94 DRYMJSUS - LEIOSTRACUS. 



5. With three dark bands upon a whitish or yellowish ground 



6. With four dark bands, the uppermost from the suture on cover- 

 ing half of the whorls. 



7. With four or five bands, the lowest around the umbilicus light 

 brown or dark, the rest always dark ; the uppermost and middle ones 

 generally narrow and light brown, the second always lilac or rose, 

 sometimes decidedly wider than the others ; and frequently there is 

 a fine, dark autural line. Measurements of several specimens are: 



Alt. 30, diam. 13 ; aperture, length 12, width 8 mill. 



Alt. 27, diam. 14; aperture, length 11^, width 1\ mill. 



Alt. 26, diam. 13 ; aperture, length 12, width 8J mill. 



Alt. 24, diam. 11J; aperture, length 10, width 7 mill. 



Alt. 22^, diam. 12 ; aperture, length 10, width 6J mill. 



This species is undoubtedly distinct from B. vittatus Spix. It is 

 doubtful, in my opinion, whether B. coxeiranus Moric., placed by 

 Pfeiffer as a synonym of B. vittatus* will not have to be removed 

 thence and united with the present species. (Dohrn.) 



D. OLOUEI (Pfeiffer). 



Shell perforate, ovate-turreted, rather solid, striated and sometimes 

 submalleate; white, irregularly marked with streaks, spots and dots 

 of corneous-brown. Spire long-conic, rather acute. Whorls 7, mod- 

 erately convex, the last scarcely equal to three-sevenths of the total 

 length, subangular, having a corneous band around the impervious 

 perforation. Columella shortly receding. Aperture oblique, sinuate- 

 oval, brownish within ; peristome narrowly expanded, the columellar 

 margin dilated above, reflexed, then descending to an obtuse basal 

 angle. Alt. 22, diam. 10 mill.; aperture 10J mill, long, 6 wide. (Pfr.) 



Brazil (Cloue, in Cuming coll.). 



Bulimus clouei PFR.. P. Z. S., 1856, p. 390 ; Monogr. iv, p. 408. 



Very similar in form to B. obliquus Rve. 



D. ONAGER (Beck). PI. 14, figs. 16, 17. 



Shell perforate, oblong-turreted, thin but rather solid ; white, 

 creamy or yellow, with longitudinal purple-brown stripes which may 

 continue to the base, or be interrupted by a basal light zone bordered 

 by dark bands ; the stripes generally irregular or forked above. Sur- 

 face glossy, smooth except for slight growth-lines. Spire long, apex 

 rather obtuse. Whorls 6^ to 7, convex, the last decidedly so. 



