OHo27ial Descriptions of Achatinella. 103 



paulo superante, ventroso, basi subcomprcsso ; apertura obliqua, obauriformi, 

 intus alba; plica columcllari alta, dcntiformi, alba ; perist. tenui, intus sub- 

 labiato. niargine dextro angustc cxpanso, columellari dilatato. patente. 

 Long. 17, diam. 10 mill. 



Shell perforate, ovate-conic, quite thin, lightly striated, hard- 

 ly shining, pale yellow, variegated with narrow brownish bands 

 and stripes ; spire conic, somewhat acute ; suture hardly margin- 

 ate ; whorls 6, convex, the last slightly longer than the spire, in- 

 flated, base subcom pressed : aperture oblique, obauriform, white 

 within; columella fold high, dentiform, white; lip thin, slightly 

 thickened within ; dextral margin narrowly expanded, columellar 

 margin dilated, spreading. 



Hab. Kalae. 



It is doubtful just where to place this shell. From the plate 

 it is a dextral shell of about the size of A. bella Rve., and may be 

 related to the yellowish forms of that .shell. Dr. Cooke found the 

 shell in the British Museum under this name, to be in shape like 

 a small virgulata. The fourth and fifth whorls are of a dull yellow- 

 ish brown color, with numerous bauds of a slightly darker shade 

 on the fifth whorl. 



J. SJiclls from Lauai. 



163. Achatinella crassa Newcomb. 



A. crassd Newc. P. Zool. Soc. [.ondon, 1853, p. 153, pi. .x.xiv. Rg. 71. 



Shell dextral, conical, solid, pointed at the apex ; last whorl 

 ventricose ; .stride decussating ; whorls 6, rounded ; suture moder- 

 ate ; aperture subovate ; columella short, terminating in a \evy 

 strong plait ; lip white, broadly expanded and sul>reflecfted ; um- 

 bilicus open ; colour dark chestnut sprinkled with white, with 

 a white subcentral band on the last whorl. Long. 16/20, lat. 

 10/20 poll. 



This shell in form approaches the genus Partula. Ha\ing 

 obtained the specimens alive, I have been enabled to examine the 

 animal, and can find no marks to distinguish it from the common 

 tyi)e of the genus Achatinella. — Newc. 



Hab. Koele. — Perkins. 



