142 Original Descriptions of Achatinella. 



Animal when extended in motion as long as the shell. Mantle 

 slate color margined with brown. Foot light slate, studded on the 

 side and head above with spots of deeper shade. Tentacles short 

 and slender, dark slate. 



The nearest allied species is A. sulcata Pfr., from which it may 

 be distinguished by its small size and more acute keels; The ani- 

 mals also differ and the habitats are widely separated. — Bald. 



Hab. Halawa. — Bald. 



2. She/Is from Maui. 



234. Achatinella cumingii Newcomb. 



A. cumingii Kewc. P. Zool. Soc. London, 1853, p. 150, pi. xxiv, fig. 59. 



Shell sinistral, acuminate, turreted; whorls 6, margined above, 

 planulate ; suture moderately impressed ; aperture oblong-ovate; 

 columella slightly callous; outer lip thin, elliptical; numerous 

 striae, obliquely transverse and well marked, traverse the entire 

 shell, with longitudinal incremental striae more or less developed; 

 color brown, with obsolete white undulations on the superior 

 whorls. L,ong. 16/20, lat. 4/20 poll. 



This species, with the preceding, form, with the A. plicata of 

 Mighels, a group of an excentric and extremely interesting type. 

 — Newc. 



Hab. Haleakala. — Newc. 



