Oedicerina Stephensen, 1931

Coleman, Charles Oliver & Thurston, Michael H., 2014, A redescription of the type species of Oedicerina Stephensen, 1931 (Crustacea, Amphipoda, Oedicerotidae) and the description of two new species, Zoosystematics and Evolution 90 (2), pp. 225-247 : 225-226

Oedicerina Stephensen, 1931

Oedicerina Stephensen, 1931: 250. - Barnard and Karaman 1991: 561, - Ledoyer 1986: 832. - Hendrycks and Conlan 2003: 2359.

Diagnosis (key characters embolded).

Rostrum well-developed, moderately to strongly deflexed. Antennae sexually dimorphic or not, length medium. Antenna 1 about as long as head and pereonites 1-4 combined, peduncle article 1 longer than articles 2 and 3. Antenna 2 subequal to or weakly longer than antenna 1; peduncle article 4 longer than article 5. Lower lip, inner lobes prominent, separate. Mandible, molar triturative; incisor 5-dentate. Maxilla 1, outer fig 9-dentate; palp slender, article 2 subequal to or longer than article 1. Maxilla 2, figs short, inner broader than outer. Maxilliped, palp article 2 sub-triangular, breadth greatest at half-length, inner margin strongly convex; article 3 produced mediodistally; article 4 longer than article 3.

Coxal figs 1-4 deep, as long or longer than height of corresponding pereonite. Gnathopod 1, coxa expanded distally; carpus and propodus subequal in length, strongly expanded posterodistally. Gnathopod 2, carpus longer than propodus, both strongly expanded posterodistally. Pereopods 3 and 4 fossorial (setose); coxa 4 deeply excavate posteriorly, posterodistal lobe strong, subrectangular. Pereopod 5, coxa bilobate, posterior lobe as long as coxa 4. Pereopod 6, coxa bilobate, posterior lobe strong. Pereopod 7, basis expanded.

Pleonites, some or all carinate or toothed. Epimera 1-3, 1 and 3 rounded, 2 obtusely rounded, posterior margin convex or sinuous. Uropods 1-2, outer ramus subequal to or shorter than inner ramus. Uropod 3, peduncle short; rami subequal, not extending as far as apices of uropods 1-2. Telson notched 30-40%, apices acute.

Type species.

Oedicerina ingolfi Stephensen, 1931

Species composition.

Oedicerina denticulata Hendrycks & Conlan, 2003; Oedicerina ingolfi Stephensen, 1931; Oedicerina loerzae sp. n.; Oedicerina megalopoda Ledoyer, 1986; Oedicerina vaderi sp. n.

Key to the species of Oedicerina