144 ACHATINELLA PULCHERRIMA. 



shell, which is nearly free from dark streaks. The lip has a 

 narrower black edge than well-colored ~byronii, and has a white 

 rim within. The figures, from a large set in the GuMck col- 

 lection, show the range of color from mahogany to yellow, 

 with or without bands. Except in the usually darker 'colora- 

 tion, I can see no reason for separating mahogani from pul- 

 cherrima. Gulick 's description follows. His figure is like 

 pi. 27, fig. 4a, which is exactly like the type-specimen. 



" Achatinella mahogani. Shell dextral, imperf orate, tur- 

 reted, solid, shining, striate, reddish chestnut; apex obtuse, 

 rose ; spire -concavely turreted ; suture lightly margined, mod- 

 erately impressed ; whorls 6, convex, the last inflated, with the 

 base black-chestnut and regularly rounded; columellar fold 

 central, white, strong; aperture truncately auriform, white 

 within, with external margin scarcely reflected anteriorly, 

 arcuate; columellar margin dilated, adnate; parietal margin 

 wanting. Length 20.6, breadth 11, length of body-whorl 12 

 mm. Average weight 8 grains, 



"On trees, Ahonui and Kalaikoa, J. T. G. It lacks the 

 black color of lip and suture which characterizes A. melano- 

 stoma Newc. and A. limbata Nob v and 'also differs in the gen- 

 eral form and color" (Gulick) . 



A form which would be referred to mahogani if it occurred 

 on the south side of the main range is in the Gulick collection 

 (no. 125 ; no. 92461 A. N. S. P.) , with the locality Kahana. It 

 is not unlike Pfedffer's figure of A. planospira except that 

 the base is not abruptly darker as in that figure. It differs 

 from Kahana dedpiens by having light brown early whorls 

 instead of white. 



6a. A. PULCHERRIMA NYMPHA Gulick. PL 32, figs. 13, 14 ; pL 

 27, figs. 7, 7a, 7&. 



"Shell dextral, imperf orate, oblong-ovate, solid, shining, 

 very lightly striated, yellow or chestnut, sometimes lined with 

 brown." Interior and columellar fold white. Peristome 

 well thickened within close to the edge, white, or in banded 

 shells showing marginal spots. Dark chestnut shells have a 

 narrow dark lip-border. Length 18.5, diam. 10 mm. 



