DRYMJEUS, SOUTH AMERICAN. 285 



D. ALSOPHILUS (Philippi). PI. 49, figs. 71, 72. 



Shell perforate-umbilicate, obloDg-turrited, thin, smooth ; ashy- 

 whitish, with subtessellated reddish-chestnut bands, two on the up- 

 per, 5 on the last whorl. Whorls 8, a little convex, the last nearly 

 two-fifths the length of shell ; apex acute. Aperture ovate-oblong, 

 the peristome unexpanded, thin, right margin subsinuous above, 

 columellar margin expanded above ; columella somewhat arcuate. 

 Alt. 30*, diam. 14 ; aperture 13 mill, long, 7 wide. (Phil.). 



Between Lamas and Tarapoto, Peru (Raimondi). 



Bu limits alsophilus PHIL., Mai. BL, xiv, 1867, p. 69. PFR., 

 Novit. Conch., p. 334, pi. 80, f. 3, 4 ; Monogr., vi, p. 130. 



This species closely resembles B. sachsei Alb., but is easily dis- 

 tinguished by the form of the aperture, the coloration, and the 

 much shorter and broadly reflexed columella of sachsei. (Pfr.). 



D. SERENUS (Philippi). PI. 49, figs. 73, 74. 



Shell imperforate, oblong-turrited, slightly striatulate, thin, very 

 glossy ; white, with three reddish-chestnut zones on the last, two on 

 the earlier whorls ; apex obtuse. Whorls 7, flat, the last narrowed 

 at base, forming two-fifths of the shell's length. Aperture oblong ; 

 columella perpendicular; peristome unexpanded, the right margin 

 very oblique, columellar margin triangular, dilated above, adnate ; 

 no inner lip. Alt. 28, diam. nearly 12; aperture 12} mill, long, 

 5J wide. (Phil.). 



Hacienda de Sunehobamba, Peru, (Raimondi). 



Bulimus serenus PHIL., Mai. BL, xiv, 1867, p. 72. PFR., Novit. 

 Conch., p. 339. pi. 80, f. 19, 20 ; Mouogr., vi, p. 106. 



An isolated species among the other Peruvian Bulimi. The em- 

 bryonal whorls are flesh colored above, purple-black below. 



D. POECILUS (Orbigny). PL 49, tigs. 49-57. 



Shell ovate-pyramidal, thin, but moderately strong, rather openly 

 perforate. Opaque-white (rarely yellowish), variously banded 

 with black-brown : (a) with 7 continuous narrow bands, that below 

 the suture widest, fig. 51 ; (6) the bands above the periphery broken 

 into square or oblong chestnut and black spots, the three basal 

 bands continuous, or the middle one or all of them interrupted, figs. 

 49, 50 ; (f) bands above periphery transformed into obliquely longi- 

 tudinal stripes and blotches, some chestnut, some blackish ; and 



