BY R. TATE AND W. L. MAY. 387 



Genus B i t t i u m, Gray, 1847. 



*B. GRANARIUM, Kiener (Cerithium), Coq. Viv., p. 72, t. 19, f. 3; 

 Reeve, Conch. Icon., f. 35. 

 Common (Census); S. Coast, ^I'^ L. 31ay; King Island!. 



*B. Lawleyanum, Crosse, Journ. de Conch., 1863, p. 87, t. 1, f. 4. 

 Cerithium insculptum^ Sowerby, in Reeve's Conch. Icon., f. 128, 



1865. 

 Blackman's Bay, W. L. May. 



*B. cylindricum, VVatson, Challenger Exped., p. 550, t. 39, f. 5. 

 S. Coast, W. L. May. 



*B. ESTUARiNUM, Tate, T.R.S.S.Aust., xvii., 1893, p. 190, t. 5, 

 f. 12. 

 Ralph Bay, W. L. May (Coll. Aug. Simson !). 



Genus Potamides, Brongniart, 1810. 



Subgenus Pyrazus, Montfort, 1810. . 



*F, EBENINUS, Bruguiere [Cerithiuin), Quoy k Gaimard, Voy. 

 Astrolabe, t. 55, f. 1-3. 

 Frederick Henry Bay (rare), W. Z. May. 



Subgenus Batillaria, Benson, 1842. 



Lampania, Gray, 1846. 



*B. DiEMENENSis, Quoy & Gaimard {Cerithium), Voy. Astrolabe, 

 t. 55, f. 11-13, p. 128. 

 Turritella cerithium, Q. &l G., op. cit., t. 55, f. 27-28, p.^139. 

 Bittium twrritelta, Ten. -Woods, 1877. 



Batillaria cerithium, Tate, T.R.S.S.Aust., xxi., 1897, p. 42. 

 Hobart (type); very common (Census). 



■^B. AUSTRALis, Quoy tk Gaimard {Cerithium), op. cit., t. 55, f. 7. 

 Common (Census). 



Genus T r i f o r i s, Deshayes, 1824. 



*T. FESTiVA, A. Adams, P.Z.S., 1851, p. 278. 

 (Colls. Miss Lodder and W. L. May). 



