10 



of the outer lip of a beautiful pink hue: its long canals are spirally rolled, and obliquely striated on the back ; the reflected lips 

 do not spread far over the back of the shell. Lamarck mentions the Coast of Brazil and the West Indies, but I am rather 

 inclined to believe that China, Sumatra, Java and the Islands of the Indian Archipelago may with more propriety claim this interesting 

 and generally valued shell as a native of their coasts. It is the Weaver's Shuttle of English Collectors, La Navette of the French. 



OVULUM ACICULARE. Fig-. 49 to 52. 

 Lam., Anim. sans vert. VII. 369. 



O. testd ohlongd, angnstd, cinerco-violascescente ; labio externo columelldque rectis; canali superiore extus carinam obtusam 

 efformante; labio externo vix incrassato, prope basin sabangnlato ; columelld infra medium subsukatd ; long.-fe, lot. 

 T \, poll. 



Hab. ad littora Insularum India; occidentalis. Mus. Goodall, nost., &c. 



Var. 1 testa albicante, vel flavicante, linea columellari violacea. 



Var. 2 testa violacea, ventricosiuscula. 



Var. 3 testa flavicante, ventricosiuscula. 



Desc. Shell oblong, narrow, dull violaceous ; columella and outer lip straight ; upper canal forming an obtuse keel on the 

 outside; outer lip scarcely thickened, slightly angular near the base; columella-with a slight longitudinal groove near and rather 

 below the middle. 



We have several varieties cf this species, both in colour and form: the first is white, with a violet line along the middle of the 

 columella; another is of a sulphur colour with a similar violet line ; a third is rather more ventricose, and of a violet colour, and the 

 fourth of a greenish yellow, and of the same form. It is a native of the West Indies. 



OVULUM PATULUM. Fig. 58. 



0. testa tenui, ovato-oblongd, medio subventricosd., superne coarctatd: aperturd latiusculd ; labii externi margine arcuato, acuto; 

 columelld superne uniplkatd ; prope basin longitudinaliter sidcato-impressd; long. J, lat. ■ t i !! , poll. 



Syn. Bulla patula. Jluctorum Britannicorum. Simnia patula, Leach. 



Hab. in Mari Britannico. Mus. nonnull. 



Desc. Shell thin, ovate-oblong, ventricose in the middle and contracted at the upper extremity ; aperture rather wide, 

 margin of the outer lip arched, acute; columella forming a single fold at the upper end, flexuous and longitudinally grooved near 

 the lower extremity. 



A species which has been long well known as an inhabitant of the British coast ; we have never heard of its occuring on any 

 other. Leach in his MSS. has elevated it to the rank of a genus under the appellation of Simnia, and in my work on the Genera 

 of Shells I have expressed some doubt as to the propriety of placing it with the Ovida, from which it seems naturally separated by 

 the sharp edge of its outer lip : there is, however, another species which serves to connect it closely with the Ovula, namely, 

 Lamarck's O. acicularis, it therefore appears desirable to give it a place among them. Without venturing to express an opinion 

 respecting its proper place in a Natural System, I may still direct the attention of the reader to the similarity existing between this 

 shell and the Bulla Xaucum and cylindrka. It seems to a certain degree naturally to connect the genera. 



OVULUM HORDE ACEUM. Fig. 5?. 



O. testd oblongd, subcylindricd, utrinque subacuminatd, castaneo-rubrd ; dorso postice subangulato, labio externo crtmulato. 



Ovula hordacea, Lam. Anim. sans vert. VII. p. 369. 



Hab. in littoribus Africanis ? In Mus. Hist. Nat. Paris. 



Desc. Shell oblong, nearly cylindrical, rather acuminated at both extremities, of a chesnut colour, upper part of the 

 back rather angular. 



Drawn and described from the only specimen I have been able to see, in the Museum at the Jardin des Plantes, at Paris. 

 It is in bad condition, and does not agree in all respects with Lamarck's description. 



