SOWERBY : NEW SHELLS FROM MAURITniS. 47 



Somewhat like 0. Trailli, A. Adams, but the mouth is narrower 

 and the lip quite smooth without and within. Type in the Natural 

 History Museum. 



8. Cardixim: Robillardi, n.sp. PI. IV. Pig. 20. 



Testa suborbicularis, solidiuscula, mcdioeriter convexa, antice ro- 

 tundata, postice sub-angulata, albida, maculis fuscis irregulariter con- 

 spersa ; radiatim costata, costis circa 33 rotundatis, mediocriter elevatis, 

 conspicue nodoso-squamatis, interstitiis concentrice corrugatis. Cardo 

 normalis. Ligamentum parvum. Pagina albida stramineo tincta, 

 rufo-fusco triradiata. Fmbono-marg. 14, antero-post. 13 mm. Hah. 

 — Mauritius. 



A pretty little species, with numerous raised rounded ribs covered 

 with nodular scales, the interstices between the ribs being transversely 

 wrinkled. 



When I first saw a single example of this species in the Natural 

 History Museum I refrained from describing it, thinking it might be 

 a young shell, but having now met with several other specimens I 

 venture to do so. 



VOL. I. — MAUCH, 1894. 



