Victorian Marine Mollusca. 145 



Genus Cerithiopsis, Forbes and Hanley 1853. 

 Cerithiopsis cessicus, Hedley. 



1906. Bittium minimum, Ten.-Woods. Prit. and Gat., 

 these Proc, v. XVIII., for 1905, p. 59, not of 

 Brusina, 1864. 



1906. Cerithiopsis cessiciis, Hed. P.L.S., N.S.W, 

 V. XXX., p. 529. 



Genus Batillaria, Benson 1842. 



This includes our shell listed as Potamides australis, Quoy and 

 Gaim. 



Genus Dial a, A. Adams 1861. 



DiALA SEMISTRIATA, PlliHppi. 



The shell previously listed as Diala varia, A. Adams, becomes 

 a synonym, as it had already been named as above (fide Melvill 

 and Standen, also Suter). 



Genus Melarhaphe, Menke 1828. 



Melarhaphe unifasciata, Gray. 



1827. Littorina unifasciata, Gray. King's Survey of 



Australia, v. II., App. p. 483. 

 1902. Littorina m^aiiritiana, Lk. Prit. and Gat., these 

 Proc, V. XIV., for 1901, p. 90. 

 Our shell is very similar to mauritiana, Lk., and the brief 

 •original description of it, as far as it goes, covers both species, 

 "but the clear and ample description by Gray enables their separa- 

 tion; unifasciata is found all round the coast of Australia; Tas- 

 mania; also in New Zealand. 



Included in the genus is the species listed as Littorina novae 

 jsealandiae, Rve. 



Genus Liotia, Gray 1842. (Pseudoliotia, Tate 1898 is a 



synonym.) 



Our shell listed as Pseudoliotia micans, A. Ad., is now called 

 a Liotia. 



Genus Liotina, Fischer 1885. 



The shells previously listed as Liotia australis, Kr. ; L. sub- 

 quadrata, Ten.-Woods; L. tasmanica, Ten.-Wds. ; L. hedleyi, 

 Prit. and Gat. ; and L. mayana, Tate, are now classed as Liotina. 



