Original Descriptions cf Achatinclla. 87 



equal to 2-5 of the length, base rotundate ; aperture oblique, truu- 

 cate-obauriform ; columellar fold high, strong, twisted ; lip edged 

 with black, outer margin contraded, slightly expanded, columellar 

 margin dilated, subadnate. 



Hab. Kahana. 



130. Achatinella corrugata Gulick. 



A. corrugata Gk. Ann. Lye. New York, 185S, vi, p. 24S, pi. viii, fig. 66. 



Shell dextral, imperforate, ovate, solid, shining, striated, green; 

 apex subacute, pale ; spire convexl}' conic ; suture margined, mod- 

 erately impressed ; whorls 5 1-2, convex; the last rugose; colu- 

 mellar fold central, white, strong; aperture truncately auriform, 

 white within ; peristome thickened within, white, sometimes mar- 

 gined with brown ; with external margin scarcely reflected anteri- 

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



Length 0.72 in. {i8 1-3 mill. ), breadth 0.40 in. (10 mill.). 



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



Average weight 5.30 grains. 



Remarks. The color is often nearly black, and sometimes 

 reddish 3'ellow. 



It has been placed by Dr. Xewcomb with his A. decipicns, but 

 is more nearly allied to A . rugosa Newc. From the latter it differs 

 in its usually white lip, and the more convex outlines of its spire. 

 The color also fades gradually towards the apex, instead of termi- 

 nating abruptly in white, as in A. riigosa. Sinistral specimens 

 have been found. — Gk. 



Hab. Hakipu. — Gk. 



131. Achatinella torrida Gulick, 



A. torrida Gk. .■\nn. Lye. New York, 1858, vi. p. 250, pL viii, fig. 68. 



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

 what rugose, green or fulvous ; apex subacute, chestnut ; spire 

 conic ; suture lightly margined, white, moderately impressed ; 

 whorls 6, convex ; columella with a strong white fold near the 

 body whorl ; aperture oblique, truncately auriform, white within ; 

 peristome white, thickened within ; with external margin scarcely 

 refledled anteriorly, slightly compressed ; columellar margin 

 dilated, adnate ; parietal margin wanting. 



Length 0.68 in. (17 1-3 mill.), breadth 0.38 in. (9 2-3 mill.). 



Length of body whorl 0.48 in. (12 mill.). 



Average weight 4.50 grains. 



Var. B. With black sj^iral lines. 



