204 



1875 Diala monile, A. Adams; E. A. Smith, Proc. Zool. 

 Soc, p. 538. 



1877 Diala tessellata, Tenison- Woods, Papers and Proc. 

 Royal Soc, Tasmania, p. 37. 



Zfatf.— Port Lincoln, South Australia (IV. Metcalfe, A. 

 Adams) ; Port Lincoln, in shell sand (G. F. Angus) ; Tas- 

 mania (Tenison- Woods) ; mouth of Crookhaven River, 

 N.S.W., in shell sand (J. Brazier). 



10. Cerithium (Potamides) monachus. Crosse and 



Fischer, sp. 

 1855 Cerithium dubium, Sowerby, Thes. Conch., vol. 2, p. 



864, No. 62, pi. 181, fig. 120 (non Cerithium dubium. 



Sowerby Mineral Conchology, 1816). 

 1865 Cerithium monachus, Crosse and Fischer, Journal de 



Conchology, p. 347, pi. 3, figs. 17-18. 

 1865 Potamides monachus, Angas, Molluscan Fauna of 



South Australia. Proc. Zool. Soc, p. 171. 

 1865 Cerithium dubium, Sowerby; Peeve, Conch Icon t>1 



12, sp. 78a.b. • ' 



1877 Cerithium dubium (Reefe ! !) Tenison- Woods, Papers 

 and Proc. Royal Soc, Tasmania, p. 35. 



1880 Cerithium eludens, Bayle, Journal de Conchology, 

 vol. 27, 3rd series, p. 245, No. 9. 



This species was described first by Mr. Sowerby, in 1855, as 

 Cerithium dubium from Van Diemen's Land, now Tasmania. 

 Crosse and Fischer described it again, in 1864, under the 

 name of Cerithium monachus from specimens collected by Mr. 

 Angas in South Australia. Monsieur Bale, in the French 

 Journal de Conch., 1880, gives it a new specific name as 

 Cerithium eludens to replace the one given by Sowerby, in 

 1855, Sowerby, in 1816, having used dubium for a fossil 

 species, Bale not knowing that Crosse and Fischer had 

 described it in 1864 as Cerithium monachus, therefore Bale's 

 name must be placed amongst the synonyms. Tenison- 

 Woods erroneously attributes this species to Reeve. 



Hab. — Van Diemen's Land (Sowerby) ; Yorke's Peninsula, 

 Adelaide Creek, South Australia ; St. Kilda, near Melbourne 

 (G.F. Angas); Tasmania (Tenison-Woods); Hobson's Bay, 

 Victoria (J?. C Rossiter, 1861). 



11. Cassis semigranosa. Lam., sp. 



1822 Cassis semigranosa, Lam, Hist. Anim sans Vert, tome 

 7, p. 228, No. 23. 



