594 MR. E. A. SMITH ON SHELLS [JunC 2, 



both H. sebacea and H. cerealis under examination, I have no hesi- 

 tation in pronouncing tliem identical, 



16. Helix (Videna) sanctjs ann^. (Plate XXXVI. fiss. 7, 

 7 b.) 



Shell depressed-conoid, deeply umbilicated, very acutely keeled 

 at the periphery, light brown, sometimes with a few radiating pale 

 streaks on the upper surface, sculptured with oblique lines of growth. 

 Whorls 5, rather slowly increasing, slightly convex, depressed and 

 margined above the suture, last not descending, compressed above 

 and below the keel, a little convex towards the umbilicus, which is 

 moderately lai'ge. xlperture transverse, flesh-tinted within. Peri- 

 stome simple, a little thickened along the basal margin, with the ex- 

 tremities united by a thin callus. Height 7 millim. ; greatest 

 diameter 17, smallest 1.5. 



Hah. Santa Anna. " Living generally on the trunks of cocoa- 

 nut palms" (Gitppy). 



This species is very like H. latimarginata. Smith, from the Fiji 

 Islands and Contrarietes Island, Solomon group ; but is a trifle 

 larger, more widely umbilicated, has a less convex spire, and a 

 broader body-whorl. The pale streaks on the upper surface are 

 like those in //. merziana, Pfr., but they do not occur in all ex- 

 amples. 



17. Helix (Rhytida) villandrei, Gassies. 



Hah. Ugi Island {Gujipy) ; San Christoval (^Macgillivray, Angus, 

 and Brazier). 



18. Helix (Cam^na) hombroni, Pfeifl'er. 



Hub. Shortland and Faro Islands {Guppy) ; Ysabel Island 

 {Brenchley in Brit. Mus.) ; Solomon Islands {Hombron and Jac- 

 quinot). 



"Admiralty Islands," the locality originally assigned to this species, 

 is evidently incorrect. 



19. Helix (Chloritis) eustoma, Pfeiffer. 



Hab, Ugi and Faro Islands (Guppy) ; New Georgia (Macyil- 

 livray). 



With this species should be united H. erinacevs of Pfeiffer, for 

 having carefully compared the types of both forms, I do not find 

 any diff'erence, and therefore conclude that H. eustoma is another 

 instance of a species wrongly assigned to the Admiralty Islands. 



20. BuLiMus (Placostylus) cleryi. Petit. 



Hab. " The Koofeh district on the north coast of San Christoval" 

 (Guppy). 



This remarkable species varies considerably in form, some speci- 

 mens being much constricted round the middle of the body-whorl 

 and much more slender than others, which show no trace of irregu- 

 larity of outline. The type figured by Petit has a length of 100 



