BULIMULUS. 



191 



Bulimulus inscendens, W. G. Bins.— Shell rimate, acumi- 

 nately oblong, thin, reddish-brown, decussated with striae of growth and 

 minute revolving lines, the apical whirl and a half being 

 ribbed ; suture moderate ; whirls seven, convex, the last ^'S* 343. 

 seven-twelfths the shell's length ; aperture oblique, oblong- 

 ovate; peristome simple, acute, reflected at the columella; 

 a thin callus on the parietal wall of the aperture. Length 

 26, breadth 10; aperture 15 long, 9 mill, broad. 



BuUmus inscendens, W. G. Binney, Proc. Acad. Nat. Sci. 



Philad. 1861, 332 (fig.). 

 Mesembrinus inscendens, Tkyon, Am. Journ. Conch. Ill, 170, 



pi. xiv, f. 21 (18G7). 



On dry mountains, 800 to 1000 feet high, between 

 Cape San Lucas and Marj^arita Bay, Lower Cali- BuUmuius 



inscendens. 



foniia, and some three hundred and fifty miles above 

 (Xantus), climbing high Copal trees; never found on the low 

 lands or table-lands. 



The description is drawn from the most perfect specimen, 

 which is somewhat smaller and more cylindrical than some of 

 the others. On first receiving a single specimen, I was in- 

 clined to refer it to B. excelsus, Gld. A careful examination 

 of the description of that species, however, and of a specimen 

 latel}^ received, convinces me of its being distinct. Its peculiar 

 characteristic is the strongly ribbed, polished apical whirls, 

 differing from the decussated sculpturing of the remainder of 

 the shell. 



344. 



Bulimulus inul4ilineatus, S.\y. — Shell subperforate, thin and 

 strong, elongated, civate-acuminate, smooth and shining, of a 

 bright yellowish-white color, variegated with longitudinal 

 stripes and spiral zones of dark chestnut, of various widths, 

 none of which are constant except a subsutural line, con- 

 tinued to the apex, which is also black ; whirls about seven, 

 a little convex ; suture delicate ; aperture rounded-ovate, a 

 little more than one-third the length of the shell ; peristome 

 acute ; columella straight, widening upwards, and protecting 



a minute umbilical opening. Length 25, diam. 10 mill. 



Btdimiiliis 



Bulimus multilineatus, Say, Journ. Acad. Nat. Sci. Philad. muhilineatug. 



