Metambasia Stephensen 1923

• Main Authors: Kilgallen, N. M., Lowry, J. K.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Lysianassidae; Metambasia; Lowry; Seta; North Atlantic
• Online Access: https://zenodo.org/record/4909702; https://doi.org/10.5281/zenodo.4909702

Metambasia Stephensen, 1923 Metambasia Stephensen, 1923: 76.― Dahl, 1959: 217.―J.L. Barnard, 1969: 304, 306, 309, 311, 315 (keys), 350.― Barnard & Karaman, 1991: 503. Type species. Metambasia faeroensis Stephensen, 1923, by monotypy. Included species. Metambasia includes one species: M. faeroensis Stephensen, 1923. Diagnostic description. Antenna 1 flagellum article 1 lacking robust seta on distal margin; accessory flagellum forming cap. Antenna 2 flagellum articles 3–5 slender in female, article 3 enlarged in male; articles 4–5 without brush setae on the anterior margin. Mandibular incisor slightly curved; molar with reduced column and convex triturating surface (button); palp attached midway. Maxilla 1 ST-7 serrate along the entire curved medial margin; ST-D slender, apically cuspidate. Maxilliped outer plate with apical robust setae. Gnathopod 1 parachelate; coxa vestigial; carpus longer than propodus; propodus palm minute, acute. Pereopod 4 coxa with well developed posteroventral lobe. Uropod 2 inner ramus constricted. Uropod 3 rami plumose setae present in male, absent in female. Telson moderately cleft. Remarks. See remarks under Glorieusella. Distribution. North Atlantic Ocean. 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 page 509, DOI:10.11646/zootaxa.3768.5.1, http://zenodo.org/record/4909684