XXIX. — Descriptions of New Species of Achatlnella, from 

 the JIawaiian Islands. 



By J. T. Gulick. Head June 10, 1856. 



l. AchatinelJa leucochila. 



Plate VI. Fig. 1. 



T. dextrorsa, imperforata, ovato-turrita, nitida, semipellucida, cornea^ 

 longitudinaliter creberrime striata ; apice obtusa ; spira turrita ; sutura 

 anguste margiuata, inodice impressa ; anfr. 7-8, convexiusculis ; plica 

 columellari sub-basali, alba ; apertura sinuato-pyriformi ; perist. albido, 

 sub-labiato ; margine dextro recto, arcuato ; columellari dilatato, albo, 

 adnato ; parietali tenuissirno, corneo. 



Shell dextral, imperforate, ovately turreted, shining, semi- 

 pellucid, corneous, with crowded longitudinal striaa ; apex 

 obtuse ; spire turreted ; suture finely margined, moderately 

 impressed ; whorls 7-8, somewhat convex ; columellar fold 

 sub-basal, white ; aperture sinuately pyriform ; peristome pal- 

 lid, with slight callous thickening ; dextral margin unreflected, 

 arcuate ; columellar margin dilated, white, adnate ; parietal 

 margin very thin, corneous. 



Length 0.44 inch (11 mill.). Breadth 0.19 inch (If mill.). 



Length of body-whorl 0.26 inch (6| mill). 



Average weight 0.50 grain. 



Station. — On the ground. E. Johnson. ! 



Habitat. — Kauai. E. Johnson. ! 



Remarks.- — Is allied to A. cameola Pfr., and A. cingula 

 Migh., but is readily distinguished by its more slender form, 

 smaller size, and less convex spire. Its thickened, pallid lip 

 distinguishes it from others of a similar size and form. 



