36 AMERICAN JOURNAL 



DESCRIPTIONS OF T"WO NEW SPECIES OF GONIOBASIS- 



BY JOHN G. ANTHONY. 



1. G. TRANSLUCENS, Anthony. — t. 1, f. 1, 2. 



Description. — Shell ovale, bulbous, consisting of five convex 

 whorls ; or the upper ones sometimes flattened. Aperture 

 ovate, slightly produced and angular at the base. Columella 

 curved to the right below. Shell thin, translucent, smooth ; 

 color light brown or yellowish, ornamented with two dark 

 brown bands, which are very distinct both within and on the 

 outside ; the upper one is visible on the whorls of the spire. 

 Columella frequently tinged with brown. 



Length -7, breadth -35 of an inch. 

 Hahitat, Canada. 



This beautiful species is distinguished alike by coloration 

 and texture from G. Uvescens, which it greatly resembles in 

 form. G. Milesii, Lea, is a larger, more inflated species. G. 

 pulckella^ Nob., is far more solid, and a narrower species. 



2 G. INTEELINEATA, Authonj^ — t. 1. f. 3. 



Description. — Shell thin, elongate, slender; of a greyish horn 

 color, alternating with narrow, brown, hair-like lines, longitu- 

 dinally and closely arranged ; whorls 7-8 subconvex, smooth ; 

 sutures distinct; aperture small, elliptical, ashen gray within ; 

 columella regularly rounded, much curved at base, and with 

 a faint indentation or notch where the outer lip meets it. 



Length of shell "62 inch. Length of aperture -25 inch ; 

 breadth of shell '25 inch ; breadth of aperture •15 inch. 

 Hahitat, Christy Creek, Indiana. 



A most beautifully delicate, slender species whose most 

 prominent characteristic is indicated by its specific name. 

 Upon a light grayish horn-colored surface we find narrow, 

 brown, longitudinal, curved lines distinctly drawn. These are 

 very conspicuous under the microscope, and appear to be 

 slightly raised. It bears a general resemblance to G. elata, 

 Nob,, and G. hicolorata,'N oh., but its peculiarly varied exterior 

 will at once distinguish it from either. I know of no other 

 American species so marked." 



