PLEKOCHEILUS-EURYTU8. 71 



Alt. 40, diam. 23 ; aperture, alt. 23, width 15 mill. 

 Alt. 44, diam. 24 ; aperture, alt. 23, width 17 mill. 

 Alt. 43, diam. 26 ; aperture, alt. 25, width 18 mill. 

 Alt. 50, diam. 33 ; aperture, alt. 33, width 21 mill. 



" The color is sometimes dark brown with lighter streaks near the 

 suture ; sometimes the whole epidermis is made up of fine brown 

 and dull straw-yellow zig-zag streaks ; and others are entirely light 

 brown like B.fulminans. The lip is either leather-colored or flesh- 

 reddish, or whitish with colored edge. The slender form is very 

 near B. subglandiformis" 



P. CONTORTUPLICATUS ReCVC. PI. 19, fig. 39. 



Shell hardly perforate, oblong, solid, minutely inalleated and under 

 a lens very subtly granulated. White, covered with a thin, shining 

 greenish- corneous cuticle. Spire length en ed-couic, the apex rather 

 obtuse ; suture with an impressed margin. Whorls 5, but little 

 convex, the last descending, a little longer than the spire, rounded 

 at base. Columella white, folded, receding. Aperture subvertical, 

 oblong ear-shaped ; peristome white, thickened, expanded and re- 

 flexed. Alt. 67, diam. 27 mill. ; aperture with peristome 36 mill, 

 long, 15 mill, wide in the middle inside. (Pfr.) 



Prov. Minas Geraes, Brazil (Miers). 



B. contortuplicatus RVE., Conch. Icon., pi. 88, f. 658 (Feb., 1850). 

 PFR., Monogr., iii, p. 314. 



This species is compared by Reeve to B. pudicus, and it may 

 prove to be allied to that species rather than to the present group. 



P. GUILDINGI Dohrn. PI. 30, figs. 25, 26. 



Shell narrowly perforate, acuminate-ovate, rather solid, smoothish, 

 shining, tawny or chestnut colored, variously marbled with the 

 whitish-straw-colored deciduous epidermis. Spire elongate-conic, 

 rather acute. Whorls 4i-5, but little convex, the last fuller, de- 

 scending in front ; columella oblique, with a strong fold, white. 

 Aperture acuminate-ovate, scarcely oblique ; peristome expanded 

 throughout, thickened, white. (Dohrn.) 



Alt. 43, diam. 21 ; aperture, alt. 25, width 16 mill. 



Alt. 40, diam. 22 ; aperture, alt. 24, width 16 mill. 



Alt. 42, diam. 19 ; aperture, alt. 23, width 14 mill. 



New Granada (Wallis). 



