BUL1MULUS. 139 



convex, the last about as long as the spire, inflated. Columella 

 somewhat straightened ; aperture a little oblique, sinuate-oval ; per- 

 istome simple, unexpanded, the columellar margin noticeably dilated 

 to the base, vaulted, reflexed. Length 21, diam. 12^ mill.; aperture 

 12 mill, long, 6^ wide (PJr.). Habitat unknown (Cuming coll.). 



BuUmus delumbis RVE., Conch. Icon. pi. 76, f. 555 (August, 

 1849) PFR., Monogr. iii, p. 418; iv, 477; vi, 124. 



" Very delicately tinged with orange and purple-violet in the aper- 

 ture " (Rve.~) 



B. TURRITELLATU9 (Beck). Vol. X, p. 193. 



Reported from Matto Grosso Province, Brazil, by Ancey, collected 

 by Germain and H. H. Smith. It is said by Mr. Ancey to be quite 

 variable. The shell, usually grayish-white with darker streaks in 

 the direction of growth lines, and irregularly placed, is sometimes 

 ochre-brown with the streaks more or less distinct. 



Var. pliculosa Ancey. Shell ovate-attenuate, openly and rather 

 widely perforate, somewhat thin, whitish-buff, ornamented with 

 narrow streaks in the direction of growth-lines, somewhat glossy, 

 closely and somewhat irregularly pliculose. Spire ovate-tapering, 

 rather acute. Whorls 7, a little convex, the last ovate ; suture 

 moderate. Peristome expanded throughout, more dilated at the 

 columella. Length 27, diam. 14^, length of aperture 13^ mill. 



S. W. Brazil: Matto-Grosso (Germain). 



Bulimulus turritella Orb., var. pliculosa Ancey Le Naturaliste, 

 Apr. 15, 1901, p. 92. 



B. PERVIUS Pfeiffer. 



Shell umbilicate, obliquely ovate-conic, rather solid, wrinkle- 

 striate, opaque, white. Spire conic, rather acute ; suture profound. 

 Whorls 6^, convex, the last slightly exceeding the spire, somewhat 

 obliquely produced basully, subcompressed around the narrow but 

 pervious umbilicus. Columella lightly arcuate. Aperture oblique, 

 oval, rounded at base ; peristome simple, the margins approximating, 

 right margin a little expanded, columellar margin much dilated, 

 slightly reflexed. Alt. 24, diam. 12 mill.; aperture, with peristome, 

 14 mill, long, 9 wide (Pfr.}. Habitat unknown. 



BuUmus pewius PFR., P. Z. S. 1853, p. 50 ; Monogr. iii, p. 651. 



