(i44 DR. J. COX ON NEW LAND-SHELLS. [Nov. 7, 



aperture of a deep orange-red, columella light ; colour reddish 

 orange, conspicuously ornamented throughout the whole length of 

 the whorls, especially the last, with dark chestnut (almost approach- 

 ing to black) lightning-like markings, two or three of which are 

 broad, bifurcated above, and shaded off at the edges, others are in 

 thin linear zigzag streaks. 



Length 2"45, breadth l - 05 of an inch. 



Hab. Bass's Straits. 



I have described this fine species, at the request of Mr. Richmond 

 Thatcher, from a fine specimen handed to me by him. This will make 

 the third species of Volute which this gentleman has brought to light. 



Parttjla peasei, sp. nov. (Plate LII. fig. 2.) 



Shell deeply and openly umbilicated, ovately conical, very broadly 

 inflated towards the base; spire short, broadly conical; whorls 5, 

 convex, last rapidly increasing in size and inflated ; suture im- 

 pressed ; aperture squarely ovate, obliquely produced, lip and colu- 

 mella white, thickened, and broadly reflected, interior of aperture 

 orange-red ; covered with a striated dark chestnut epidermis. 



Length 094, breadth 0*70 of an inch. 



Hab. Solomon Islands (Rainbird). 



I have named this m honour of Mr. Harper Pease of Honolulu. 



Bulimus sellersi, sp. nov. (Plate LII. fig. 3.) 



Shell rimately umbilicated, fusiform, thin, smooth, longitudinally 

 finely striated, and transversely very minutely obsoletely striated 

 towards the apex, apex granularly punctate ; opaque, diaphanous, 

 shining, an impure white colour ; spire acutely turreted, apex obtuse ; 

 whorls 5, the last equalling two-thirds the length of the shell, suture 

 submargined ; aperture oblong, white within ; peristome margined 

 with a dense white, opaque, flat, porcellaneous margin very slightly 

 everted; columella dilating into two pillars, one inserted and gra- 

 dually lost on the last whorl, the other spirally entering the aperture 

 as a prominent thin plate. 



Length l - 90, breadth - C6 of an inch. 



Hab. Gaudalcanar Island, Solomon Islands. 



Evidently belonging to the same group as B. miltocheilus, Reeve. 

 Among the many specimens obtained I find no important variation. 



Helix andersoni, sp. nov. (Plate LII. fig. 4.) 



Shell imperforate, rather thin, depressedly globose, finely striated, 

 yellow-brown, with three or more rather narrow dark chestnut bands 

 round the centre and lower part of the body-whorl, and one beneath 

 the suture ; whorls 6g, almost flat, gradually increasing in size ; 

 aperture diagonal, elongately Innately rounded, lip dark, as is also 

 the covered umbilicus ; margins converging, thin, slightly expanded, 

 columellar margin triangularly dilated, adnate, occluding the umbi- 

 licus and sunk below the marginal line of the aperture, causing the 

 latter to be sharply angled. 



Diam., greatest 1*84, least 1-10; height O80 of an inch. 



