LEPTACHATINA, S.-G. ILIKALA. 91 



Length 8.9, diam. 4.4, length of apert. 4.3 mm.; whorls 

 51/2 ; Konahuanui. 



Length 10.5, diam. 4.5, length of apert, 4.5 mm.; whorls 

 614 ; Nuuanu. 



115a. L. f. striatella (Gulick). PI. 4, figs. 70, 71, 72. 



The shell is very slightly narrower in proportion to its 

 length, the costae are slightly finer and the aperture is more 

 perpendicular, with the outer lip less arcuate. 



Length 10.0, diam. 4.4, length of apert. 4.2 mm. 



Oahu: Mountain range of Keawaawa, in damp places 

 (Gulick). 



Achatinella striatella GULICK, Ann. Lye. N. Y., 1856, vi, 

 p. 178, pi. 6, fig. 6. Achatinella fusca NEWCOMB, Ann. Lye. 

 N. Y., 1838, vi, p. 330. Leptachatina striatella SYKES, P. 

 Malac. Soc. London, iii, pi. 14, fig. 190 ; Fauna Haw., ii, 1900, 

 p. 370. 



116. L. FRATERNA n. sp. PI. 12, figs. 8, 11. 



The shell is minutely perforate, elongately conic, dark 

 brown, rather thin, costulate (the embryonic whorls trans- 

 versely costulate and under a strong lens indistinctly spirally 

 striate). Spire conic, apex rather blunt. Suture deep on 

 the embryonic whorls, on the other whorls hardly impressed. 

 Whorls 6y 2 > very slightly convex, increasing regularly, the 

 last subcylindrical, tapering gradually to the base and as- 

 cending slightly in front. Aperture subovate, bordered with 

 yellowish brown, brown within, very slightly oblique, perpen- 

 dicular. Columella nearly straight, whitish, almost truncate 

 with a rather weak fold and with an acute callus along its 

 face. Outer lip regularly curved, slightly thickened within, 

 forming an angle with the base of the columella ; columellar 

 margin thin, reflected, the upper one-third adnate. Umbilicus 

 minute. Length 9.4, diam. 4.3, length of ap. 4.1 mm. 



Kauai (Baldwin). 



This species is very closely related to L. fusca Newc., from 

 Oahu. It differs, however, in having flatter whorls and a 

 more conic spire ; the aperture is less diagonal. 



