20 



aperture, oval, small, with a delicate fold on the left side ; lip 

 simple, acute. Length, i inch, diameter, ^^^j inch. Hab. Oahu. 



BuLiMUS scuTiLUS. Shell dextral, cylindrical, turreted, white, 

 polished, imperforate ; whorls six, convex ; aperture elongate- 

 oval ; lip simple, acute. Length, /g- inch, diameter, -3^5- inch. 

 Hab. Oahu. 



BuLiMus CLAUsiNus. Shell dextral, ovate-conic, thick and 

 solid, white, smooth, glossy, sometimes with an obscure, narrow, 

 yellowish band, revolving with the suture and passing over the 

 middle of the body whorl ; whorls five, convex ; aperture subo- 

 vate ; lip yellowish, thickened, coalescing with the body whorl 

 and forming an enamel on the left side of the aperture. Length, 

 about -^Q inch, diameter, f inch. Hab. Hawaii. 



Partula virgulata. Shell ovate-conic, light fawn color, beau- 

 tifully adorned with dark brown bands, more or less numerous, 

 imperforate ; whorls five, convex ; incremental striae delicate ; 

 aperture oblong; lip reflected, slightly inflected. Length, 1 inch, 

 diameter, f inch. Hab. Waianai. 



Achatina accineta. Shell dextral, conical, horn color, 

 smooth, polished, imperforate ; whorls six, convex, with an 

 impressed revolving line just below the suture ; aperture semi- 

 ovate ; lip simple, acute. Length, ^-^ inch, diameter, fg- inch. 

 Hab. Oahu. 



Achatina tdrricula. Shell cylindrical, turreted, sometimes 

 dark, sometimes light brown, imperforate ; whorls ten, convex, 

 more or less distinctly striate transversely ; incremental strios 

 coarse ; aperture oblong ; lip simple, acute. Length, 2| inches, 

 diameter, f inch. Hab. Oahu. 



Achatinella nubtlosa. Shell dextral, ovate, conic, thin, 

 variously mottled with dark brown on a light ground, imper- 

 forate ; whorls six, convex ; aperture semicircular ; lip simple, 

 acute. Length, -^^ inch, diameter, | inch. Hab. Oahu. 



Achatinella vestita. Shell sinistral, acuminate-conical, 

 light brown, or white, with beautiful, narrow, dark brown bands, 

 more or less numerous, imperforate ; whorls six, convex ; aper- 

 ture semilunate ; lip reflected. Average length, 1 inch, di-ume- 

 ter, ^ inch. Hab. Waianai and Hawaii. 



Achatinella viridans. Shell dextral, elongate-conic, green, 

 with light streaks intermixed, imperforate ; whorls five, convex, 

 with a revolving, slightly impressed line below the suture ; aper- 



