i 4 o DISCOVERY REPORTS 



Dentition. Fig. L, 73, p. 194. The radula is very similar to that of densesculpta except that the cusps 

 of the central tooth are closer together, more broadly triangular and the middle one is much larger than 

 the other two. 



Operculum. Typical, horny, small for size of aperture, irregularly ovate, flattened along the lower 

 or anterior edge which is the nucleus. Aperture of shell 3-3 times height of operculum. 



Type locality. St. 456. 1 mile east of Bouvet I., 18 Oct. 1930, 40-45 m. (one living example, the 

 holotype, and one empty shell). 



Chlanidota densesculpta (Martens) PI. VIII, figs. 31-33 



Cominella {Chlanidota) densesculpta Martens, 1885, p. 91. 



Cominella (Chlanidota) densesculpta Martens & Pfeffer, 1886, p. 71, pi. 1, fig. 3 a-/. 



Chlanidota densesculpta Strebel, 1908, p. 33. 



Chlanidota densesculpta David, 1934, p. 128. 



The species is quite variable in shape as shown by the following dimensions : 



Height 31-0 mm. ; diameter 20 mm. (Martens & Pfeffer). 



Height 34-5 mm.; diameter 24 mm. (Martens & Pfeffer holotype). 



Height 30-0 mm.; diameter 21 mm. (St. 1941), PI. VIII, fig. 31. 



Height 30-0 mm.; diameter 18 mm. (St. WS 62), PI. VIII, fig. 32. 



Height 40-0 mm.; diameter 23 mm. (St. WS 62), PI. VIII, fig. 33. 



Dentition. Fig. L, 75, p. 194. The radula is most like that of pilosa n.sp. 



Type locality. South Georgia. 



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



St. 141. East Cumberland Bay, South Georgia, 200 yards from shore under Mt. Duse, 29 Dec. 1926, 17-27 m. 



St. 145. Stromness Harbour, South Georgia, between Grass I. and Tonsberg Point, 7 Jan. 1927, 26-35 m - 



St. 1 941. Leith Harbour, South Georgia, 29 Dec. 1936, 55-22 m. 



St. WS 62. Wilson Harbour, South Georgia, 19 Jan. 1927, 15-45 m - an( l 26-83 m - 



St. MS 6. East Cumberland Bay, \ mile south of Hope Point to i\ cables S x E of King Edward Point Lt., 



12 Feb. 1925, 24-30 m. 

 St. MS 10. East Cumberland Bay, \ mile south-east of Hope Point to \ mile south of Government Flagstaff, 



14 Feb. 1925, 26-18 m. 



Range. Antarctic; South Georgia 0-270 m. ; south-west of Snow Hill I., 64 36' S, 57 42' W, 125 m. 

 (Strebel, 1908). Note: Marten's 1903 Bouvet I. record of densesculpta is Thiele's Notoficula bouveti 

 (Thiele, 1912). 



Chlanidota elongata (Lamy) 



Cominella (Chlanidota) vestita var. elongata Lamy, 1910&, xvi, p. 319. 

 Cominella (Chlanidota) vestita var. elongata Lamy, 1911a, p. 6, pi. 1, fig. 6. 



Type locality. Off King George I., South Shetlands, 420 m. 



St. 170. Off Cape Bowles, Clarence I., 6i° 25' 30" S, 6o° 28' 00" W, 23 Feb. 1927, 342 m. 



St. 175. Bransfield Strait, South Shetlands, 63 17' 20" S, 59 48' 15" W, 2 Mar. 1927, 200 m. 



St. 1952. Between Penguin I. and Lion's Rump, King George I, South Shetlands 11 Jan. 1937, 367-383 m. 



St. 1957. Off South Side of Clarence I., South Shetlands, 7 miles east of Cape Bowles, 3 Feb. 1937, 785-81001. 



Range. Antarctic; South Shetlands, 200-810 m. 



Dentition. Fig. L, 76, p. 194. 



