244 MR. W. HARPER PEASE ON NEW MOLLXJSCA. [Juncll, 



six, convexly rounded, sutures well impressed; aperture lunately 

 oval ; lip entire, white, attached for a short distance to the penulti- 

 mate whorl. 



Hab. Huaheine. 



This species is apparently covered with an epidermic layer, of a 

 greenish colour. But one specimen found in company with the pre- 

 ceding. 



The only species I am aware of allied to it is G. ventricosa, 

 Horn. & Jac, Voy. au Pole Sud, from which it differs in shape and 

 colour. 



FiSSURELLA GRANIFERA. 



Shell conical, sUghtly ovate, inclined anteriorly, radiately granosely 

 ribbed ; interstices cancellated ; orifice oblong, slightly excavated in 

 the middle. Colour white, rayed with hght green. 



Hab, Sandwich Islands. 



Planaxis plumbea. 



Shell solid, oblong-ovate, minutely striated transversely ; bluish 

 lead-colour, surrounded with black and whitish bands, usually on 

 the lower half of the whorls, upper part with one or two obscure 

 black bands, the margins of the whorls tinged with reddish brown ; 

 whorls six, convex, the last more than two-thirds the length of the 

 shell ; aperture ovate, expanded ; columella curved ; epidermis 

 brown, velvety. 



Hab. Sandwich Islands. 



COLUMBELLA SANDWICHENSIS. 



Shell short, thick, smooth, white, mottled with orange colour, and 

 ornamented with rather distant transverse orange-brown lines ; spire 

 short, granulose at apex ; last whorl faintly striated at base ; colu- 

 mella slightly curved, with two prominent teeth on the inner, and six 

 smaller on its outer edge. 



Hab. Sandwich Islands. 



This species seems to approach varieties of C. turturina. 



Melampus (Tralia) striatus. 



Shell elongately ovate, dark brown ; spire short ; apex granulose ; 

 last whorl ornamented with revolving striae, which, on mature speci- 

 mens, are distant or disappear altogether on the middle portion of 

 the whorl ; columella furnished with three plaits and one at the base ; 

 outer lip with one or two lamellae. 



Hab. Tahiti. 



DORIOPSIS VIRIDIS. 



Animal small, somewhat rigid ; form oblong-oval, widest at the 

 middle, rounded at both ends ; mantle convex, covering the foot, 

 thin at the margins, minutely granulose ; cervical tentacles small, 

 ovate, mucronate, laminated, and retractile into large simple cavities ; 

 labial tentacles wanting ; foot small, similar to mantle in shape ; 



