DRYM2EUS, SOUTH AMERICAN. 245 



I 



last a little longer than the spire, attenuated basally. Columella 

 somewhat straightened, receding. Aperture oblique, narrow, acum- 

 inate-semioval ; peristome simple, thin, buff, the right margin 

 broadly expanded; columellar margin triangularly dilated from the 

 base, broadly reflexed above. Alt. 37, diarn. 13? mill. ; aperture 

 20 mill long. (P/r.). 



Bolivian Andes (Pfr.) ; Moyobamba region, eastern Peru (Stiibel). 



Bulimus sub inter ruptus PFR., P. Z. S., 1851, p. 256 ; Conchyl. 

 Cab., p. 80, pi. 21, f. 20, 21, and var.,f. 22, 23 ; Monogr.,iii, p. 333. 

 -Otostomus (Drymceus) subinterruptus MARTENS, Conchol. Mit- 

 theil., p. 160. 



Pfeiffer refers to this species, as a variety, a form (pi. 41, figs. 29 

 30) which is smaller, with wider aperture, the columellar margin 

 less receding, more narrowly reflexed. It is probably an imperfectly 

 developed shell. 



D. L^ETUS (Reeve). PI. 43, fig. 72. 



Shell perforate, conic-oblong, rather thin, smoothish, shining ; red- 

 dish, with longitudinal pale lines and three buff-white bands ; spire 

 conic, a little obtuse. Whorls 51, slightly convex, the last a little 

 shorter than the spire, rotund at base ; columella plicate above, ar- 

 cuate, roseate. Aperture slightly oblique, oval ; peristome thin, 

 roseate, the right margin slightly arcuate, columellar margin re- 

 flexed, dilated above. Alt. 25, diam. 11 mill. , aperture (measured 

 inside) 12 mill, long, 6f wide in the middle. (Pfr.). 



Sebundoi, northern Ecuador (Cuming coll.) ; Pasto, southern Co- 

 lombia (Lehmann). 



Bulimus Icetus REEVE, Conch. Icon., pi. 83, f. 616 (Dec. r 1849). 



-PFR., Monogr., iii, p. 343. DUNKER, Jahrb. D. Mai. Ges., 1882, 



ix, p. 380. Drymcetis Icetus DOHRN, Jahrb. D. Mai. Ges., vii, p. 88. 



D. TRIVITTATUS (Mousson). PI. 43, figs. 67, 68. 



Shell subperforate, ovate-fusiform, rather solid, striatulate, irreg- 

 ularly malleated, shining; white, with three wide brown-black 

 bands, the upper one interrupted or ragged. Spire long, conic, reg- 

 ular ; apex small, white; suture little impressed, sublinear. Whorls 

 6-}, a little convex, showing two bands; the last whorl gently as- 

 cending a little in front, lengthened, expanded toward the margin, 

 tapering below, rounded at the region of the perforation. 



