. Fig. 16. Tryphosa triangularis, a. Tel- son. b. Side-plate 1. c. Anterior margin of is not symmetrical as in trigonica. Possibly some of head with peduncle of antenna 1, and the specimens attributed to murrayi by Schellenberg epistome and upper lip. d. Pleon segments (1926, fig. 16 b) should belong here. 3 an 4' The specific name refers to the likeness to trigonica and to the shape of the epistome. Tryphosa analogica, (Fig. 17). Cf. T. serrata, Schellenberg, 1931, p. 34, figs. 15, 16. Occurrence: 1. St. 144. South Georgia. 2 ovig. $9 12 and 15 mm., 1 juv. 6 mm. 2. St. 156. South
. Fig. 16. Tryphosa triangularis, a. Tel- son. b. Side-plate 1. c. Anterior margin of is not symmetrical as in trigonica. Possibly some of head with peduncle of antenna 1, and the specimens attributed to murrayi by Schellenberg epistome and upper lip. d. Pleon segments (1926, fig. 16 b) should belong here. 3 an 4' The specific name refers to the likeness to trigonica and to the shape of the epistome. Tryphosa analogica, (Fig. 17). Cf. T. serrata, Schellenberg, 1931, p. 34, figs. 15, 16. Occurrence: 1. St. 144. South Georgia. 2 ovig. $9 12 and 15 mm., 1 juv. 6 mm. 2. St. 156. South Georgia. 3 $? 10-13 mm- 3. St. 159. South Georgia. 1 ovig. $ 12 mm. 4. St. WS 25. South Georgia. 1 c? 14 mm., 1 $ 14mm., 2 ovig. $°. 16-17 mm. Types. Description. Antero-lateral angle of head pointed, but not very acute, reaching three-quarters the length of 1st joint of antenna 1. Eyes invisible. Pleon segment 3 with postero-inferior corner pro- duced in a rounded, serrate lobe; segment 4 with a strong subtriangular carina, rounded at apex, posterior margin vertical. Side-plate 1 slightly but distinctly narrowed distally. Epistome produced in a broadly rounded lobe above the upper lip. Gnatho- Fig. 17. Tryphosa analogica, a. Pleon pod 1 slender. Peraeopods 3-5 with 2nd joint feebly segments 3 and 4, with serration further .11 i-i rn 1 • 1 enlarged, b. Telson. c. Anterior margin of notched on hind margin, ielson twice as long as . , ., . , ,. ,, ° head with epistome and upper lip (the wide, each lobe with three lateral and two apical dotted line indicates a slight variation found spines. in some specimens).
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
