477 



the middle, and having the extremities turned upwards at the 

 back. Brought in the Samarang, from the coast of Bilaton. 



31. OvuLUM ACiCTJLARE (pi. c. f. 43 to 46), Lamarck, Anim. 

 s. vert. vii. p. 369. 



O. testa elongata, sub-cylindracea, pellucida, Isevi, flavida vel 

 purpurea, ad extremitates obtusa ; labio externo paululum incras- 

 sato, antice subangulato ; labio interno rectiusculo sub-planulato, 

 in carinam longitudinalem elevato, postice leviter uuiplicato, 

 antice sub-emarginato, ad canalem sub-tortuo, producto. 



Tliis elongated species partakes more or less of the form of the 

 Gorgonia stems to wliich it adheres, the columella is generally 

 somewhat flattened, and the aperture obtuse at the extremity of 

 the canals. The colour is violet, dark, or reddish purple, or very 

 pale fawn, or yellow. The dark purple specimen belongs to Mr. 

 Cuming ; the beautiful yellow variety, to Mr. Hanley. 



32. OvuLUM SUB-ROSTRATUM (pi. c. f. 39, 40), Sowerhy, 

 junr., Pro. Zool. See, 1848. 



O. testa oblonga, isevi, rubra- violascente, ad extremitates sub-pro- 

 ducta, acuminata ; dorso margine distincto ; apertura angustata, 

 antice sub-angulata ; labio externo laevi, ad extremitates rece- 

 dente ; labio interno tumido, intiis unicarinato, postice spiraKter 

 uniplicato, ad canales rectiusculo, producto. 



Like Secede, but with the extremities more produced, and 

 straight. Mr. Cuming^s collection, from Honduras Bay. 



33. OvuLUM LANCEOLATUM (pi. c. f. 35, 36), Sowerly, juuT., 

 Pro. Zool. Soc, 1848. 



0. testa elongata, angustata, minutissime striata, aurantia ru- 

 bescente seu albida ; canalibus sub-productis, emarginatis ; aper- 

 tura angustata, labio externo planulato, crasso, breviusculo, in 

 medio rectiusculo, antice angulatim flexuoso ; labio interno tumido, 

 rubro longitudinaliter marginato, postice ad canalem producto, 

 sub-tortuoso, antice intiis longitudinaliter sulcato, uniplicato, ad 

 canalem angusto, rectiusculo, acuminato. 



A very remarkable shell, presenting the appearance of an 0. aci- 

 culare much lengthened out ; the aperture is very narrow except- 

 ing towards the anterior, where the outer hp is bowed out. The 

 under surface of the shell is flat ; the inner lip edged with a red 

 Kne. In Mr. Cuming's collection, from Sorsogon, Island Luzon, 

 Philippines. The white variety (?) is from Malacca. 



