28 LEPTACHATINA, GROUP F. 



33. L. ORYZA (Pfeiffer). PL 3, fig. 59. 



"Shell subrimate, fusiform, somewhat striate, corneous 

 (?) ; spire convexly conical, apex somewhat obtuse; suture 

 light, simple; whorls 7, scarcely convex, the last nearly 

 equal to % of the length, attenuate at the base; aperture 

 scarcely oblique, acuminately oval; columellar fold subcom- 

 pressed, acute; lip simple, erect, columellar margin subre- 

 nexed, adnate. Length 8.0, diam. 3.75, length of apert. 3.6, 

 diam. 2 mm." (Pfeiffer.} 



Oahu, subfossil (Frick, Newcomb) : Keawaawa (Gulick). 



Achatinella 1 (Leptachatina) oryza PFEIFFER, P. Z. S. London, 

 1855, Feb., 1856, p. 206. Achatinella tritacea GULICK, Ann. 

 Lye. N. Y., vi, Dec., 1856, p. 184, pi. 6, fig. 12. Achatinella 

 oryza NEWCOMB, Ann. Lye. N. Y., vi, 1858, p. 322. Acha- 

 tinella (Leptachatina) oryza PFEIFFER, Mon. Hel. Viv., iv, p. 

 567 ; vi, p. 185 ; viii, p. 247. Leptachatina oryza PEASE, P. Z. 

 S. London, 1869, p. 651. Leptachatina tritacea SYKES, P. 

 Malac. Soc. London, iii, 1899, pi. 14, fig. 8. Leptachatina 

 oryza SYKES, Fauna Haw., ii, 1900, p. 367. 



I follow Newcomb and Sykes in placing Gulick 's species 

 tritacea with the one above. The main difference between 

 Gulick 's and Pfeiffer 's specimens is that the former is al- 

 ways imperforate while that of Pfeiffer is distinctly rimate. 

 A specimen of tritacea from Gulick 's collection is figured, pi. 

 3, fig. 52. 



33a. L. o. subcylindracea n. var. PI. 3, figs. 60, 61. 



The shell is smaller than typical specimens of oryza, more 

 cylindrical; the suture is broadly margined; whorls 6%; 

 aperture nearly vertical, slightly contracted. Length 6.6, 

 diam. 2.7, length of apert. 2.6 mm. 



Oahu, fossil (Newcomb). Type no. 57820 A. N. S. P. 



34. L. VANA Sykes. PI. 3, fig. 57. 



"Shell pyramidately conic, dextral, imperforate, somewhat 

 thin, brownish corneous, glossy, under a lens obsoletely longi- 

 tudinally striate, suture marginate ; whorls 8, slowly increas- 

 ing, the last whorl equal to % the length of the shell ; aper- 



