20 STROPHOCHEILUS-BORUS. 



sists, in the specimen in Dohrn's collection, of numerous spiral series 

 of very small granules ; these granules are a little larger and follow 

 one another closer than in durfeldti. 



Length 69, diam. 36 ; length of aperture 38, width 25 outside, 19 

 mill, inside. 



Whether B. durfeldti is specifically separable from this species 

 must be decided by the examination of more material. Not having 

 seen this species, the above observations are taken from von Mar- 

 tens' monograph. 



S. COCAPATENSIS Pfeiffer. Unfigured. 



Shell imperforate, ovate-oblong, solid, very minutely decussated ; 

 violaceous-fleshy under a greenish-tawny cuticle ; spire convex-conic, 

 the apex obtuse; suture white, irregular ; whorls 5J, the upper ones 

 radially ribbed and most minutely granulated, the following very 

 obliquely descending, a little convex ; the last whorl about equal 

 in length to the spire, base rounded. Columella receding, slightly 

 arcuate; aperture subvertical, acuminate-oval, pearly within ; per- 

 istome thickened, narrowly expanded, the margins joined by a shin- 

 ing callus, columellar margin dilated, adnate. 



Alt. 67, diam. 30 mill. ; aperture, long 55*, width 15 [?] (Pfr.*). 

 Cocapata, Bolivia (Bridges, in Mus. Cuming). 



Bulimus cocapatensis PFR., P. Z. S. 1855, p. 115 ; Monogr. iv, p. 

 467; vi, p. 11. 



At first glance it looks like B. rosaceus, but has different sculpture, 

 obliquely descending suture, etc. (Pfr."). 



S. GRANULOSUS Rang. PI. 6, fig. 33. 



Shell ovate-oblong, solid ; ground-color brown above, white be- 

 low, under a thin }ellow cuticle with darker longitudinal streaks. 

 Nepionic shell of 3 whorls, the first planorboid, smooth, the next 

 with equal, narrow, spaced riblets, which on latter half of last 

 nepionic whorl do not extend to suture below ; post-embryonic whorls 

 2, with slight growth-lines. Last 2 whorls densely, minutely gran- 

 ulated throughout, the granules oblong in spiral series, equally 

 developed over the whole body-whorl. Spire regularly tapering ; 

 last whorl regularly elliptical, somewhat flattened above. 



Aperture half the shell's length, narrowly ovate-pear-shaped, 

 acute above, white within ; outer lip hardly expanded, much thick- 

 ened, rose-pink, straight above, regularly curved below : columella 



