. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 50 DISCOVERY REPORTS Hypsilophic form Occurrence: i. St. 45. South Georgia. 1 $ 10 mm. 2. St. 123. South Georgia. 1 <J 13 mm. 3. St. 140. South Georgia. 1 <$ 9 mm., 4 ovig. $$ 9-14 mm. 4. St. 144. South Georgia. 2 SS n-ia mm., 3 $$ 9-10 mm., 2 ovig. $ 10 mm., 1 juv. 6 mm. Remarks. The two forms here placed under kergueleni should in my opinion be regarded as specifically distinct. The raised keel on pleon segment 4 is correlated with a more prominently projecting upper b. Fig. 13. Tr
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 50 DISCOVERY REPORTS Hypsilophic form Occurrence: i. St. 45. South Georgia. 1 $ 10 mm. 2. St. 123. South Georgia. 1 <J 13 mm. 3. St. 140. South Georgia. 1 <$ 9 mm., 4 ovig. $$ 9-14 mm. 4. St. 144. South Georgia. 2 SS n-ia mm., 3 $$ 9-10 mm., 2 ovig. $ 10 mm., 1 juv. 6 mm. Remarks. The two forms here placed under kergueleni should in my opinion be regarded as specifically distinct. The raised keel on pleon segment 4 is correlated with a more prominently projecting upper b. Fig. 13. Tryphosa kergueleni (Miers). Dorsal profile of pleon segment 4 and profile of epistome and upper lip of: a. typical form; b. hypsilophic form. Schellenberg figures the two forms of carina, but says nothing about the upper lip. Both forms were found together at the ' Gauss' winter station. In the Discovery collec- tion the hypsilophic form was found in a different locality and in much deeper water. The two forms should be distinguished in all future records, and earlier records should be re-examined. Distribution (kergueleni sensu lato). Kerguelen;' Gauss' winter station; Ross Sea; South Georgia; New Zealand. Tryphosa major, (Fig. 14). Occurrence: 1. St. 159. South Georgia. 4 $$ 16-21 mm., 3 ovig. $$ 18-22 mm. 2. St. 170. South Shetlands. 2 S3 14 mm., 1 ? 14 mm., 1 ovig. $ about 20 mm. (mutilated). Types. 3. St. 175. South Shetlands. 3 $$ 12, 13, 16 mm. Description. Closely resembling the typical form of kergueleni in pleon seg- ments 3 and 4, but apparently a larger species. In other respects generally re- sembling kergueleni but inner lobe of maxilla 1 with six plumose spine setae, and epistome produced in a convex, but somewhat flattened lamina from between -"""^ a. 6. the bases of the 2nd antennae to the pig. 14. Tryphosa major, a. Pleon segments 3 upper lip. and 4. b. Profile of epistome and upper Please note that these images are extracted fr
Size: 1707px × 1463px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
