230 DRYM^EUS, SOUTH AMERICAN. 



shells have a black band formed of lance-head shaped or square 

 spots, showing on the last whorl only, or sometimes on the last and 

 next whorls ; the band being as distinct inside as on the exterior. 



Var. CECILE^E (Moricaud). PL 42, fig. 52. 



Shell umbilicated, ovate-pyramidal, thin, translucid, shining ; 

 pale buff, with elegant longitudinal narrow tawny streaks. Whorls 

 6, a little convex, the last about as long as the spire, suture im- 

 pressed ; spire conic, acute. Aperture little oblique, oblong, with a 

 very pale lilac border within ; columella slightly arcuate ; peristome 

 thin, expanded, buff or white, not continuous. Alt. 22-17, diam. 

 10-7 mill. (Jforic.). 



Tarapoto, Peru (Moric.) ; Juan Ouerra, on the Huallaga river, 

 n.-e. Peru (Stu'bel). 



Bulimus cecileoR MORIC., Rev. et Mag. de Zool., 1858, p. 452, pi. 

 14, f. 4. PFR., Monogr., vi, p. 37. Otostomus (Drymceus) cecilece 

 MARTENS, Conchol. Mitth., p. 160. 



Var. MARIEANUS Pilsbry, n. n. PL 42, fig. 51. 



Shell broadly umbilicated, ovate-pyramidal, thin, lightly striated, 

 shining; tawny-black, the last whorl begirt with a white band. 

 Whorls 6, nearly flat, encircling by a black band or longitudinally 

 irregularly streaked with blackish. Columella lightly arcuate. 

 Aperture slightly oblique, oval-oblong, blackish inside; peristome 

 thin, expanded, dilated, white or buff. Alt. 24, diam. 9-10 mill. 

 (Jfon'c.). 



Tarapoto, Peru (Moric.). 



Bulimus marice MORICAND, Rev. et Mag. de Zool., 1858, p. 453, 

 pi. 14, f. 5. PFR., Monogr., vi, p. 38. Not B. maria Albers, 1850. 



Probably another variety of D. strigatus, but it seems to have a 

 color pattern not represented in the series of that species before me. 



D. ARCUATOSTRIATUS (Pfeiffer). PL 41, fig. 31. 



Shell deeply rimate, ovate-pyramidal, thin, closely arcuate-striate, 

 shining, irregularly painted with wide gray-brown bands streakedly 

 interrupted, and angular streaks. Spire a little convexly conic, the 

 apex black, slightly obtuse. Whorls 6, moderately convex, the last 

 about as long as the spire, somewhat ascending in front, base 

 slightly attenuated. Columella slightly plicate, subvertical. Aper- 

 ture a little oblique, obliquely truncate-oval ; peristome thin, broadly 



