160 Mr. G. B. Sowerby on the 



OVULUM LONGIROSTRATUM. 



O. tesld oblongd, tenui, albicante, titrinque longirostrntd; dor so sub- 

 gibboso; aperturd angustd, prope basin paulidhm expansd; labii ex- 

 terni margine exteriore subincrassato; long. 2y^, lot. y*o, poll. 

 Hab. in Mari Adriatico. Mus. Goodall. 



Desc. Shell oblong, slender, whitish, with a slight flesh-coloured 

 tint ; the back is rather tumid, and both the terminal canals are very much 

 elongated and sharply acuminated, like the long beak of some small 

 birds ; aperture narrow, slightly widened near the base ; outer lip with 

 its outer margin rather thickened ; inner margin smooth. 



A most interesting, delicate, and slender species, of which I have only 

 seen one specimen, brought from the Adriatic by the Rev. Dr. Groodall. 



OvULUM VOLVA, 



Lam., Anim. sans vert. VII. 370. 

 O. testd ovali, utrinque longirostratd, dorso transversim striato; labio 

 externo incrassato, margine rotiindato, intAs crenulato; canalibus 

 subjlexuosis, elongatis; long. 4, lat. 1, poll. 

 Bulla Volva. Linn., et nonnull. 



Desc. Body of the shell oval ; back transversely striated ; outer lip 

 considerably thickened, not so perfectly involute as in some other species, 

 its edge rounded, slightly crenated within ; both the canals much pro- 

 longed, and somewhat flexuous, the upper longer than the lower. The 

 outside of the body of this shell, when in good condition, is covered 

 vnth. transverse impressed strise, these diverge as they approach the lip, 

 and become oblique towards the canals, on which they gradually increase 

 so much in breadth as rather to form the spaces between oblique raised 

 lines, than to deserve the appellation of impressed striae. 



Not only singular, but elegant in form ; when in fine condition it is 

 of a delicate flesh-colour, darker within, and the outside 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 do not profess to be informed as to its localities, though I am rather 

 inclined to believe that China, Sumatra, Java, and the Islands of the In- 



