Original Descriptions of Achatinclla. 113 



182. Achatinella baileyana Gulick. 



A. baileyana Gk. Ann. Lye. New York, vi, 1856, p. 202, pi. vii, fig. 31. 



Shell sinistral, perforate, ovate-conic, solid, shining, fiuel} r 

 striated, microscopically very minutely decussated, with fine ob- 

 lique white streaks, and narrow black spiral lines ; apex subacute, 

 tessellated, spire conic with slightly convex outlines; whorls 61-2 

 or 7, moderately convex scarcely margined ; body whorl regularly 

 rounded, equal to 66-100 of the length; columellar fold violet, 

 strong, superior, aperture somewhat oblique, not expanded, round- 

 ly semioval, very pale violet within; peristome scarcely reflected, 

 thickened within; with columellar margin reflected, not impressed; 

 parietal margin wanting. 



Length 0.85 in. (21 3-5 mill.), breadth 0.50 in. (12 2-3 mill.). 



Length of aperture 0.40 in. (10 mill.). 



Average weight 7.0 grains. 



The dimensions of a large specimen are as follows: 



Length 1. 00 in. (25 2-5 mill.), breadth 0.53 in. (13 1-2 mill.). 



Length of aperture 0.45 in. (11 2-5 mill.). 



Weight 7 grains. 



Var. B. Regularly conical, rather broad at the base; with 

 spire shortened; whorls nearly 7, convex, not margined; aperture 

 very oblique, semiorbicular, pale blue within. 



Length 0.75 in. (17 mill.), breadth 0.51 in. (13 mill.). 



Length of aperture 0.34 in. (8 2-3 mill.). 



Weight 6.00 grains. 



Var. C. Ovate-conic, marble-gray, bands usually wanting, 

 within the aperture pale lilac, whorls somewhat swollen beneath 

 the sutures, columella not so short. This variety passes into the 

 white variety of A. splendida Newx. 



Var. D. Lightly tinged with pink both within and without. 



Remarks. Dr. Newcomb pronounces this to be a variety of 

 his A. splendida, but I think the differences too well marked for a 

 doubt in regard to its distinct character. — Gk. 



Hab. Wailuku Mountain. — (Ed. Bailey)Gk. 



183. Achatinella gouldii Newcomb. 



A. gouldii Nevvc. P. Zool. Soc. London, 1853, p. 129, pi. xxii, fig. 1. 



Shell conically ovate; whorls 6, flatly convex, margined above, 

 but slightly; sutures slightly marked; aperture ovate; columella 

 lightly callous; lip expanded and subreflected below; color yellow- 

 ish white; with zigzag lines of brown on the third whorl, and 



Occasional Papers B. P. B. M., Vol. III. — 8. 



