Original Descriptions of Achatinclla. 45 



\^ar. C. White, with two dark bands, one entering the aper- 

 ture. Approaches A. fidgcns Newc. 



\'ar. D. White, with 3'ellow or green base. 



Var. E. Yellow, with white bands. 



Var. F. Yellow, fading towards the apex. 



Var. G. Green, fading towards the apex. 



Var. H. Green, passing into gray or brown towards the apex. 



Var. I. Green, with white bands. 



Remarks. Differs from A. phimaia Nob. in the characfler and 

 arrangement of its colors, and from A. fidgois Newc. in the ab- 

 sence of the white sutural band, and the two broad black central 

 bands which characterize that species. 



The specimens found in Niu do not present the green varie- 

 ties, but incline more to white ; and are also thicker and more 

 ovate in form than those found in Palolo. The average weight of 

 full grown specimens from Niu is about 9.00 grains, that of the 

 Palolo specimens is 7.20 grains. 



I have six or eight dextral specimens belonging to varieties 

 D, E, G and I.— Gk. 



Hab. Palolo, Waialae, Wailupe and Niu. — Gk. 



The author's own collecflion exhibits a fine series of these 

 beautiful shells. Man}- of the various color varieties form con- 

 necling links with other groups ; the shell has been well named. 



54. Achatinella trilineata Gulick. 



A. trilineata Gk. Ann. Lye. New York, vi, p. 226, pi. vii, fig. 46. 



Shell sinistral, imperforate, ovate-conic, solid, shining, finely 

 striated, white above, yellow or green at the base, with three black 

 bands, one sutural, one entering the aperture, and the other between 

 the two, revolving just above the suture ; apex somewhat obtu.se ; 

 spire conical, slightly convex ; suture with narrow margin, mod- 

 erately impressed ; whorls 6 1-2, rather convex ; columellar fold 

 central, white or rose, strongly developed ; aperture truncately 

 auriform, white within ; peristome thickened within, with external 

 margin unreflected, arcuate, acute; columellar margin dilated, 

 aduate ; parietal margin wanting. 



Length 0.85 in. (21 3-5 mill. ), breadth 0.48 in. (12 mill.). 



Length of body whorl 0.59 in. ( 15 mill.). 



Average weight 8.60 grains. 



Var. H. With oblique reddish brown streaks above, the base 

 green or yellow. 



Var. C. Yellowish or green throughout, excepting the bands. 



