10 LEPTACHATINA, GROUP B. 



aperture pyrif orm ; peristome simple, thin ; with dextral mar- 

 gin unreflected, lightly arcuate ; columellar margin reflected, 

 not appressed; parietal margin very thin, vitreous. Length 



7. diam. 2.8 mm. Body whorl 4 mm. long." (Gul.) 

 Oahu: Helemanu, Peula, Kawailoa (Gulick) ; Waianae 



Mts. back of Leilehua (Cooke). 



Achatinella stiria GULICK, Ann. Lye. N. Y., vi, 1856, p. 

 194, pi. 6, fig. 22. Achatinella, (Leptachatina) stiria PFR., 

 Mon. Hel. Viv., vi, p. 187. Leptachatina stiria HARTMAN, 

 Proc. A. N. S. Phila., 1888, p. 55. 



This species is related to the shell which I have referred to 

 as L. sand/ivicensis. The shell is narrower in proportion to 

 its length, spire slenderer, and the surface is slightly more 

 striate. Figured from a cotype. 



8. L. ILLIMIS n. sp. PI. 10, fig. 3. 



The shell is minutely perforate, elongate, light corneous, 

 thin, glossy, subdiaphanous, nearly smooth, under a lens 

 minutely and regularly striate. Spire elongate, attenuate, 

 apex blunt. Suture simple, hardly impressed. Whorls 7, 

 the embryonic rounded, very smooth and polished, the neanic 

 flat, closely coiled, increasing slowly, the last two whorls 

 slightly convex, the last nearly cylindrical, tapering towards 

 the base. Aperture narrowly ovate, acute above, slightly 

 oblique, perpendicular. Columella very slightly arcuate, with 

 a slightly thickened callus along its face, and a rather small 

 oblique fold. Outer lip nearly straight, erect, very minutely 

 thickened within, columellar margin reflexed, adnate for 

 about 1/2 of its length. Umbilicus very minute. Length 7.6, 

 diam. 2.9, length of ap. 2.8 mm. 



Oahu: Palehua in the Waianae Mts. (Cooke). 



This species is closely related to L. stiria, Gulick. It dif- 

 fers, however, in being less distinctly striate, slightly larger, 

 and the columellar fold is stronger and less oblique. 



9. L. SCUTILUS (Mighels). PI. 9, figs. 3, 4. 



"Shell dextral, cylindrical, turreted, white, polished, im- 

 perf orate ; whorls 6, convex ; aperture elongate oval ; lip sim- 



