2S 8 DISCOVERY REPORTS 



Family SCINIDAE 



Stebbing, 1904, p. 18. 



Wagler, 1926 (revision of family); 1927. 



Besides Scina there are two other genera in this family: Acanthoscina and Ctenoscina, 

 but neither of these is represented in the Discovery collection. 



Genus Scina, Prest. 



Stebbing, 1904, p. 22 (key to species). 



Stephensen, 1918, p. 19. 



Wagler, 1926 (revision and key to species). 



Of the twenty-seven species described and figured in Wagler 's useful monograph 

 the 'Discovery' has taken twelve. Amongst them there are representatives of all six 

 groups except the latifrons group. 



It is to be noted that not a single specimen of this genus was taken by the ' Discovery ' 

 in the Drake Strait or South Georgia regions. The only existing record of a Scina from 

 these regions seems to be Bovallius' record of Scina tnllbergi from off Cape Horn. On 

 the other hand, the ' Valdivia' took numerous examples of S. antarctica Wagl. from the 

 area between Bouvet Island and Enderby Land (cf. also Wagler, 1927, p. 105). 



Scina crassicornis (Fabr.). 



Stebbing, 1904, p. 24. 



Stephensen, 1918, p. 19, chart 2; 1923, p. 9. 



Chevreux, 1919, p. 10. 



Wagler, 1926, p. 324, figs. 2, 3; 1927, p. 90, fig. 1. 



Barnard, 1930, p. 401. 



Occurrence: 1. St. 29 26' N, 15 07' W. 1 ? 6 mm., 1 juv. 4 mm. 



2. St. 80. South Atlantic. 1 9 8 mm. 



3. St. 81. South Atlantic. 1 $ 12 mm., 4?$ 10-12 mm. 



4. St. 83. South-east Atlantic. 1 <$ 10 mm., 2 99 9 and 11 mm. 



5. St. 86. South-east Atlantic. 1 $ 12 mm. 



6. St. 87. South-east Atlantic. 1 9 14 mm. 



7. St. 89. South-east Atlantic. 1 $ 9 mm. 



8. St. 254. South-east Atlantic. 1 ? 18 mm. 



9. St. 259. South-east Atlantic. 2 99 15 and 18 mm. 



10. St. 268. South-east Atlantic. 1 ^ 10 mm., 1 9 12 mm. 



11. St. 273. East mid-Atlantic. 2 99 11 and 13 mm., 1 ovig. 9 14 mm. 



12. St. 276. East mid-Atlantic. 1 9 13 mm. 



13. St. 281. East mid-Atlantic. 2 99 14 and 18 mm., 1 ovig. 9 13 mm. 



14. St. 285. East mid-Atlantic. 1 $ 13 mm., 2 99 IJ mm., 4 99 16-21 mm. 



15. St. 286. East mid-Atlantic. 1 <J 16 mm., 1 $ 15 mm. 



16. St. 287. East mid-Atlantic. 2 99 9 mm. (1 with parasitic Isopod). 



17. St. 288. East mid-Atlantic. 3 9? 8-10 mm., 1 ovig. 9 12 mm. 



18. St. 296. East mid-Atlantic. 1 9 10 mm. 



Remarks. The ?? in nos. 6 and 9 combine the typical crassicornis maxilliped with a 

 4th peraeopod which is more like that of cnrvidactyla, in that the 6th joint is shorter 



