ACHATINELLA VULPINA. 227 



as in fig. lla. Very often, however, the whole base is hazel 

 or chestnut, and the ground yellowish above. The band may 

 be a good deal widened, as in fig. 11&, or much reduced. In 

 one shell it is split (fig. 10). All the specimens seen are 

 sinistral. 



The figures and the above notes are from the type and para- 

 type lots in coll. Boston Society and Academy. I have not 

 studied any recently collected specimens. 



The original descriptions of forms referred to A. vulpina 

 here follow. 



Achatinella prasinus Reeve. " Shell oblong-conical, sinis- 

 tral, whorls convex, obliquely, somewhat rudely impressly 

 striate, columella short, twisted-plaited; very dark green, en- 

 circled with obscure dark lines, white at the apex, columella 

 white. Hab. ?" (Reeve). 



This is the very dark green form of olivacea. Some speci- 

 mens from Newcomb are noticeably roughened, like cucumis 

 Gul. I assume that they were from an unfavorable station. 



Achatinella adust a. (PI. 40, fig. 2, reproduction of original 

 figure) . ' * Shell acuminately oblong, somewhat turrited, sinis- 

 tral ; whorls rounded ; columella short, callous, toothed. Dark 

 chestnut, darker towards the base, with a spiral black band 



beneath the sutures; columella pinkish. Habitat ?" 



(Reeve). 



A. cucumis Gulick. (PL 40, figs. 6, 6a, Gulick coll.). 

 "Shell sinistral, imperf orate, acuminately oblong, solid, shin- 

 ing, striated, green ; apex rather obtuse ; spire turreted ; suture 

 margined, impressed; whorls 6, convex; columellar fold cen- 

 tral, white, moderately developed. Aperture oblique, sinu- 

 ately oval, white within ; peristome thickened within, with ex- 

 ternal margin unreflected, arcuate, acute; columellar margin 

 dilated, adnate; parietal margin wanting. Length 19, 

 breadth 9% mm.; length of body-whorl 13 mm. Average 

 weight 5.2 grains. 



' ' Var. &. Of a burnt yellow color. 



"Var. c. "With one or more obscure brownish bands. " 

 (Gulick). 



Oahu: Kalihi, on trees (Gulick). Kalihi to Moanalua 

 (Baldwin). 



