DRYM^EUS. 157 



bent in zigzag, and dotted with white. Spire long conic. Whorls 

 G, moderately convex, the last obliquely produced. Columella 

 straight, roseate. Aperture oblong-oval, lilac colored within ; per- 

 istome roseate, dilated, the right margin expanded. Length 34, 

 diam. 15 ; aperture length 18, width 9 mill. (Da Costa.') 



Peru : Chachapoyas, prov. Amazonas. 



D. elsteri Da C., Proc. Malac. Soc. Lond. iv, p. 238, pi. 24, f. 6 

 (Oct. 1901). 



" An unnamed example of this species is in the Cuming collection 

 in the British Museum. The writer received a few specimens from 

 the Governor of the Province of Amazonas, through the instru- 

 mentality of his friend Mr. Elster of Lima (since deceased), after 

 whom the species is named. The shells from which the type is se- 

 lected vary considerably in both form and coloration, and will be 

 found to resemble many of the species of Drymgeus from Colombia, 

 which latter are generally, however, deeply umbilicated." (Da 

 Costa.) 



D. OBLIQUISTRIATUS Da Costa. PI. 48, fig. 45. 



Shell pyramidal-oblong, umbilicate ; sutures impressed ; olivace- 

 ous-brown, sparsely marked here and there with brown streaks ; 

 delicately and very closely obliquely striate. Spire acuminate. 

 Whorls 8, convex. Aperture oblong, intensely black-brown inside, 

 about three-sevenths the length of the shell ; lip simple, columella 

 nearly straight, reflexed. Length 30, diam. 12; aperture length 12, 

 width 6 mill. (Da Costa). Peru : San Pablo. 



D. obliquistriatus Da C., Proc. Malac. Soc. Lond. iv, p. 238, pi. 

 24, f. 2 (Oct., 1901). 



D. CYLINDRICUS Da Costa. PI. 48, fig. 46. 



Shell subcylindrically turreted, narrowly perforate, rather solid, 

 obliquely subrugosely striate ; dull rose-corneous, covered with a thin 

 brown cuticle ; apex subpapillar ; suture impressed. Whorls 7-^, 

 very little convex. Aperture oblique, about two fifths the length of 

 the shell, a little tapering at base ; peristome simple, the columella a 

 little reflexed. Length 30, diam. 11; aperture, length 12, width 5 

 mill. (Da Costa). Peru : San Pablo. 



D. cytindrfcus Da C., t. c., p. 238, pi. 24, f. 3 (Oct., 1901). 



