PLEKOCHEILUS-EURYTUS. 81 



lar chestnut, longitudinal streaks. Spire moderately lengthened, 

 apex rather obtuse ; suture impressed. Whorls 5, a little convex, 

 the first two shining, corneous white, the last whorl slightly descend- 

 ing, a little longer than the spire, somewhat inflated. Aperture ob- 

 long-ovate ; peristome somewhat thickened, white, the ends joined 

 by a rather thick blue-gray callus ; columellar margin adnate, basal 

 and outer margins dilated, reflexed throughout. Alt. 32, diam. 23? 

 mill. (Crosse). 



Quito, Ecuador (Paz). 



B. corydon CR., Journ. de Conchyl., xvii, 1869, p. 185 ; xviii, 

 1870, p. 104, pi. 6, f. 6. 



P. PHCEBUS Pfeiffer. Unfigured. 



Shell imperforate, ovate- fusiform, thin, lightly striatulate, little 

 shining ; pale buff, irregularly painted with streaks and spots of 

 brown. Spire conic, rather acute. Whorls 5J, slightly convex, 

 the last not descending, a little longer than the spire, more swollen, 

 very obsoletely angulated in the middle. Columella compressed, 

 lightly arcuate. Aperture little oblique, angulate-elliptical ; peri- 

 stome roseate, margins joined by a brownish callus, the right mar- 

 gin expanded, basal margin subproduced, columellar margin nar- 

 row. Alt. 31, diam. 15 mill.; aperture, alt. 16, width 10 mill. 



Ecuador (Mus. Cuming). 

 B. phtebus PFR., P. Z. S., 1862, p. 274 ; Monogr., vi, p. 9. 



P. TAQUINENSIS Pfeiffer. Unfigured. 



Shell subperforate, ovate-oblong, rather solid, longitudinally 

 minutely striated and malleated ; painted with indistinct oblique 

 reddish streaks under a brownish-olive cuticle. Spire convex-conic, 

 rather obtuse ; whorls 4, moderately convex, the last a little longer 

 than the spire, rounded at base. Columella lightly folded. Aper- 

 ture subvertical, acuminate-oval, pearly inside ; peristome somewhat 

 thickened, flesh-colored ; right margin revolute, columellar margin 

 subdilated, horizontally spread and reflexed. Length 40, diam. 18 

 mill. ; aperture with peristome 20 mill, long, width inside 11 mill. 



Taquina, Sierra Nevada di Sta. Marta, Colombia, 9000 ft. alt. 

 (Mus. Cuming). 



B. taquinemis PFR., P. Z. S., 1854, p.?9fl; Mqnogr., iv, p. 380. 



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TJNIVERSIT 



