DRYM.EUS, SOUTH AMERICAN. 305 



rather broad purple-brown streaks with ill-defined edges. Surface 

 glossy with slight growth-wrinkles but no spiral striae. Spire long, 

 conic, the apex obtuse. Whorls 6i, very convex, the last tapering 

 below. 



Aperture slightly oblique, purple within, oblong, its length con- 

 tained 2 times in that of the shell ; peristome whitish, not ex- 

 panded ; outer lip strongly arcuate above, less so below; columella 

 vertical, nearly straight, with a slight gutter at its base, the col- 

 umellar edge reflexed, face of the reflexed portion with an obliquely 

 longitudinal convexity. Alt. 33, diam. 14* ; alt. of aperture 14 

 mill. 



Near Fresno, Colombia (T. Bland). 



Resembles D. manupictus somewhat in general form, vertical col- 

 umella and coloring, but the whorls are much more convex, the 

 aperture smaller, and the form of the columellar expansion appar- 

 ently different. 



D. VIRGO (Lea). PI. 45, figs. 40, 41. 



Shell oblong-turrited, thin but moderately solid, perforate. 

 White, either uniform or with small inconspicuous brown spots 

 arranged in oblique series at irregular intervals, and sometimes a 

 small purple-brown umbilical patch or band. Surface rather 

 glossy, with slight wrinkles of growth. Spire very long, a little 

 cylindric, with slightly convex lateral outlines. Whorls 7J, but 

 slightly convex, the suture superficial ; apex whitish-corneous or 

 purple-black, If earlier whorls sculptured as usual in Drymceus ; 

 last whorl quite convex below. 



Aperture slightly oblique, small, its length contained nearly three 

 times in that of the shell, white within ; outer lip thin, acute, and not 

 expanded ; columella subvertical, nearly straight or markedly sin- 

 uous, the columellar margin abruptly dilated above, reflexed, adnate 

 except for a small umbilical chink. 



Alt. 26, diam. 9* ; alt. of aperture 9 mill. 



Alt. 23f, diam. 8f ; alt. of aperture 8f mill. 



Near Carthagena (J. H. Gibbon), and Mendez (Bland), Colombia. 



Bulimus virgo LEA, Trans. Amer. Philos. Soc., vi, p. 84, pi. 23, 

 fig. 97 (June, 1838) ; Obs. Genus Unio, etc., ii, p. 8 J, pi. 23, f. 97. 

 Bulimus gruneri PFR., P. Z. S., 1846, p. 30; Monogr., ii, p. 213 ; 

 vi, p. 132 ; Conchyl. Cab., p. 227, pi. 62, f. 11, 12. REEVE, Conch. 

 Jcon., pi. 51, f. 332 (bad). Bulimulus gruneri CROSSE & FISCHER, 

 20 



