DRYM^US, SOUTH AMERICAN. 261 



last compressed and strongly, obtusely keeled at base. Columella 

 arcuate. Aperture slightly oblique, rhombic-oval ; peristome rose- 

 colored, the ends joined by a thin callus, right margin expanded, 

 columellar margin reflexed, adnate above. Alt. about 45, diam. 



17 mill. (H. Ad.). 



Eastern Peru (Bartlett). 



Otostomus pulcherrimus H. AD., P. Z. S., 1866, p. 442, pi. 38, f. 3. 

 Bulimus pulcherrimus PFR., Monogr., viii, p. 110. 



"One example only of this beautiful species has been obtained, 

 and of that, unfortunately, the upper whorls are deficient." 



D. CHIMBORASENSIS (Reeve), PL 40, fig. 1. 



Shell fusiform, somewhat attenuated at the base, scarcely umbili- 

 cated ; whorls 6 in number, convex, longitudinally very closely ele- 

 vately striated. Columella depressly reflected ; lip slightly ex- 

 panded, not reflected. Rose-brown, banded with white, lip and col- 



umella deep purple-rose (Rve). 



Chimborazo (Dennison coll.). 



Bulimus' chimb or asensis RVE., Conch. Icon., pi. 44, f. 275 (Octo- 

 ber, 1848). 



Compare D. decoratus Lea, from which this differs in the more 

 slender form and the color-pattern. 



D. DECORATUS (Lea). PL 40, figs. 2, 3. 



Shell oblong-turrited, with a very narrow umbilical chink ; solid, 

 with three broad oehraeeous bands on a white ground on the last 

 whorl, the upper two continuing upward upon the penultimate and 

 part of the next earlier whorl, the ground-color gradually changing 

 above to deep pink, which is uniform upon the earlier 3 whorls. 

 Somewhat shining, with coarse, low, irregular wrinkles of growth, 

 and no other sculpture. Whorls 5f , very convex, the last distinctly 

 tapering and compressed toward the base. 



Aperture fusiform-oval, showing three broad, bright pink bands 

 inside ; passing below into a short, effuse basal channel or " spout ; ' 

 peristome slightly expanded, the outer lip white-edged outside and 

 within, columellar lip narrowly reflexed, adnate above a narrow 

 umbilical chink, passing in a gradual curve into the moderately 

 strong, long pink parietal callus. Columella deeply concave above, 

 projecting in an angle basally, Alt. 29, diam. 14 ; alt. of aperture 

 15, greatest width (including peristome) 10 mill. 



Near Carthagena, U. S. of Colombia (J. H. Gibbon, M. D,, type 

 locality) ; environs of Quito, Ecuador (Paz). 



