Descriptions of New Species of Achatinella. 221 



vexiusculis ; plica columellari mediana, rosea vel alba ; apertura obliqua ; 

 truncato-auriformi ; perist. aeuto, intus incrassato; margine columellari 

 dilatato, adnato ; parietali nullo. 



Shell sinistral, very rarely dextral, imperforate, ovately or 

 elongately conic, solid, shining, striated, white or variously 

 painted with yellow or green ; apex subacute ; spire conic ; 

 suture marginate, moderately impressed ; whorls 6£, somewhat 

 convex ; columellar fold central, strong, rose or white ; aper- 

 ture oblique, truncately auriform ; peristome acute, thickened 

 within ; with columellar margin dilated, adnate ; parietal mar- 

 gin wanting. 



Length 0.83 inch (21 mill.) ; breadth 0.45 inch (llf mill.). 



Length of body whorl 0.61 inch (15| mill.). 



Length of aperture 0.42 inch (10f mill.) ; an average spe- 

 cimen. 



Greatest length 0.99 inch (25 mill.). 



Average weight 8.00 grains. 



Station. — On trees. J. T. G. ! 



Habitat. — Palolo, "W aialae, Wailupe, and Niu, Oahu. J. T. G. ! 



Var. a. — Pure white, except the columella, which is fre- 

 quently lilac or rose. PL VII. Fig. 42a. 



Var. I.— White, with one black band. PI. VII. Fig. 425. 



Var. c. — White, with two dark bands, one entering the 

 aperture ; approaches A.fulgens Newc. 



Var. d. — White, with yellow 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 grey or brown towards the 

 apex. 



Var. i. — Green, with white bands. 



