IIO DISCOVERY REPORTS 



Dentition. Fig. I, 33, p. 191. 

 Type locality. South Georgia. 



St. 45. 27 miles S 85 E of Jason Lt., South Georgia, 6 Apr. 1926, 238-270 m. (eroded dead shells). 



St. 164. North of Normanna Strait, South Orkneys, near Cape Hansen, Coronation I., 18 Feb. 1927, 24-36 m. 



Uruguay Bay, Laurie I., 3 Jan. 1933, 16 m., from weed on anchor. 



Family RISSOIDAE 



Genus Ovirissoa Hedley, 19 16 



/r.r a- \ Type (o.d.) : Rissoa adarensis Smith 

 Ovirissoa georgiana (rrener) Jr v 



Rissoa georgiana Pfeffer, 1886, p. 92, pi. 2, fig. 3. 

 Rissoa georgiana Strebel, 1908, p. 54. 

 Ovirissoa georgiana Hedley, 1916, p. 47. 



Type locality. South Georgia. 

 St. 28. West Cumberland Bay, South Georgia, 3-3 miles S 45 W of Jason Lt., 16 Mar. 1926, 168 m. 

 St. WS 25. Undine Harbour (north), South Georgia, 17 Dec. 1926, 18-27 m - 



Genus Subonoba Iredale, 191 5 

 Type (o.d.): Rissoa fumata Suter. 

 Subonoba cf. paucilirata (Melvill & Standen) 



Rissoa (Onoba) paucilirata Melvill & Standen, 1912, p. 350, pi. i, fig. 10. 

 Type locality. Burdwood Bank, 56 fathoms. 

 St. 144. Off mouth of Stromness Harbour, South Georgia, from 54 04' S, 36 27' W to 53 58' S, 36 26' W, 

 5 Jan. 1927, 155-178 m. 



Subonoba fraudulenta (Smith, 1907) 



Rissoa fraudnlenta Smith, 1907, p. 9, pi. 2, fig. 3. 

 Rissoa fraudulenta Melvill & Standen, 1907, p. 103. 

 Rissoa fraudulenta Hedley, 191 1, p. 5. 

 Rissoa fraudulenta Thiele, 1912, p. 194. 



Type locality. McMurdo Sound. 



St. 164. East end of Normanna Strait, South Orkneys, near Cape Hansen, Coronation I., 18 Feb. 1927, 24-36 m. 

 Range. Scotia Bay, South Orkneys, 6 fathoms (Melvill & Standen); Gauss Station (Thiele); 

 McMurdo Sound, 10-20 fathoms (Hedley); Macquarie I. 69 m. (Tomlin, 1948). 



Genus Eatoniella Dall, 1876 



Eatonia Smith, 1875 non Hall, 1857 



Type (o.d.) : Eatonia kergaelenensis Smith 



Eatoniella kerguelenensis major Strebel 



Eatoniella kergaelenensis forma major Strebel, 1908, p. 57, pi. 4, fig. S^ a ~ c - 

 Eatoniella kerguelenensis major Melvill & Standen, 1912, p. 351. 



Type locality. Cumberland Bay, South Georgia, low tide. 

 St. 163. Paul Harbour, Signy I., South Orkneys, 17 Feb. 1927, 18-27 m. 



Range. Recorded also from Scotia Bay, South Orkneys, 9-10 fathoms (Melvill & Standen, 1912); 

 south-west of Snow Hill I., 64 36' S, 57 42' W, 125 m. ; South Georgia, 22 m. ; Astrolabe I., 63 9' S, 

 58 17' W, 95 m. (Strebel, 1908). 



