MARINE MOLLUSCA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 149 



Cyamium antarcticum, Phil. 



Cyamium antarcticum, Philippi, Arch. Naturg. (1845). 



„ „ H. and A. Adams, Gen. Bee. Moll, ii., p. 476, pi. cxiv., fig. 11 a, b 



(1858). 

 Chemn., Man. de Conch., ii., p. 127, fig. 605. 



Hab. — Shore, Falkland Islands, January 1903. 

 Only in young state, but perfect specimens. 



Cyamium falklandicum, M. & St. 

 Cyamium falhlandicum, Melvill and Standen, Journ. of Conch., ix., pi. i., fig. 12 (1898). 



Hab. — Shore, Hearnden Water, Falkland Islands, January 1, 1903. 

 Only in juvenile condition, occurring with the last-named species. The surface is 

 mostly beautifully iridescent in these specimens. 



Family Erycinidse. 



Lassea consanguinea (Smith). 



Kellia consanguinea, E. A. Smith, Phil. Trans. Roy. Soc, vol. clxviii., p. 184, pi. ix., fig. 20 

 (1879). 



Hab. — Hearnden Water, Falkland Islands, January 7, 1903 ; Scotia Bay, South 

 Orkneys, 6-10 fathoms, February 1, 1904. 



Near L. miliaris, Phil., but apparently distinct. Varying somewhat in colour, 

 from a uniform deep rose tint to straw-coloured, tinged with rose only at the dorsal 

 margin. 



Kellia cycladiformis (Desh.). 



Erycina cycladiformis, Deshayes, Trait, elem., pi. xi., figs. 6-9 ; P.Z.S. Lond., 1855, p. 181. 



Hab. — Burdwood Bank, trawl, 56 fathoms, December 1903. 



A species of wide distribution in southern latitudes. Keported from North Australia 

 (Jukes), New Zealand (Quoy, Hutton, Hector), etc. 



Kellia lamyi. nom. nov. 



Kellyia australis, E. Lamy, " Moll, des Orcades du Sud," Bull. Mus. Hist. Nat. Paris, 1906, 

 p. 124 (non Deshayes). 



Hab. — Scotia Bay, South Orkneys. Dredged at 6 fathoms. 



A minute species, which occurred gregariously in great numbers at the above station. 

 Its obliquely ovate form, when seen with the valves closed, somewhat recalls a Nucula. 

 In the left valve the single cardinal tooth is flanked by two very prominent incrassate 

 laterals. In some specimens there is corrosion at the umbones. We have renamed 



