Mr. F. P. MaiTat on some new Species of Oliytx. 213 



with brown ; plaits numerous, indistinct ; canal edged with 

 brown. 

 Borneo. 



About the size of a small 0. maura. 



2. Oliva sabulosaj Marrat. 



Shell oblong fusiform ; spire flatly conical ; whorls rounded, 

 callous ; colour yellowish white, with small red-brown spots 

 and two interrupted letter-like bands ; columellar plaits 

 prominent, continued nearly the whole length ; interior of 

 the aperture and columella cream-coloured ; basal folds 

 broad and raised. 



Locality unknown. 



Larger than 0. tricolor ^ Lam., or episcopalis^ Lam., with 



the spiral whorls peculiarly rounded and callous. 



3. Oliva angustatttj Marrat. 



Shell narrowly cylindrical ; spire slightly raised, canaliculate, 

 edged with small rather close dots ; colour pale yellow, 

 with two brown interrupted bands and small pale dots ; 

 columella plaited more than midway, with two or three 

 broad folds at the base ; interior of the aperture bluish white. 



China. 



Most nearly allied to 0. neostina, Duclos, but is smaller, 



narrower, and differs in the folds and columellar plaits. 



4. Oliva notUj Marrat. 



Shell ovate fusiform, rather inflated; spire considerably ex- 

 serted, canaliculate ; suture with large brown blotches ; 

 white, with broad wavy brown lines, which become darker 

 about the belt ; belt white ; columella rounded, basal band 

 white ; a single deep-purple fold at the base ; the pattern 

 of the shell is seen through in the interior. 



Locality unknown. 



Not like any other species known to me. Size -^ inch by 



-iV inch. 



5. Oliva exilisj Marrat. 



Shell narrowly fusiform ; spire elongate conical, canaliculate ; 



colour white, with pale yellow-brown reticulated markings ; 



beneath the spire and basal band white ; columella callous, 



with five or six very strong plaits at the base ; interior of 



aperture white. 

 South America. 



This is a third species belonging to the genus Laniprodoma 

 of Swainson. Size, similar to the last. 



