12 LEPTACHATINA, GROUP B. 



ated, almost perpendicular lamella. Outer lip slightly arcu- 

 ate, columellar margin reflexed, adnate. Length 7.6, diam. 

 3.5, length of ap. 3.1 mm. 



Molokai: Mapulehu Ridge (Thaanum). 



There is a unicolorous brownish corneous variety, which 

 has the eolumellar fold more strongly developed. 



This species is somewhat related to L. lanceolata. It is, 

 however stronger and stouter, and differs in its color pattern. 



11. L. FULGIDA n. sp. PI. 2, figs. 39, 40. 



The shell is imperforate, elongately ovately conic, green- 

 ish yellow, except the whitish embryonic whorls, rather thin, 

 hardly diaphanous, glossy, very smooth, under a strong lens 

 hardly striate. Spire elongate, subconic, apex subobtuse. 

 Suture slightly impressed, narrowly margined, accompanied 

 with a very narrow reddish line. Whorls G 1 /^, the embryonic 

 convex, the third and fourth nearly flat, the last two slightly 

 convex, the first 4i/o closely coiled, the last two increasing 

 more rapidly, the last subcylindrical, tapering to the base. 

 Aperture subovate, slightly oblique, nearly perpendicular. 

 Columella nearly straight, purplish, with a rather small ob- 

 lique lamella. Outer lip dark brown, arcuate, slightly thick- 

 ened within; columellar 'margin adnate. Length 6.9, diam. 

 2.9, length of ap. 2.8 mm. 



West Maui : Mt. Lihau, Mt. Kukui, Akau-ka-imu, Ahoa 

 (Thaanum). 



A beautiful glossy shell related to L. grana Newc., but 

 smoother, more glossy, with a more elongate spire, of which 

 the upper whorls are flatter and more closely coiled. 



From L. baldivini it differs in size, its smoother and more 

 glossy surface; the shell is thicker, and the last two whorls 

 increase more rapidly. 



12. L. BALDWINI n. sp. PI. 2, figs. 33, 41. 



The shell is minutely perforate, elongately turrited, cor- 

 neous, thin, subdiaphanous, minutely striate, especially below 

 the suture. Spire elongately conic, apex obtuse. Suture 

 scarcely impressed, crenulate, not margined. Whorls 



