482 



0. testa elongata, in medio ventricosfi, sub-angulata, laevi, ad 

 canales sub-recedente, antice sub-angulata, labio interno laevi, 

 ad canales attenuato. 



A beautiful shell, rather angular in the centre, with the canals 

 elongated, narrow, and gracefully curved backwards ; the colour 

 in the aperture is delicate pink, the rest of the shell a very pale 

 pinkish fawn. 



It is from the Adriatic Sea. 



48. Ovultjm volva (pi. xcix. f. 6, 7, 8), Lam. Anim. s. 

 vert, vii. 370. 



0. testa ovali, utrinque longirostrata, fulva, spiraliter striata; 

 apertura aperta; labio externo crasso, obscure crenulato, in medio 

 arcuato, ad extremitates breve, spiraliter recedente, labio interno 

 in medio ventricoso, ad canales recurvo, truncate 



This well-known species is ventricose in the middle, and with 

 elongated, recurved extremities. It is of a fawn colour, inclining 

 to pink at the margin. 



The comparatively smooth variety figured is from the Island of 

 Mindinao, by Mr. Cuming. The other is from China. 



UNIDENTIFIED SPECIES. 



0. album, Dufo, Ann. Sci. Nat. 1840, p. 186. 

 0. nigerinum, Dufo, Ibid. 



0. gallinaceum and 0. corrugatum would be more properly 

 referred to the genus Erato. 



