n8 Original Descriptions of Achatinella. 



Station. On the Alii and other low trees, in damp elevated 

 regions.— (E. B.)Gk. 



Remarks. This species differs from A. indicia Nob. in its 

 smaller size, more acuminate form, lighter color, and in the pol- 

 ished exterior of some of its varieties. 



Hab. Wailuku.— (E. B.)Gk. 



Newcomb places this species with A. leirbra Newc. 



190. Achatinella crocea Gulick. 



A. crocea Gk. Ann. Lye. New York, 185S, vi, p. 211, pi. vii, fig-. 36. 



Shell dextral, perforate, conic-ovate, solid, scarcely shining, 

 lightly striated, and microscopically distinctly decussated with 

 crowded undulating spiral lines, orange-yellow; apex subacute, 

 obliquely marked with white and yellow; spire conical; suture 

 simple, slightly impressed; whorls 6, somewhat convex, the last 

 slightly flattened in the middle, equal to 0.71 of the whole length; 

 columellar fold moderately developed, white; aperture slightly 

 oblique, sinuously oval, snowy white within; peristome not ex- 

 panded, moderately thickened within; with columellar magin 

 dilated, white, unattached; parietal margin wanting. 



Length 0.70 in. (18 mill.), breadth 0.40 in. (10 mill.). 



Length of aperture 0.37 in. (9 2-5 mill.). 



Weight 4.00 grains. 



Hab. Waihee; rare.— (E. B.) Gk. 



Baldwin places this with A. lignaria, as a color variety. 



TAPPANIANA GROUP. 

 191. Achatinella tappaniana C. B. Adams. 



A. tappaniana Ad. Contrib. to Conch., 1850, p. 126. 



Shell reversed, elongate ovate-conic; pure white, with one 

 narrow brown spiral band at the periphery of the last whorl; with 

 very unequal and irregular transverse striae, and numerous exces- 

 sively minute wrinkled spiral impressed lines ; apex subacute; 

 spire elougate, with the outlines a little curvilinear; whorls nearly 

 even, moderately convex, and more or less subangular, margined 

 above, with a well impressed suture; aperture ovate; lip well 

 thickened within the margin, expanded much anteriorly, but not 

 alone; columellar fold strong. 



I^ength 1.06 in., breadth .55 in. 



Length of aperture .44 in. 



Hab. Lahaina. 



