MARINE MOLLUSCA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 113 



Dentalium shoplandi, Jouss. 

 Dentaliurn shoplandi, Jousseaume, Bull Soc. Philomath, de Paris, vi., p. 102 (1894). 



Hab. Lat. 71 22' S., long. 16 34' S., 1410 fathoms. 



Specimens are in the British Museum from " near Aden," dredged at 670 fathoms. 

 We can see no difference in this southern form, either in size, texture, or sculpture. 

 One example, dead, but characteristic. 



Class PELEOYPODA. 

 Order PROTOBRANCHIATA. 



Family Nuculidse. 



Nucula minuscula, Pfeffer. 



Nucula minuscula, G. Pfeffer, in von Martens und Pfeffer's Mollusken von Sild-Georgien, 

 p. 128, Taf. iv., fig. 15 (1886). 



Hob. Station 325, Scotia Bay, South Orkneys, 9-15 fathoms, April 1903. 



A single example only, for the determination of which we are indebted to the 

 author, Dr GEORG PFEFFER, of Hamburg. Its appearance in the South Orkneys is 

 interesting, as considerably widening its geographical area. 



Yoldia eightsi (Couth.). 



Nuetda eightsi, Couthouy ; vide Jay, Cat. Shells, 1839, ed. iii., p. 113, pi. i., figs. 12, 13. 

 Leda (Yoldia) eightsi, Hanley, in Sowerby's Thes. Conch., vol. iii., p. 142, pi. ccxxx., fig. 164. 

 Yoldia eightsi, Sowerby, Conch. Icon., vol. xviii., pi. v., fig. 26. 



Hob. Station 325, Bay A, South Orkneys, at 9-10 fathoms, May 1903. Scotia 

 Bay, at 5- to lj fathoms, December 18, 1903 ; and again at 6 fathoms, February 1, 1904. 

 Most examples were dredged on the latter occasion. 



Order FILIBRANCHIATA. 

 Sub-order ANOMIACEA. 



Family Anomiidse. 



Anomia ephippium, L. 



Anomia ephippium, Linne', Syst. Nat., xii. ed. (1769). 



,, ,, Jeffreys, Brit. Conch., vol. ii., p. 30, pi. i., fig. 4. 



Smith, Report " Challenger" Exp. : Zool, xiii., p. 318. 



Hob. Gough Island, trawl, at 100 fathoms. 



The specimens are all in young condition, and may possibly be an allied species ; 

 but we can see no difference when compared with juvenile examples of this well-known 



(ROY. soc. EDIN. TRANS., VOL. XLVI., 143.) , 



