Descriptions of New Sjjecies of Achat inella. 203 



subacute, tessellated, spire conic with slightly convex outlines ; 

 whorls 6£ or 7, moderately convex, scarcely margined; body 

 whorl regularly rounded, equal to T W of the length ; columella:- 

 fold pale violet, strong, superior ; aperture somewhat oblique, 

 not expanded, roundly semioval, very pale violet within ; peri- 

 stome scarcely reflected, thickened within ; with columellar 

 margin reflected, not impressed ; parietal margin wanting. 



Length 0.S5 inch (21f mill.) ; breadth 0.50 inch. (12^ mill.). 



Length of aperture 0.40 inch (10 mill.). 



Average weight 7.0 grains. 



The dimensions of a large specimen are as follows : 

 Length 1.00 inch (25f mill.) ; breadth 0.53 inch (13i mill.). 

 Length of aperture 0.45 inch (llf mill.). 

 "Weight 7 grains. 



Var. b. — Regularly conical, rather broad at the base ; with 

 spire shortened ; whorls nearly 7, convex, not margined ; aper- 

 ture very oblique, semiorbicular, pale blue within. 



Length 0.75 inch (17 mill.) ; breadth 0.51 inch (13 mill.). 



Length of aperture 0.34 inch (8§ mill.). 



"Weight 6.00 grains. 



Var. c. — Ovate-conic, marble grey, bands usually wanting, 

 within the aperture pale lilac, whorls somewhat swollen be- 

 neath the sutures, columella not so short. This variety passes 

 into the white variety of A. splendid® Newc. 



Var. d. — Lightly tinged with pink both within and without. 



Station. — On trees. Ed. Bailey Jr. ! 



Habitat. — "Wailuku mountain, Maui. Ed. Bailey Jr. ! 



Remarks. — Dr. Newcomb pronounces this to be a variety of 

 his A. sjplendida, but I think the differences too well marked 

 for a doubt in regard to its distinct character, 



