80 PLEKOCHEILUS-EURYTUS. 



vex, the embryonal H smooth, brownish-purple, the last whorl 

 slightly ascending at the insertion, subiiiflated, two-thirds the total 

 length. Aperture suboval, brown and shining inside ; peristome 

 narrowly reflexed, white ; columellar margin complanate, twisted 

 inward above, receding at base. Alt. 24, diam. 16 ; aperture 15 

 mill, long, 9? wide. (Crosse}. 



Mountains of Colombia. 



B. mabillei CR., Journ. de Conchyl., xv, 1867, p. 197, pi. 6, f. 4. 

 PFR., Monogr., vi, p. 46. 



Resembles B. pulicarius Rve., but with different epidermis, small- 

 er, less inflated, the columellar margin more twisted and the um- 

 bilical chink narrower. 



P. SUBGLANDIFOKMIS MoUSSOn. PI. 4, figs. 6, 7. 



Shell subimperforate, elongate-ovate, moderately striated, densely 

 and minutely evenly granulated. Tawny buff, obscurely maculated, 

 at the suture articulated with broivn and yellow. Spire convex-conic, 

 somewhat exserted, the apex rather obtuse, corneous-brown ; suture 

 regular, subimpressed. Whorls 5, flat-convex, the first strongly 

 striated, the following granulated throughout, the maculations giv- 

 ing a crenulated appearance to the suture ; last whorl visibly de- 

 scending, a little longer than spire, long-ovate, slender, somewhat 

 narrowed below. 



Aperture three-fifths the length, subvertical (30 with axis), oval, 

 narrowed above, broadly effuse at base, whitish inside ; peristome 

 expanded and narrowly reflexed, obtuse, not thickened, the right 

 margin regularly curved, columellar margin passing into the oblique 

 and twisted columella, reflexed and adnate above. Alt. 34, diam. 

 19 mill. (Mouss.'). Colombia. 



B. subglandiformis Mouss., Malak. BL, xxi, 1873, p. 6. PFR.,, 

 Novit. Conch., iv, p. 127, pi. 129, f. 1, 2 ; Monogr., viii, p. 605.? B. 

 glandiform REEVE, Conch. Icon. pi. 42, f. 266. PFR., Monogr., 

 iii, p. 325 ; iv, p. 383 ; vi, p. 29. Not B. glandiformis Lea. 



This species is identified by Mousson with B. glandiformis of 

 Reeve, not Lea; whether correctly or not we do not know. It 

 seems, however, to be a well marked species, more elongated than 

 its allies. 



P. CORYDON Crosse. PI. 33, fig. 49. 



Shell imperforate, ovate-acuminate, moderately thick, solid, nearly 

 smooth. Pale whitish-buff, with somewhat interrupted, irregu- 



