. Proboloides antarcticus, Wlkr. (Fig. 58). Walker, 1907, p. 18, pi. v, fig. 9 (gn. 2 <$, labelled in error "gn. 2 ?"). Occurrence: St. 195. South Shetlands. 1 <J 7 mm. Remarks. Agrees with Walker's figure of the <$, except that the hand of gnathopod 2 is longer, equal to the length of the 2nd joint, and the conical tooth is midway in the palmar excavation between the square- topped crenate tooth near hinge and the defining tooth. Anterior margin of 2nd and 3rd joints of gnathopod 2 channelled, with strong distal lobes. Side-plate 3 with beaded margin as in the other species
. Proboloides antarcticus, Wlkr. (Fig. 58). Walker, 1907, p. 18, pi. v, fig. 9 (gn. 2 <$, labelled in error "gn. 2 ?"). Occurrence: St. 195. South Shetlands. 1 <J 7 mm. Remarks. Agrees with Walker's figure of the <$, except that the hand of gnathopod 2 is longer, equal to the length of the 2nd joint, and the conical tooth is midway in the palmar excavation between the square- topped crenate tooth near hinge and the defining tooth. Anterior margin of 2nd and 3rd joints of gnathopod 2 channelled, with strong distal lobes. Side-plate 3 with beaded margin as in the other species. Contrary to the opinion expressed in the Terra Nova Report, I now think that perlatus will prove to be a form distinct from antarcticus, and that both are distinct from crenatipalmatus. Distribution. McMurdo Sound. Proboloides carinata (Schell.) (Fig. 59). Schellenberg, 1931, p. 101, fig. 54. Occurrence: 1. St. 42. South Georgia. 1 adult <$ 9 mm., 3 immat. g$ 5-6 mm. 2. St. 123. South Georgia. 1 <$ 8 mm. Description. Deceptively like crenatipalmatus on first glance at the 2nd gnathopods, but at once distinguished by the upstanding apex of pleon segment 3. Side-plate 3 Fig. 58. Proboloides antarcticus, Wlkr. Gnathopod 2 of c
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