72 LEPTACHATINA, GROUP O. 



whorls 9, flatly convex, scarcely angulate and crenulate at 

 the suture ; suture impressed ; spire somewhat obtuse ; aperture 

 small, short, oval, slightly oblique; columella short, simple; 

 columellar fold compressed, scarcely prominent, oblique ; lip 

 scarcely thickened ; the spire often ashy brown, the last whorl 

 reddish brown. Length 11.0, diam. 4.0 mm." (Pease). 



Kauai: Kaholuamano (Perkins) ; Lehuamakanoe, Kumuwela 

 (Cooke). 



Leptachatina extensa PEASE, P. Z. S., 1869, p. 651 ( nom. 

 sol.) ; Journ. de Conchyl., 1870, p. 92. SYKES, Fauna Haw., 

 ii, 1900, p. 362. Achatinella (Leptachatina) extensa PFR., 

 Mon. Hel. Viv., viii, p. 249. 



The shells from Lehuamakanoe are slightly larger and 

 those from Kumuwela slightly smaller than the measurements 

 given by Pease. The former measuring, length 12.5, diam. 



4.5, length of aperture 4.0 mm. ; the latter, length 10.1, diam. 



3.6, length of aperture 3.4 mm. 



This species differs from any of the other Kauaian species. 

 Its chief characters are its closely coiled, almost flat whorls 

 and the very fine and close striae. The species seems to re- 

 stricted to the higher altitudes. 



95. L. GAYI n. sp. PL 7, figs. 39, 40. 



The shell is perforate, ovately turrited, dark brown, thin, 

 subdiaphanous, regularly, though somewhat distantly costate. 

 Spire ovately turrited, apex obtuse. Suture scarcely im- 

 pressed, not margined, crenulate. Whorls 7, nearly flat, 

 rather compressed, the embryonic smooth, yellowish, the last 

 cylindrical above, tapering towards the base. Aperture 

 nearly ovate, slightly angled below, perpendicular, very 

 slightly oblique. Columella straight, not truncate, with a 

 very small, oblique and deeply situated fold and a slight 

 acute callus along its face. Outer lip regularly curved, thick- 

 ened within. Umbilicus large, (for the genus), nearly cir- 

 cular, with its margin angulate. Length 8.0, diam. 3.8, 

 length of aperture 3.3 mm. 



Kauai: Makaweli (Cooke). 



This species is most closely related to L. fusca Newc. from 



