404 ON MENKE's AUSTRALIAN SHELLS, 



dextrorsum versa ; margins interno cremdalo. Long. 10 # 5, lat. 6 Hues. 

 Hob. North-western Coast. 

 Allied to Chama asperella, Lamk. 



Donax sulcarius, No. 23.5, p. 40. 



D. testa snbtrigono-ovata, compressiuscula, transvcrsim striata, striis 

 tenuissimis decussata, fulva, obscurius zonata lineis-que interruptis 

 verticalibus picta, postiee obtuse angulata transvcrsimque sulcata ; 

 margine interno integcrrimo. Long. 10 "3, alt. o, crass. 3*6 lines. 



Hah. "Western Coast. 



[I have a Donax from King George's Sound, which is ref errable 

 to the above ; it is allied to D. columbella, Lamarck, but possessing 

 distinctive characters.] 



Cytherea scalaris, No. 241, p. 42. 



G. testa cordato-orbiculata, convexa, lamellis surrectis appressis 

 confertis cincta, rufa, albido zonata et radiata; ano cordato, impresso, 

 parvo ; vulva linear i. Long. 2 inches 2 lines, alt. 1 inch 1 1 lines, 

 crass. 11 lines. 



Sab. North-western Coast. 



[Deshayes quotes this species as Bosinia scalaris.'] 



Cytherea vaginalis, No. 246, p. 42. 

 C. testa ovato-orbiculata, subtrigona, convexiuscula, antcrius 

 compressa, laevi, cornea, maculis radiantibus rufis virgata; intus 

 rosea, margine crenulato ; ano linear i-lanccolato ; vulva projundc 

 impressa, patente. Long. 12, alt. 10, crass. 5 lines. 



Ifab. Western Coast. 



[Deshayes quotes this species as Cuncus vaginalis.'] 



Cytherea menstrualis, p. 42. 



Species vulvae imprcssione profunda distinctissima, singular is. 

 Aliam huic proximo ajfinem speciom majorem equidem possideo ncedum, 



