Recent Species of Ovulum. 155 



tJepressed, and straightened : aperture narrow at the upper extremity, 

 wider and somewhat angular at the lower. In general form this species 

 is more lengthened than O. carneum, and it is less gibbous; it has, 

 however, a slight angular gibbosity rather above the middle of the back. 

 My specimens accord perfectly with Lamarck's description; he states 

 that it is found on the coast of Africa ; my specimens, according to the 

 late G. Humphrey, are frpm Japan. 



O. hordeaceum. Lam., does not appear to me to differ from O. triti- 

 ceum; my opinion is, however, formed only from the comparison of his 

 descriptions, for I have never seen the shell described by him under the 

 former name; and I shall be most thankful to any friend who will com- 

 municate to me an authentic specimen of it. 



OVULUM STRIATULUM. 



O. testd oblongdf dorso transversim striato et gibboso, albicante; labio 

 externo planulato, intus denticulato ; labio columellari supernb callosOy 

 infrd depresso ; extremitatibus subacuminatis, obtusiusculis, long, y^, 

 lot. y^, poll. 

 Hob. ad littora Oceani Indici. Mus. nost. 



Desc. Shell oblong, back transversely striated and gibbous, whitish; 

 outer lip flattened on the edge, denticulated on the inside ; columellar lip 

 callous at the upper end, depressed at the lower ; extremities rather 

 acuminated, but obtuse. 



A very small East Indian species, much resembling O. Frumentum m 

 general shape and characters, and differing from it only in colour and in 

 being transversely striated. From the East Indies, according to Mr. G, 

 Humphrej^ ^s-^ijCfTjsv • 



OvULUM FRUMfeNTUlifF ' ' "^ 



O. testd oblongdy dorso transversim gibboso ; mbescente, transverSim al- 

 bido-nnifasciatd ; labio externo margine planulato, intus denticulato ; 

 labio columellari supernk calloso, infrd depresso ; es^remitatibus 5m6- 

 acuminatis, obtusiusculis; long. y%, lat. -^-q, poll. 

 Hab, Mus. nost. 



Desc, Shell oblong, back transversely gibbous ; colour approachin* 



l2 



