72 Original Descriptions of Achatinella. 



reflected, arcuate, acute, bordered with brown ; coluniellar margin 

 dilated, adnate ; parietal margin wanting. 



Length 0.66 in. (17 mill.), breadth 0.36 in. (9 mill.). 



Length of body whorl 0.44 in. (11 1-5 mill.). 



Average weight 3.90 grains. 



Var. B. With a third brown sutural line. 



Var. C. With one black spiral band passing above the suture. 



Var. D. With a white band encircling the base between the 

 two black bands ; very rare. 



Remarks. This species bears the same relation to A. livida 

 Swains., that A. recta Newc. bears to A. curta Newc. — Gk. 



Hab. Kawailoa. — Gk. 



102. Achatinella contracta Gulick. 



A. contractu Gk. Ann. L,yc. New York, vol. vi, 1858, p. 239, pi. viii, fig. 59. 



Shell sinistral, imperforate, broadly conic, solid, shining, stri- 

 ated, ash or fawn colored, with two black bands, one sutural, the 

 other revolving just above the suture on the spire, and encircling 

 the base near the periphery of the body whorl ; apex somewhat 

 acute, white with brown suture ; spire regularly conic ; suture 

 marginate, moderately impressed ; whorls 5 1-2, slightly convex; 

 the last large; coluniellar fold central, white, strong; aperture 

 truncately auriform, white within; peristome thickened within; 

 with external margin unreflected, arcuate, subacute ; coluniellar 

 margin dilated, adnate ; parietal margin wanting. 



Length 0.53 in. (13 1-2 mill.), breadth 0.36 in. (9 mill.). 



Length of body whorl 0.39 in. (10 mill.). 



Average weight 4.00 grains. 



Remarks. The sutural band is sometimes wanting, and some 

 specimens have another band entering the aperture. I have but 

 one specimen from Hauula, which is of the latter mentioned variety, 

 and rather larger than those from Kaawa. 



It is allied to A. zonata Nob. and A. tindulata Newc. — Gk. 



Hab. Kaaawa. — J. S. Emerson. Hauula. — Gk. 



103. Achatinella delta Gulick. 



. 1 . delta Ok. Ann. L,yc. New York, vol. vi, 1858, p. 231, pi. viii, fig. 50. 



Shell sinistral, imperforate, conic, obliquely truncated at the 

 base, solid, shining, striated, yellow at the base, paler above, with 

 two or three ash-brown bands ; apex rather obtuse, white ; spire 

 conic ; suture marginate, lightly impressed ; whorls 5 1-2, slightly 



