NEOPETR^EUS. 173 



its close resemblance to B. (Scutalus} corceformis Pils. (pi. 25, fig. 

 61), and from the description of the apical sculpture. 



N. ALTOPERUVIANUS (Reeve). PL 32, figs. 30, 31. 



Shell umbilicate, ovate-conic, rather thin ; striated, somewhat de- 

 cussated by minute concentric impressed lines, a little shining; pale 

 flesh colored, becoming bluish above, painted with chestnut longitu- 

 dinal lines and spiral series of short oblique streaks and spots ; spire 

 convex-conic, rather acute. Whorls 7, a little flattened, the last 

 longer than the spire, somewhat ascending in front, the base obso- 

 letely angular around the compressed umbilicus. 



Aperture little oblique, oval, colored like the outside ; peristome 

 simple, thin, the margins converging, the right margin expanded^ 

 columellar margin much dilated above, a little folded, spreading. 

 Columella with a deep-seated fold. Alt. 47, diam. (above aperture) 

 21 mill.; aperture 21 mill. long. (Pfr.*). 



Peru: Chachapoyas (W. Lobb) ; prov. Patas (Dr. Farris) ; Tarn- 

 billo (Stoltzman) ; Valley of the Utcubamba River, about 1800 meters 

 above the sea, northeastern Peru (Stiibel) ; between Balsas and 

 Caj amar ca (Orton). 



Bulimus alto-peruvianus RVE., P. Z. S., 1849, p. 99 ; Conch. Icon, 

 pi. 72, f. 521. PFR., Monogr., iii, p. 336 ; iv, 400 ; vi, 47 ; viii, p. 

 60. LUBOMIRSKI, P. Z. S., 1879, p. 723. Drymceus altoperuv- 

 ianus W. G. BINN., Ann. Lye. N. H. N. Y., xi, p. 34, pi. 1, f. ii, iv, 

 (genitalia); Ann. N. Y. Acad. Sci., iii, p. 120, pi. 14, f. F (denti- 

 tion). Otostomus (Neopetrceus) altoperuvianus MARTENS, Conchol. 

 Mittheil., i, pp. 161, 194. 



I have seen no typical specimens of this species. From the 

 figures and descriptions it would seem to differ from N. patasensis 

 chiefly in being less ventricose basally, with light colored lip and 

 columella, the outer lip protracted and straightened above. 



Var. gradlior ' Pfr.' Pils. PI 33 ; figs. 37, 38. 



Slenderer, the last whorl less expanded, aperture less dilated 

 obliquely; flesh-colored with rows of oblique spots; obliquely 

 striated and feebly decussated below, the striation stronger on the 

 spire, where two or three whorls following the nepionic ones are flat- 

 tened, with a keel filling the suture. Columella becoming very 

 broad above, hardly folded; no noticeable fold within the last, 

 whorl. Aperture ochre tinted, fading to white on lip and columella. 

 Alt. 43, diam. 21, alt. of aperture 22, greatest width 15.3 mill. 



