SYSTEMATIC log 



Subgenus Pellilacunella n.subg. 

 Type : Pellilitorina bennetti Preston 

 (See above for diagnosis) 

 Laevilacunaria (Pellilacunella) bennetti (Preston) 

 Pellilitorina bennetti Preston, 1916, p. 270, pi. 13, fig. 4. 

 Type locality. Bransfield Strait, South Shetlands, on seaweed, 15 fathoms. 



St. 179. Melchior I., Schollaert Channel, Palmer Archipelago, in creek to south of south-west anchorage, 

 10 Mar. 1927, 4-10 m. 



Height 2-0 mm. ; diameter 2-0 mm. (holotype). 



Height 5-4 mm. ; diameter 5-0 mm. (St. 179). 



Height 6-o mm. ; diameter 5-0 mm. (St. 179). 



Dentition. Fig. I, 30, p. 191 (St. 179). 



The ' Discovery' shells attain a much larger size than Preston's holotype, but are assumed to be the 

 adult of the species. The diagrams show an adult (Fig. M, 101) and a juvenile (Fig. M, 100) compared 

 with a tracing of Preston's holotype (Fig. M, 99, p. 195). 



Genus Pellilitorina Pfeffer, 1886 

 Pellitorina setosa (Smith) ^ < Thiele ' Z 9 2 9) : Littorina setosa Smith 

 Littorina setosa Smith, 1875, P- 69. 

 Littorina setosa Smith, 1879, P- I 7 2 > P'- 9> %• °- 

 Pellilitorina setosa Martens & Pfeffer, 1886, p. 77, pi. 1, fig. ja, b. 

 Littorina (Pellilitorina) setosa Smith 19026, p. 204. 

 Littorina (Pellilitorina) setosa Melvill & Standen, 1907, p. 101. 

 Pellitorina (sic) setosa Strebel, 1908, p. 50. 

 Pellilitorina setosa Thiele, 1912, p. 235. 

 Pellilitorina setosa L. David, 1934, p. 127. 



Dentition. Fig. I, 32, p. 191. 



Type locality. Swain's Bay, 3-4 fathoms, Kerguelen Island. 

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

 St. 456. 1 mile east of Bouvet I., 18 Oct. 1930, 40-45 m. 



St. 1 94 1. Leith Harbour, South Georgia, 29 Dec. 1931, 55-22 m. (one empty shell). 

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



South Georgia, 14 Feb. 1925, 26-18 m. 

 St. MS 71. East Cumberland Bay, 9J cables E x S to 1-2 miles E x S of Sappho Point, South Georgia, 9 Mar. 



1926, 110-60 m. 

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



Range. Kerguelen I. ; Bouvet I. and Cape Adare (Smith, 1902) ; South Georgia (Pfeffer, Strebel and 

 L. David) and South Orkneys (Melvill & Standen). 



Pellilitorina pellita (Martens) 



Littorina pellita Martens, 1885, p. 92. 



Pellilitorina pellita Martens & Pfeffer, 1886, p. 79, pi. 1, fig. 6a-c. 



Littorina (Pellilitorina) pellita Smith, 19026, p. 204. 



Littorina (Pellilitorina) pellita Melvill & Standen, 1907, p. 101. 



Pellitorina (sic) pellita Strebel, 1908, p. 50. 



Littorina (Pelliltorina) pellita Melvill & Standen, 191 2, p. 348. 



Pellilitorina pellita L. David, 1934, p. 127. 



