PHOTIDAE 235 



Epistome with a projecting triangular lamina (not spiniform). 



Gnathopod 1, 6th joint longer than 5th, both strongly lobed on lower margin. 

 Gnathopod 2, 2nd joint very stout, deeply channelled in front, both keels distally 

 forming prominent lobes, the outer broader than inner, 5th short, cup-shaped, 6th large, 

 oblong, palm slightly oblique, defined by a strong tooth, followed by a deep notch, and 

 then two teeth close together, one narrow, the other squarish, notched, finger stout. 



Peraeopods 1 and 2 stout. Peraeopods 3-5 stout, 2nd joint oval, longer and narrower 

 in peraeopod 5 than in peraeopod 3, intermediate in peraeopod 4, hind margin entire, 

 with indications of crenulation in peraeopod 5, lower hind angle rounded, 4th and 5th 

 joints expanded, stout, especially in peraeopod 3. 



Remarks. The specific name refers to the stout limbs, especially the 2nd joint of 

 gnathopod 2, and also to the locality, Elephant Island, near which the specimen was 

 caught. 



Genus Haplocheira, Hasw. 

 Stebbing, 1906, p. 609. 



Haplocheira barbimanus (Thorns.). 



Stebbing, 1906, p. 609, figs. 104, 105. 

 Walker, 1907, p. 35. 

 Chilton, 1912, p. 510. 

 Barnard, 1930, p. 391. 



Occurrence: 1. St. 140. South Georgia. 2 $$ 5-5 mm., 4 $$ 5-5—6 mm. 



2. St. 141. South Georgia. 1 ovig. $ 8-5 mm. 



3. St. 144. South Georgia. 5 $$ 6-8 mm. 



4. St. WS 25. South Georgia. 6 ?? 7-9 mm. 



5. St. WS 33. South Georgia. 5 ?? 5-5-6 mm. 



Remarks. Head with antero-lateral angle angular, but not sharply pointed as in 

 Stebbing's figure of phimosa (1888, pi. cxxvi). Pleon segment 4 with two small dorso- 

 lateral denticles on hind margin as noted by Walker (1907). Peduncles of pleopods 

 with small projection on inner apex. 



At the present time one cannot do otherwise than refer these specimens to Thomson's 

 species. A thorough critical comparison with Australasian specimens may show that 

 there are differences of specific value (cf. Stephensen, 1927, p. 352). 



Distribution (Antarctic). McMurdo Sound; South Orkneys. ? Falkland Islands. 



Haplocheira robusta, n.sp. (Fig. 148). 



? Stebbing, 1914, p. 370 {barbimanus, ? non Thorns.). 



Occurrence: 1. St. 53. Falklands. 1 $ 8-5 mm., 5 ?? (2 ovig.) 8-10 mm., 8 juv. 4-5-5-5 mm. 

 Types. 



2. St. 54. Falklands. 3 $$ (2 ovig.) 6-5 mm. 



3. St. 58. Falklands. 3 $? (2 ovig.) 7 mm. 



4. St. WS71. Falklands. 1 $ 6 mm. 



5. St. WS 85. Falklands. 1 <$ 8 mm., 4 $$ 6-10 mm. (one of the largest ovig.). 



6. St. WS 86. Between Falklands and South America. 1 ovig. 9 8-5 mm. 



30-2 



