.2022.825.1829, http://zenodo.org/record/6686625
{"references":["Andres H. G. 1983. Die Gammaridea (Crustacea: Amphipoda) der Deutschen Antarktis-Expeditionen 1975 / 76 und 1977 / 78. 3. Lysianassidae. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 80: 183 - 220.","Stebbing T. R. R. 1888. Report on the Amphipoda collected by H. M. S. Challenger during the years 1873 - 1876. Report on the Scientific Results of the Voyage of H. M. S. Challenger during the years 1873 - 76. Zoology 29: 1737, plates 1 - 212."]}
Databáze: OpenAIRE
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