DRYM^US, SOUTH AMERICAN. 231 



expanded, the right margin lightly arcuate, coluraellar margin 

 vaulted, reflexed. Alt. 30, diam. 13 mill. ; aperture with peristome 

 15* mill, long, 1(H wide. (P/r.). 



Huallaga, Peru (Reeve). 



Bulimus strigatus REEVE, Conch. Icon., pi. 44, f. 280. Not of 

 Sowerby. Bulimus arcuato-striatus PFR., P. Z. S., 1855, p. 95; 

 Monogr., iv, p. 394. 



Considered by Reeve to be specifically the same as Sowerby's 

 strigatus, but Pfeiflfer describes the Cumingian specimen as a distinct 

 species. 



D. TIGRINUS (daCosta). PL 50, fig. 88. 



Shell pyramidal-oblong, thin, openly umbilicated ; whorls 6, sub- 

 inflated, transversely minutely incised-striate. Columella reflexed ; 

 lip simple, expanded, pellucid. AVhite, painted longitudinally with 

 brown lines and streaks. Aperture ovate. Length 21, diam. 10 

 mill. (daCosta). 



Ecuador (Buckley's coll.). 



Bulimulus (Drymceus) tigrinus DACosTA, Proc. Malac. Soc. Lond., 

 iii, p. 82, pi. 6, f. 6 (July, 1898). 



Seems allied to D. strigatus, but in that species the incised spirals 

 are more minute and irregular in occurrence than the above descrip- 

 tion would lead one to think was the case in tigrinus; and no men- 

 tion is made by DaCosta of the purple interior of the lip, which is 

 more or less conspicuous in strigatus and its varieties. 



D. MELANOSCOLOPS (Dohrn). PI. 42, figs. 53, 54, 55. 



Shell shortly rimate, ovate-pyramidal, very thin, nearly smooth, 

 with very fine growth strise, somewhat pellucid; hyaline-whitish 

 variously painted with brown ; spire long-conic, the apex acute, 

 black ; suture linear. Whorls 6, the embryonic 2 very minutely 

 decussated, the rest smooth, slightly convex, last whorl shorter than 

 the spire, rounded, subcompressed at base, ascending a short distance 

 in front. Aperture slightly oblique, truncate-oval, colored within 

 like the outside ; peristome whitish or pale orange, thin, expanded 

 throughout, the margins approximating, columellar margin dilated. 

 Alt. 20-21, diam. 9 mill. : aperture 91 mill, long, 7 wide. (Dohrri)- 

 Province of Para, Brazil, on the Tapajos river* 



Otostomus melanoscolops DOHRN, Jahrb. D. M. Ges., ix, 1882, p. 

 108, pi. 3, f. 6-8. 



