478 



34. OvuLUM DEFLEXUM (pi. c. f. 37, 38), Sowerbi/, junr., 

 Pro. Zool.Soc, 1848. 



O. testa ovali-elongata, laevigata, albida; extremitatibus de- 

 iiexis ; apertura augustata ; labio externo crasso, lato, complanato, 

 autice arcuato, breviusculo ; labio interno longitudinaliter tumido, 

 complanato, postice uniplicato, antice ad canalem aciimiuato. 



Resembling 0. aciculare, but with a broad, flattened, outer lip, 

 and the extremities turned downward. 



Erom Ticao, Pliilippines. Mr. Cuming. 



35. OvuLUM UNIPLICATUM (pi. c. f. 30, 31, 32), Sowerhj, 

 junr., Pro. Zool. Soc. 1848. 



O. testa elongata, sub-cylindrica, pellucida, minutissime striata, 

 aurantia, seu violacea; antice sub -acuminata, postice sub-rotun- 

 data; dorso margine distincto, apertura sub-aperta, labio externo 

 paululiim incrassato, ad extremitates recedente, antice sub-angu- 

 lato, ad canalem emarginato, labio interno intiis sub-depresso, 

 postice spiraliter uniplicato, ad canalem tortuo, versus labium ex- 

 ternum deflecto, antice sub-tortuo, acuminate 



The pale violet variety was dredged by Mr. Cuming, near 

 Charleston, S. Carolina, a darker one, at Rio Janeiro, and the 

 locality of the others is unknown. This species resembles 0. aci- 

 culare, but is more acuminated at the anterior extremity, it is 

 rather more ventricose, finely striated, the spiral fold near the 

 anterior canal is more decided, and less oblique, and the edge of 

 the canal above it invariably leans towards the outer lip. 



36. OvuLUM APERTUM (pi. ci. f. 106, 107), Sowerhi/,jimr. 



O. testa laevigata elongato-ovali, fulva-rufescente ; canalibus 

 breviusculis ; apertura aperta, labio externo tenui, antice sub- 

 emarginata ; labio interno postice ad canalem sub-reflexo, antice 

 sub-tort uoso tenui ; intus sub-depresso. 



Of a form between that of 0. triticeum, and that of secale ; of 

 a dull reddish-brown colour. In the specimen which we have, 

 the lip is not tliickened nor reflected, although it appears to be a 

 full-grown shell ; if it be so, it will form a companion to 

 0. Pamlum. 



We are indebted for the specimen to Mr. Hanley, who is unac- 

 quainted with its locality. 



37. OvuLUM PATULTJM (pi. ci. f. 105, 113). Bulla Patula, 

 auctorum. Simnia Patula, Leach. 



