50 



Bulletin 35 



Page iyi 



Columbella peculiaris n. sp. 



Cylindric-suboval, often a little distorted ; whorls 6, slowly 

 increasing, the last forming about y% ; spire obtuse ; suture 

 somewhat irregular or dentate ; aperture small, pointed 

 above, peristome simple, columella simple, truncate. 



Pliocene, Matura. Perhaps allied to C. clausiformis 

 Kien., but of shorter and more ventricose figure. 



Mangelia micropleura n. sp. 



Subfusiform, longitudinal^ ribbed, the ribs crossed by 

 numerous striae, of which a prominent one forms an angle 

 on the upper part of the whorls ; last whorl longer than the 

 spire ; aperture rather narrow, lanceolate, with a sinus on 

 the posterior part of the thickened peristome. 



Pliocene, Matura. Allied to M. pulchella. The ribs 

 vary considerably as to size and distance apart. It was 

 denominated M . tcsniata in my list of I864. 



Conus recognitus. 



C. solidus, Sow, Quart. Journ. Geol. Soc, vol. vi., p. 45. 



Guppy, Quart. Journ. Geol. Soc, vol. xxii., 

 pi. xvi., f. 1. 



As the name given by Sowerby had been previously ap- 

 plied to another Cone, I propose the name of recognitus for 

 the present shell found in Haiti and Jamaica. 



Conus prototypus n. sp. 



Somewhat pyriform, finely striate anteriorly, becoming quite 

 smooth on the angle of the whorls, which bears a rather 

 indistinct keel ; spire mucronate, rather elevated ; aperture 

 somewhat widened towards the anterior canal. 



Caroni Series, Savanetta. A cone which departs very 

 considerably from the usual type in its swelling outlines 



