gi Original Descriptions of Achatiyietta . 



white within : peristome thickened within : with external margin 

 slightly reflecled anteriorly, arcuate, white, or brown ; cohimellar 

 margin retlected. detached, white : parietal margin very thin. 



Length 0.80 in. (20 1-3 mill. ), breadth 0.44 in. (11 1-5 mill.). 



Length of body whorl 0.55 in. ( 14 mill. ). 



Average weight 7.00 grains. 



Remarks. Sinistral specimens are sometimes found which 

 resemble A. obliqua. but are readily distinguished by the darker 

 coloring around, and upon the lip. I have from Hauula a few 

 specimens which seem to belong to this species. Some of them 

 are nearly white. — Gk. 



Hab. Kahana. — Gk. 



Mr. Baldwin places this with A. obliqua Gk. as a dextral 



variety . 



141. Achatinella rotunda Gulick. 



A. rotunda Gk. Ann. Lvc. New York. \n, 1S58, p. 249. pi. viii. fig, 67. 



Shell sinistral, imperforate, ovate, obliquely truncated at the 

 base, solid, shining, striated, of black chestnut color, with a broad 

 white or yellowish chestnut band beneath the suture : apex obtuse, 

 chestnut : spire convexly conic : suture margined, black, well im- 

 pressed : whorls 6, convex : the last large, rounded : columellar 

 fold central, white, strong: aperture oblique, truncately auriform; 

 peristome black, slightly thickened within ; with external margin 

 slightly reflec'ted anteriorly, arcuate : columellar margin dilated, 

 adnate : parietal margin wanting. 



Length 0.83 in. (21 mill. ). breadth 0.50 in. {13 mill.). 



Length of body whorl 0.61 in. (15 1-2 mill.). 



Average weight 8.80 grains. 



Remarks. There is a variety with two black bands which 

 resembles certain forms of A. ovata Xewc, but is distinguished b}- 

 its black suture and its thinner and more regularly arcuate lip. 

 Its bands are also deep black, while those of A. ovata are brown 

 as those in A. bidimoides Swains. — Gk. 



Hab. Kaaawa and Kahana. — Gk. 



BULIMOIDES GROUP. 

 142. Achatinella bulimoides Swainsou. 



A. bulimoides .Swain. Zool. 111., iii. p. loS. fig. i, 1S32. 



A. testa ovato-oblonga . subventricosa. albente, fasciis castaneis ; spira 

 incrassata, apice fusco. 



