166 NEOPETR^EUS. 



purple within, fading to buff far within the throat. Peristome 

 white-edged, outer and basal lips obtuse, hardly expanded, col- 

 umellar lip expanded, with straight, vertical edge; columella very 

 conspicuously obliquely truncated below. Alt. 45, diam. 25, alt. of 



aperture 22 width 16'5 mill. 



Peru. 



Drymceus (Neopetrceus) filiola PILS., Proc. Acad. N. S. Phila., p. 

 22, Feb. 23, 1897. 



The truncated columella gives the effect of a large, obtuse tooth, 

 but the truncation is shown a little too abrupt in fig. 6. The repres- 

 entation of apical sculpture in fig. 8 is too coarse. The species is 

 most nearly related to N. vadum, but differs strikingly from that in 

 proportions, characters of the lip and columella, etc. 



N. CORA (d'Orbigny). PI. 30, figs. 1, 2. 



Shell oblong-ventricose, swollen, rather thick, smooth, shining, 

 marked with transverse striae visible only under the lens, or some- 

 times malleated ; whitish-rose colored or yellowish, generally uni- 

 colored but sometimes with four brown spiral bands frequently inter- 

 rupted and forming square spots. Spire conic, short, the apex sub- 

 acute, truncate. Whorls 6, inflated, separated by an even suture. 



Aperture large, oval, lateral ; lip thin, subreflexed, brown ; inte- 

 rior brown ; umbilicus large. Alt. 43, diam. 30 mill. (Orb.'). 



Shell deeply arcuate-rimate, ovate-conic, rather solid, smoothish, 

 shining ; flesh-colored, irregularly tawny streaked, and sometimes 

 ornamented with four brown bands. Spire conic, rather acute ; 

 whorls 7, a little convex, the last slightly shorter than the spire, 

 ascending in front, somewhat sack-shaped at base. Aperture sub- 

 vertical, truncate-oval, blackish in front ; peristome thin, whitish ; 

 the right margin slightly expanded, columellar margin broadly 

 spreading. Alt. 44, diam. above aperture 23 mill.; alt. of aperture 

 including peristome 23, breadth 17 mill. (Pfr.). 



Interior of Peru (Fontaine) ; Huanuco (Paz). 



Helix cora D'ORB., Synops., Mag. de ZooL, 1835, p. 15; Voy. 

 Amer. Merid., pi. 34, f. 14, 15. Bulimus cora D'ORB., t. c., p. 307. 



-HIDALGO, Journ. de Conchyl., 1870, p. 48. PFR., Monogr., ii, 

 p. 57 ; iv, 401 ; Novit. Conch., iii, p. 418 (description, not figures). 



-Buliminus cora BECK, Index, p. 69. Not B. cora Shuttleworth, or 

 of Pfr., Monogr., iii. See also, DOHRN, Jahrb. D. M. Ges., 1882, p. 

 107. 



