Gooday, 1976
Diagnosis
Carapace with dorsal margin almost straight, and ventral margin curving smoothly into the posterior margin, with a slight concavity in both sexes (C. subedentata Habitus 1, C. subedentata Habitus 3). A large median gland is situated in the centre of the concavity. Right asymmetrical gland opens one third height up posterior margin.
In both sexes, frontal organ clearly differentiated, but only in male is it down-turned (C. subedentata 3). First antennae all setae are as long or longer than the limb. Male first antenna, "e" seta armature 17-22 low bumps with small proximally pointing spines (C. subedentata 4). Females have exceptionally long terminal setae on their sixth limbs superficially giving them a masculine appearance.
Remarks
This species is one of a species complex which constituted Müller's, 1906 edentata group. Gooday, 1976 redescribed the North Atlantic species in this group, which under Poulsen's (Poulsen, 1973) classification would be attributed to the genus Gaussicia. This is a widely distributed species which is seldom common, but can be expected to be found in other oceans, eventually.
Distribution
Mesopelagic. Pacific and North Atlantic 18°-60°N, more common >40°N. 1, 2, 3 (R.R.S. Discovery Map).
Type specimens
Holotype, a male stained with lignin pink and mounted on slides in "Euparal" is deposited in the British Museum (Natural History) No. 1974.736. Paratype material is similarly deposited (BM(NH) 1979.737-748).
Type locality
Discovery Station 7711 Haul 23. 52°57.1N, 20°W to 52°53.1'N, 20°03.4'W; depth 200-300m; date 19-20 May 1971; time 2342-0142h; gear RMT1.