590 MR. E. A. SMITH ON SHELLS [JuilC 2, 



Island by Brencliley during the cruise of the ' Cura§oa,' and Mr. 

 Guppy found it at San Christoval, Ugi, and Santa Anna, all of these 

 localities being at the southern end of the group. As the species 

 has not been recorded from any of the other islands, it is possible 

 its distribution may be confined to San Christoval and the small 

 islands in the immediate vicinity. The variety ft of Pfeiffer (Monog. 

 Hehc. vol. iv. p. 193) was obtained by Mr. Gup|)y at Santa Anna; 

 one of the specimens, which evidently is adult, being more conical 

 above and only 25 millim. across at its greatest diameter, whilst the 

 normal form from San Christoval attains at times an extreme width 

 of 35 millim. Specimens of the typical form, of the same large size, 

 but lacking the red markings on the sutural band and at the keeled 

 periphery, were collected at San Christoval by J. Macgillivray, 

 Esq., during the voyage of H.M.S. ' Herald.' 



A specimen obtained on the north coast of the same island by Mr. 

 Guj)py is worthy of special mention, and may be termed var. picta, 

 on account of the undulating reddish-brown stripes which ornament 

 both the upper and lower surfaces. 



A similar example was also collected by Dr. A. Corrie and 

 presented to the Museum. The markings on these two shells are 

 very striking and distinctly visible within the aperture. 



5. Helix (Corasia) anadyomene, A. Adams & Angas. 



Hab. Ugi I. 



The single specimen obtained by Mr. Guppy is a rather more 

 adult shell than the type, which was presented to the British Museum 

 by Mr. Angas. It has somewhat mere strongly marked lines of 

 growth, is of a rather thicker substance, and has the peristome more 

 thickened and more broadly reflexed. Guadalcanar Island, where 

 this species was first discovered, is a little to the west or north-west 

 of Ugi or Gulf Island. 



6, Helix (Geotrochus) acmella, Pfeiffer. 



Hab, Faro Island and Florida Island. 



Of this species only one variety has previously been mentioned, 

 which is of an almost uniform greenish-yellow tint. A specimen 

 " from the coral-limestone region " of Florida Island has the body- 

 whorl of a salmon-tint and the three topmost volutions bright red. 

 The peristome is white, as in the normal form. 



It seems to me doubtful whether this species is really specifically 

 distinct from H. meta, Pfr. ; for even in the small series in the 

 Museum the gradual transition from one form to another can almost 

 be demonstrated. The greater convexity of the whorls, the broader 

 body-whorl, and consequently the sharper spire, mainly distinguish 

 this species. It was originally said to have come from the Admiralty 

 Islands, the inaccuracy of which locality has since been pointed out 

 by Brazier (Journ. de Conch. 1880, p. 302), who obtained specimens 

 from Bougainville and Ysabel Islands, showing that this species has 

 a rather extended range in this group of islands. 



