45 



PLEISTOCENE FOSSILS. 



(From Badger Island.) 



-rt S At any rate, a South Austra- 



Physa- TENTJISTRIATA. ] T .' 



( lian species. 



f Sliows some characters which, 



I if permanent, wonld justify 

 its separa,tion from the South 

 ^^^x,.w^.^^^ .^..^.-^^w^^.^.y J Australian called as above. 

 (Pomatiopsis.J "j Mr. Woods gives no reason 



for its removal from this 

 I genus. It may be a Poma- 

 l tiojms. 

 (From Cape Barren Island.) 

 Paludestrina sp. (B. j) Occurs in the River Torrens, 



legmndi{f) Woods.) I at Adelaide. 



SUCCINEA STRIGATA. 1 



Helix die^ienensis. (Cox | Living species also sent from 

 apparently.) )- sand clnnes now forming on 



Do. sp., allied to iJ. Ptf/ioZejisis. I the islands. 

 (Cox.) i 



The existence of similar land shells in the dunes now being 

 formed is hardly necessary to guide us to the conclusion that 

 the HelicidcB Sandstone has been formed in a similar way, and 

 under similar conditions. Everything points in the same 

 direction. The minute fragments of shells, which are the 

 chief cementing principle in the sandstone, are certainly 

 marine ; and I have frequently, in the associated coarser 

 grits, obtained the somewhat worn body-whorl and aperture 

 of the shells Bittium granarium and Truncatella tasmanica, 

 species which now exist in the greatest abundance on the 

 shores of the various islands. 



The shells may now be classed as follows : — 



fossil — HELICID^ SANDSTONE. 



Helix stanleyensis (Pet 



, TN . Still existino-. 



terd) ( '^ 



Do. pictilis (Tate) Ditto. 



Do. ^vellingtonensis (Cox) Ditto. 



Succinea australis (?) Ditto. 



BiTHYNELLA NiTiDA (Mihi.) j Doubtfullv distinct foom a,i 

 ^ -^ ( existnig torm. 



SUB-FOSSIL- — BED OF OLD LAGOONS. 



Pomatiopsis badgerensis j May only Ije a variety of exist- 

 (Mihi.) I ing species. 



Physa tenuistriata (?) j ^<^^^^^ ^ith Sowerby's P. 

 ^ ^ ( eburnea. 



