32 LEPTACHATINA, GROUP F. 



late. Whorls 7, slightly convex, the last elongate, tapering at 

 the base. Aperture slightly oblique, perpendicular, narrowly 

 ovate. Columella twisted, nearly straight, with a rather 

 small oblique lamella. Outer lip very slightly arcuate, 

 slightly thickened within, columellar margin thin, renexed, 

 adnate. Length 8.6, diarn. 3.5, length of ap. 3.4 mm. 



Molokai: Kamalo (Thaanum). 



In texture and color this species approaches L. ementa 

 Sykes. The form of the shell is different and the aperture 

 is narrower, with a stronger columellar fold. In form it is 

 somewhat related to L. l&vigata Cooke but differs in propor- 

 tion of length to breadth, texture of its surface, etc. 



40. L. CONICOIDES Sykes. PI. 6, figs. 11, 14, 15. 



"The shell is conically ovate, imperf orate, dextral, some- 

 what thin, corneous, crenulate at the sutures; whorls 6, i;he 

 last equal to 4/7 the length of the shell ; suture subimpressed ; 

 aperture subvertical, sinuately oblong, with the dextral mar- 

 gin slightly thickened, columellar margin renexed, adnate, 

 furnished with a small, compressed, oblique fold, the mar- 

 gins united by a thin callus. Length 7.5, diam. 3.5 mm." 

 (Sykes.} 



Molokai (Perkins): near Waikolu (Cooke). 



Leptachatina conicoides SYKES, Fauna Haw., ii, 1900, p. 

 359, pi. xi, fig. 26. 



"A somewhat conic shell, in which, when adult, the colu- 

 mellar plait becomes inconspicuous." (Sykes.} Fig. 11 is 

 a copy of the original figure. 



Lept. emerita is somewhat related to this species, it is usu- 

 ally larger, the suture is not crenulate and the spire is con- 

 vex in outlines. A single specimen of this species from near 

 Waikolu measures as follows: length 7.5, diam. 3.5, length 

 of aperture 3.4 mm. 



41. L. VARIA n. sp. PI. 11, fig. 1. 



The shell is imperforate, ovately conic, dark brown, with a 

 narrow indistinct whitish band accompanying the suture, some- 

 what solid, glossy, nearly smooth, under a lens minutely striate 



