178 Qiiartet-ly Journal of Conchology. 



affinities of the forms, as shown in their whole structure. There is 

 therefore nothing astonishing in the fact that differences which in 

 some cases are taken to constitute species, are in others considered 

 varietal only. Color for instance which in some species is eminent- 

 ly variable, is in others perfectly constant. 



> ^» ♦« ■ < 



ON SPECIES OF MARINE SHELLS FOUND ON THE 

 COASTS OF SOUTH AUSTRALIA. 



By GEORGE FRENCH ANGAS, F.L.S.,C.M.Z. S., F\R.G.S., &c. 



Mr. W. T. Bednall has reprinted in Adelaide, my list of the 

 Marine shells of the Province of South Australia, which appeared 

 in the Proceedings of the Zoological Society of London for 1865, 

 at which period the number of knowTi species amounted 

 to about 236 univalves and 97 bivalves. Consequent upon his re- 

 searches since I left the province, Mr. Bednall has been enabled to 

 add several additional species to the list, thus bringing up the 

 total number of species to about 358. 



Murex Angasi, Crosse, hitherto known only as coming from New 

 South Wales, he gives as from Port Lincoln. 



A Fiisiis sp ? from the Semaphore beach. 



A new Epidi-07nis (E. Bed/ialli, Brazierj, from Guichen Bay. 



Bticciniiin ladeum. Reeve, from Port Elliot and Port Wallaroo. 



A variety of Nassa suturalis Lam., from Port Lincoln ; and 



Nassa Jacksoniana, Kiener, from the Semaphore. 



Melo Miltonis, Gray, from Fowler's Bay. 



Amalda tnargitjata, Lamk., from Port Lincoln and the South 

 coast. 



Mitra pica, Reeve, from Port Elliot, and Kangaroo Island. 



Opalia austra/is, Lamk., (a New South Wales species), from the 

 South coast. 



