. b a Fig. 99. Oradarea tricarinata, a. Peraeon segments 6 and 7 and pleon segments 1-3. b. Telson. margin serrulate. Telson subquadrangular, broad, apex truncate, with some minute irregular crenulations. Epistome and upper lip gibbous and subcarinate. Antenna 1 with 1-jointed accessory flagellum. Gnathopods 1 and 2, 6th joint as in tridentata. Peraeopods 3-5, 2nd joint with hind margin feebly serrulate. The single specimen from St. 144 has a dorsal tooth and a lateral tooth on each side on peraeon segment 6 as well as on segment 7, but is otherwise exactly similar to those from St. 175.
. b a Fig. 99. Oradarea tricarinata, a. Peraeon segments 6 and 7 and pleon segments 1-3. b. Telson. margin serrulate. Telson subquadrangular, broad, apex truncate, with some minute irregular crenulations. Epistome and upper lip gibbous and subcarinate. Antenna 1 with 1-jointed accessory flagellum. Gnathopods 1 and 2, 6th joint as in tridentata. Peraeopods 3-5, 2nd joint with hind margin feebly serrulate. The single specimen from St. 144 has a dorsal tooth and a lateral tooth on each side on peraeon segment 6 as well as on segment 7, but is otherwise exactly similar to those from St. 175. Both specimens from St. 172 show a short obtuse dorsal point on peraeon segment 6 and the lateral teeth are not so well developed as in the other specimens. Oradarea impressicauda, (Figs. 96 c, 100). Occurrence: St. 170. South Shetlands. 1 y 15 mm. Inscription. Integument sculptured as in tridentata, rather strongly so, the pits tending to form transverse lines on the pleon, the pitting extending on to 2nd joints of peraeopods 35. Post-antennal angle of head acutely produced. Eyes subcircular, rather
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
