2 LEPTACHATINA. 



L. SAGITTATA P. & C. n. Sp. PL 11, fig. 9. 



The shell is minutely perforate, similar to L. lanceolata 

 but more slender, light cinnamon, glossy, with faint growth 

 striae; summit very obtuse, whitish. Outer lip obtuse, not 

 thickened. Columella straight in front view, its edge re- 

 flected over the perforation. In oblique view in the aperture 

 a small, vertical lamella may be seen, standing at a right 

 angle with the plane of the peristome, further in and stronger 

 than in L. lanceolata. Length 6.2, diam. 2.2 mm. ; 6^2 

 whorls. 



Molokai : Pipe-line trail, upper Kaunakakai. Cooke & 

 Pilsbry, Jan., 1913. 



L. molokaiensis, with six whorls, is a larger shell, having 

 the columella more sinuous, and the columellar margin ap- 

 pressed. L. lanceolata is a more conic shell with wider last 

 whorl. It is common in the same station with L. sagittata. 



L. LANCEOLATA Cooke. Vol. XXI, 65. 



Pipe-line trail in upper Kaunakakai ; northwestern ravine 

 of Kamalo (Cooke & Pilsbry). 



L. TRITICEA (Gulick). Vol. XXI, pi. 3, fig. 52. 



11 Shell dextral, imperf orate, elongately ovate, thin, shin- 

 ing, pellucid, pale corneous, very finely striated; apex some- 

 what acute, pallid ; spire convexly conic ; suture simple, lightly 

 impressed; whorls 6%, rather convex; columellar fold cen- 

 tral, white, sublamelliform. Aperture sinuately pyriform; 

 peristome scarcely thickened within ; with dextral margin un- 

 reflected, arcuate ; columellar margin dilated, corneous, ad- 

 nate ; parietal margin wanting. Length 8%, breadth 4, length 

 of body- whorl 5% mm. Average weight .17 grains. " 

 (Gulick.) 



Oahu: Keawaawa, on the ground (J. T. Gulick!). 



Achatinella triticea GULICK, Annals of the Lyceum of Na- 

 tural History of New York, vi, 1856, p. 184, pi. 6, f. 12. 

 Leptachatina triticea Gulick, SYKES, Proc. Malac. Soc. Lon- 

 don, iii, p. 276, pi. 14, f. 8, 1899. L. tritacea Gulick, COOKE, 

 Man. Conch, xxi, p. 28. 



