DRYM^US, SOUTH AMERICAN. 299 



D. DEPICTUS (Keeve). PI. 45, figs. 17-22. 



Shell perforate, oblong, with long tapering spire, solid and strong. 

 Whitish or pale yelloiv, with numerous longitudinal reddish or pur- 

 plish-brown streaks, interrupted by three (or four} sharply defined 

 white girdles, the upper one narrowest, nearer to the suture than to 

 the subperipheral girdle, sometimes with another girdle interposed 

 between these two; the basal girdle entering the aperture, daik 

 band below it nearly continuous, defining a small white area around 

 the perforation. Surface nearly lusterless, with slight irregular 

 growth wrinkles. Whorls 62, but slightly convex. 



Aperture somewhat less than half the total altitude, irregularly 

 ovate, showing the external coloring within ; peristome unexpanded ; 

 col urn el la straight, vertical, abruptly reflexed at the insertion. 



Alt. 3(H, diam. 13; alt. of aperture 14 mill. 



Alt. 28, diam. 13 ; alt. of aperture 13 mill. 



New Granada (Reeve) ; Caracas (Ernst) ; and Jali, prov. Menda, 

 Venezuela (Engel). 



Bulimus depietus REEVE, Conch. Icon., pi. 74, f. 529 (Aug., 

 1849). PFR., Mouogr., iii, p. 337; iv, 397; vi, 44; viii, 56. 

 Otostomus depietus MARTENS, Binnenmoll. Veuez., p. 183, pi. 1, f. 

 15-19 ; var. ictericus, pi. 1, f. 16, 17. 1 Bulimus pervariabilis PFR., 

 P. Z. S., 1852, p. 5^ ; Monogr., iii, p. 337. 



The above description applies to the typical form of this species. 

 The specimens collected by Ernst have the aperture larger, at least 

 half the shell's length, often more, and the pattern is various, 

 sometimes broken by more light girdles, so that in some the coloring 

 would be described as rows of spots, only the lowest interruption 

 appearing as a sharply defined yellow band. In specimens from 

 Caracas the streaks are sometimes so wide that they begin to coal- 

 esce; and in some specimens they are not interrupted. 



Var. ICTERICUS Martens. PI. 45, figs. 23, 24. 



Sixty specimens were sent by Mr. Ernst from Caracas, which 

 Von Martens states, leave him in doubt whether or not they are a 

 variation of the preceding. The form is substantially identical, 

 length of aperture varying between three-sevenths and one-half the 

 total length ; sculpture as in depietus. White, with more or less 

 yellow suffusion below, the apex sulphur-yellow; interior of the 

 aperture including parietal wall, almost always decided sulphur- 

 yellow. 



