OVULUM FRUMENTUM. Fig. 37. 



O. testa oblongd, dorso transversim gibboso ; rubescente, transversim albido-unifasciatd; labio externa margine planulato, inthi 

 denticulate/; labio columellari superne calloso, infra depresso ; extremitatibus subacuminatis, obtwiusculis ; long. T V, 

 lat. J T > poll. 



Hab. . Mus. nost. 



Desc. Shell oblong, back transversely gibbous; colour approaching to crimson, with a whitish transverse band; edge of 

 the outer lip flattened, inner edge denticulated : columellar lip with an oblique callosity at the upper end, depressed at the lower 

 part ; extremities rather acuminated and obtuse. 



One of the smallest species I know ; I have only seen two or three specimens, and am unacquainted with its locality. 



OVULUM STRIATULUM. Fig. 38. 



O. testa oblongd, dorso transversim striata et gibboso, albicante; labio externo planulato, inths denticulato; labio columellari 

 superne calloso, infra depresso ; extremitatibus subacuminatis, obtusiusculus, long. -\, lat. -^, poll. 



Hab. 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. Frumcntum'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. Humphrey. 



OVULUM EMARGINATUM. Fig. 54 and 55. 



O testa oblongd, subventricosd, medio transversim carinatd, carina obtusd ; aperturd sublineari, supra emarginatd, emargina- 

 tione validd ; labio externo interne leviter denticulate 



Hab. . 



Desc. In general form this species closely resembles 0. gibbosum, but it may easily be distinguished by its superior canal 

 forming a distinct notch, visible from the back : the thickened outer lip is white, but the remainder of the shell is of a pale rose- 

 colour. The only specimen of this rare species I have seen is in Mr. Bland's collection ; its locality is unknown. 



OVULUM GIBBOSUM. Fig. 28 to 31. 



0. testd oblongd, ulrinque obtusd, albidd seu aurantiaco-fulvd ; angulo elevato obtuso supra medium cingutoto ; long. 1-fy, lat. 



a, poii. 



Ovula gibbosa, Lam., Jlnim. sans vert. VII., 369. Bulla gibbosa, nonnull. Ultimus. Montf. 



Testa junior labii externi margine acuto, dorso obsolete angulato. 



Var. 1 raa . canali superiore angustiore ; long, l- 3 ^, lat. -j%, poll. 



Var. 2 da . testa breviore, latiore ; long. 1 t l, lat. i- 3 -, poll. 



Hab. ad littora Brasiliae, insularumque Indiae Occidentalis. 



Desc. Shell of an oblong form, obtuse at both extremities, upper extremity of the aperture rather narroiver than the 

 lower ; canal at both ends nearly straight ; lips a good deal thickened, inner edge of the outer lip a little irregular, not toothed : 

 the glaze deposited by the two coats of the mantle not meeting in the centre of the back, the intermediate space longitudinally 

 striated, generally of a lighter colour than the edges, which are mostly of a dull orange-yellow, darker on the dorsal than on the 

 ventral side. In its young state this species scarcely shows any of the angular dorsal gibbosity which so eminently characterizes it 

 when full grown. There are two varieties, one of which is shorter and broader, the other narrower at the upper extremity, and 

 rather paler in colour and slenderer in form than the principal variety. 



A common species from the coast of Brazil and the West India Islands. 



