LEPTACHATINA, GROUP F. 39 



N. S. Phil., 1888, p. 55. SYKES, Fauna Haw., ii, 1900, p. 369. 

 ANCEY, Journ. of Malac. xi, 1904, p. 69. 



Two specimens, presented by Pease to the Philadelphia 

 Academy, have the following measurements : 7.5 x 3.4 and 6.7 

 x 3.0 mm. 



The species belongs to the same type of shell as L. vitreola 

 Gul., L. conicoides Sykes, etc. It is characterized by its 

 elongate spire, which has slightly convex outlines, and rather 

 small perpendicular aperture. The species does not seem to 

 be found in the fossil material from Mana. A specimen re- 

 ceived from Pease is figured. 



49. L. ANCEYANA n. sp. PI. 1, figs. 18, 19. 



The shell is minutely perforate, narrowly ovately conic, 

 whitish (in fossil state), thin, under a lens minutely striate 

 with lines of growth, the embryonic whorls smooth, glossy. 

 Spire ovately conic, apex subobtuse. Suture simple, hardly 

 impressed. Whorls 5%, slightly convex, the last elongate, 

 subcylindrical, tapering to the base. Aperture oblique, nearly 

 perpendicular, subovate, acute at both ends. Columella 

 nearly straight, with a minute, oblique fold. Outer lip 

 slightly arcuate, thickened within, columellar margin reflexed, 

 subadnate, thin, with an acute longitudinal callus along its 

 face. Umbilicus minute, subcircular. Length 5.4, diam. 2.5, 

 length of aperture 2.5 mm. 



Hawaii: Mana, fossil (Henshaw). 



A small species unlike anything from Hawaii. Somewhat 

 like L. ovata from Maui, but smaller and narrower in pro- 

 portion to its length. The surface is minutely and very 

 closely striate with lines of growth. This species is rather 

 abundant in the fossil deposits explored by Dr. Henshaw in 

 Mana. 



50. L. DEFUNCTA n. sp. PI. 1, fig. 16. 



The shell is imperf orate (sometimes minutely perforate), 

 acuminately conic, whitish (in fossil state), embryonic whorls 

 smooth, glossy, the rest dull, under a lens minutely striate 

 with lines of growth. Spire elongately conic, apex obtuse. 



