74 Original Descriptions of Achatinelta . 



auriform, white within ; peristome slightly thickened within ; with 

 external margin unrefletled, arcuate, acute ; columellar margin 

 dilated, adnate ; parietal margin very thin. 



lycngth 0.71 in. (18 mill.), breadth 0.41 in. (ro 2-5 mill.). 



Length of body whorl 0.50 in. (13 mill.). 



Average weight 4.40 grains. 



Var. B. With a black sutural band ; columellar fold usually 

 white, sometimes lilac. 



Var. C. Yellow, with smoother surface, approaching A. recta 

 Newc. 



Station. On the trees of the Pua, Ahakea, and Ohawai {Lo- 

 belia grimesiana) . 



Remarks. Dr. Newcomb has placed this with A . curta Newc, 

 but I consider it quite distinct. About a fifth of my specimens 

 are dextral. — Gk. 



Hab. In the forest between the streams of Waimea and Ka- 

 wailoa. — Gk. 



This shell seems to connect this group with the albescens group 

 of shells found near Waimea and Kahuku. 



I 



ALBESCENS GROUP. 

 106. Achatinella albescens Gulick. 



A. albescens Newc. Ann. L,yc. New York, vol. vi, 1S58, p. 237, pi. viii, fig. 57. 



Shell sinistral, sometimes dextral, imperforate, ovate-conic- 

 solid, shining, striated, white or sometimes yellowish ; apex some, 

 what acute ; spire convexly conical ; suture marginate, well im- 

 pressed ; whorls 6, somewhat swollen beneath the suture, and 

 slightly flattened in the middle ; columellar fold central, white, 

 strong; aperture truncately auriform, white within; peristome 

 thickened within ; with external margin unreflecfted, slightly arcu- 

 ate ; columellar margin dilated, adnate ; parietal margin wanting. 



Length 0.70 in. (18 mill.), breadth 0.42 in. (10 2-3 mill.). 



Length of body whorl 0.51 in. (13 mill.). 



Average weight 4.60 grains. 



Station. On the leaves of the Pua, Ahakea, and Lama. 



Remarks. Nearly a third of the specimens from Waimea and 

 Pupukea are dextral, but in Waialee. the metropolis of the species, 

 they are always sinistral. — Gk. 



Hab. Waimea, Pupukea, Waialee, Kahuku, and Hauula. 

 — Gk. 



