DRYM^EUS LEIOSTRACUS. 93 



Paz ; but the specimens were probably purchased or given to him 

 there, not collected, as other naturalists report it solely from more 

 northern provinces. 



D. OBLIQUUS (Reeve). PL 14, figs. 6-15. 



Shell umbilicated, subpyramidal-ovate, the base obliquely pro- 

 duced ; rather solid, smooth ; pale rose-colored, the last whorl encir- 

 cled by a single chestnut band. Spire long-conic, rather obtuse. 

 Whorls 7-8, rather flattened, the last shorter than the spire, rotund. 

 Columella subplicate. Aperture a little oblique, suboval : peristome 

 expanded, the columellar margin dilated, vaulted, reflexed. 



Alt. 23, diam. 10 mill.; aperture 9 mill. long. (Pfr.) 



Province of Bahia (Cuming, Will), and Minas Geraes (Holler- 

 bach), Brazil. 



Bulimus obliquus REEVE, Conch. Icon., pi. 76, f. 551 (August, 

 1849). PFR., Monogr. iii, p. 342. Bulimulus oUiquus DOHRN, 

 Jalirb. D. Mai. Ges. x, 1883, p. 352, pi. 11, f. 8-15. MARTENS, 

 Sitzungsber. Ges. Naturforsch. Freunde, Berlin, 1885, p. 191. 

 Bulimus Jeffrey si PFR., Zeitschr. f. Mai., 1852, p. 93 : Monogr. iii, 

 p. 342 ; Conchyl. Cab., p. 187, pi. 49, f. 9, 10. 



Fig. 14 is typical obliquus* and fig. 15 the original jeffreysi. Dohrn 

 writes that different as are Pfeiffer's diagnoses of obliquus and Jef- 

 frey <si , he is unable to separate the two upon comparing over a hun- 

 dred specimens. In the various color-varieties the form is sometimes 

 more slender, sometimes more obese, and the aperture varies con- 

 comitantly in length, and in being more or less oblique. In those 

 with long, subvertical mouth the columellar margin of the lip is nat- 

 urally formed somewhat differently than in shorter shells. Common 

 to all the examples is the quite finely latticed and reddish embryonic 

 extremity of the smooth shell. The following color-varieties occur : 



1. White, bandless. 



2. White or even milk-white or yellowish-white or bluish white or 

 reddish, with a band below the periphery (B. obliqaus*}. 



3. Straw-yellow, with rose-colored bands so broad that the ground 

 color almost disappears, and either with a brown band below the 

 periphery, or with also a quite narrow brown sutural stripe, frequently 

 demarked by a white line bounding it below. 



4. Like no. 2, but having a brown band around the umbilicus and 

 two narrow, brown, band-like series of flecks above the periphery. 



