204 Quarterly Journal of Conchology. 



developed on two-thirds of the body-nhorl, which is more sharply 

 angled, whereas in C. troc/mlus, there are only a few well-marked 

 sulci at the base. The whorls of the spire of the present species 

 are slopingly flattened and slightly elevated one above another and 

 finely spirally striated, whereas in Reeve's species they are concave 

 or furrowed in the middle, not exserted or only \&xy slightly so 

 and do not show any distinct spiral striation. 



DESCRIPTIONS OF NEW SPECIES. 

 By F. P. Marrat. 



Nassa Smithil, n. s. 



AK testa ova fo-oblofiga, si/bfuslformi, crassa, albida, fasciis ttibus 

 fiiscis oniata ; anfr. 8-g, convexis, apicalibus Icevibus, costuHs 

 nin/ierosis, subnodosis, in anfractu nltimo gramilatis, ad siituras 

 7noniliformibiis; labro extiis valde incrassato, intus; lira to colu- 

 viclla arcuata, polita, 7/nimaciilata, valde vern/cosa, superne 



vniplicata. 



Hab. 1 



I name this shell after my conchological friend, Mr. Edgar A. 

 Smith, Zoological Department, British Museum. 



Natica caffra, n. s, 



N. testa subobtecte uinbilicata, oblique depressa, spira brevi; anfract- 

 ibus rotundatis, juxta siituras impressis, undique dense striatis, 

 albida, flammulis aurantio-fuscis subdistantibus longitudinaliter 

 picta, anfractu tdtimo i?i medio unifasciata. 



Hab. Corisco Bay, West Africa. 



