Sophrosyne antarctica Ren 1991

• Main Authors: Lowry, J. K., Stoddart, H. E.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Sophrosynidae; Sophrosyne; Sophrosyne antarctica; Seta; South Shetland Islands; Southern Ocean; Antarc*; Antarctica; ren
• Online Access: https://zenodo.org/record/5777796; https://doi.org/10.5281/zenodo.5777796

Sophrosyne antarctica Ren, 1991 Sophrosyne antarctica Ren in Ren & Huang, 1991: 249, 308, fig. 39. — De Broyer & Jazdzewski, 1993: 15, 75. — De Broyer et al., 2007: 159. Type locality. South Shetland Islands, Southern Ocean (62°50.6'S 60°20.5'W), 860 m. Diagnostic description. Head lateral cephalic lobe small, narrowly rounded; eyes apparently absent. Antenna 1 peduncular article 1 short, length 1.3 x breadth; accessory flagellum long, 0.5 x primary flagellum, article 1 long, 2.6 x article 2; flagellum 7-articulate, without callynophore. Antenna 2 peduncular article 3 0.5 x article 4; flagellum 6-articulate. Mandible incisors with straight margins; palp article 2 slender, 1.1 x article 3, without A2-setae, without D2-setae, article 3 length 4.8 x breadth, without D3-setae, with 4 apical E3- setae. Maxilla 1 outer plate with setal-teeth in a 2/1 arrangement . Maxilla 2 inner plate narrow, outer plate broader; inner plate length 0.56 x outer plate. Maxilliped inner plate subrectangular, without apical nodular robust setae; outer plate submarginal setae absent; palp article 2 slender, length 2.4 x breadth, 1.1 x article 3, article 3 slender, length 2.4 x breadth, dactylus with unguis absent. Gnathopod 1 basis length x breadth unknown, anterior margin with slender setae; ischium length 1 x breadth; merus, posterior margin with a few slender setae; carpus length 0.5 x propodus; propodus length 1.7 x breadth, posterior margin subtly sinusoidal, with simple, slender setae, palm margin straight, posterodistal corner with produced subacute spine bearing vestigial seta. Gnathopod 2 minutely subchelate; ischium length 3 x breadth; carpus long, length 3.5 x breadth, posterior margin straight; propodus subrectangular, long, length 2.5 x breadth; palm slightly acute, with concave, smooth margin. Pereopod 3 merus weakly expanded anteriorly. Pereopod 4 merus not expanded anteriorly. Pereopod 5 basis moderately expanded posteriorly; merus slightly expanded posteriorly. Pereopod 6 coxa small, not lobate posteriorly; merus ...