378 Mr. Broderip and Mr. G. B. Sowerby on some 



stronglydistinguished from the comparatively elongated and ribbed spire — 

 the rounded body whorl and upper lip terminating near the spire in an an- 

 gular sinus — the almost straight columella — the thick and far-extended co- 

 lumellar lip shewing that the mantle must have extended over a compara- 

 tively large portion of the shell — the white aperture, and the deep and wide 

 canal of the sutures of the spire, which mark P. Melongena. In all the 

 full-grovra spined specimens of P. patula which we have seen there is but 

 one row of tubercular spines, and those are on the angle of the body 

 whorl. Other young and intermediate specimens have either a single 

 row of spines on the same angle or are entirely unarmed. The epider- 

 mis is striated and very thick. 



Fusus Lapillus. 

 JP. testd bulbiformif spird acuminata, tuberculiferd ; anfractu ultimo 



ventricoso, IcBvi ; caudd suhrecurvd ; labio interne striata ; long. \y\9 



lat. \-^poll. 

 Hob, ad littora Oceani Pacifici. 



Shell of a pale brown colour, with a thin horny epidermis. The inside 

 of the lip is deeply striated. 



Fusus PALLIDUS. 



F. testd subfusiformiy sulcata, anfractibus medio carinato-tuberculatis ; 



caudd reflexd ; labio interne striato, margine crenulato; epidermide 



tenui ; long. 1^, lat. ^, poll. 

 Hab. ad littora Oceani Pacifici. 



A very pretty species, of a pale brownish colour, and with a white, 

 internally striated aperture. A thin fuscous epidermis coats the outer 

 surface ; and the tubercles are sharp-edged. From Mazatlan. It may 

 not be uninteresting to add, that a Fusus from the Calcaire grossier in the 

 neighbourhood of Paris presents no observable marks by which it may be 

 distinguished from this recent species. 



*Pleurotoma tuberculifera. 

 P testd fusiformi, striatd, tuberculiferd, apice acuto, anfractibus fusco 



fasciatis; long. 1^^, lat. j^, poll. 

 Hab. in Oceano Pacifico prope Sinum Californiensem. 



