LEPTACHATINA. 



North side of the summit of the peak at intersection of the 

 Waimano-Manaua ridge and the main range, Spalding and 

 Pilsbry. Type 108057 A. N. S. P. 



L. EMERITA Sykes. Vol. XXI, p. 31. 



This widely spread shell occurs as far west as Puuuea near 

 Meyer's lake (Cooke and Pilsbry, 1913). 



L. CONCOLOR Cooke. Vol. XXI, p. 31. 



Common in Kamalo, northwestern ravines ; also ravine east 

 of Puu Kolekole, and another east of Makolelau house (Cooke 

 & Pilsbry, 1913). 



L. MCGREGORI P. & C., 11. Sp. PI. 11, fig. 8. 



The shell is imperforate, ovate and obese, the diameter more 

 than half the length; rather thin, glossy, weakly striate, 

 isabella color, somewhat transparent. Summit obtuse, spire 

 conic above, convexly conic below ; last whorl large, oval. The 

 suture appears narrowly margined, by transparence. The 

 aperture is rather narrow fully half the length of the shell, 

 vertical. Outer lip smooth-edged but not thickened. Colu- 

 mellar lamella median, thin but strongly developed. No per- 

 ceptible parietal callus. Length 6.3, diam. 3.7, aperture 3.2 

 mm. ; 5y 2 whorls. 



West Maui: near Lahaina, at 1000 ft. elevation (R. C. 

 McGregor, 1900). Type no. 110592 A. N. S. P., cotype in 

 Bishop Mus. 



This is perhaps the most obese species of the genus. .It is 

 probably related to L. guttula (Gld.), a decidedly larger shell. 

 L. compacta Pse. is evidently different. L. nitida occidentals 

 is a much larger shell. 



Section ANGULIDENS Pilsbry & Cooke, n. sect. 



Shell ovate-conic or cylindric-conic, having the face of the 

 columella and the edge of the parietal callus thickened, the 

 latter terminating in a callous tubercle which is separated 

 from the termination of the outer lip by a narrow gutter-, 

 aperture contracted. In known species the axis is perforate. 

 Type L. subcylindracea Cooke. 



