32 BULIMULUS-SCUTALUS. 



Cotopaxi, Ecuador ; variety at Mi. Cayembe (Bourcier) ; Anti- 

 sana and Pichincha (Martinez) ; La Mocha (Paz), among stones ; 

 Tumbaco, Cayembe (Boetzkes) : descent of Achupallas on the river 

 Sii'la (Cousin). 



Bulimus cotopaxiensis PFR., P. Z. S., 1852, p. 155. Conchy 1. 

 Cab., p. 103, pi. 33, f. 9, 10 ; Monogr., iii, 419. HIDALGO, Viaje al 

 Pacifico, p. 105. MARTENS, Conch. Mittheil., ii, p. 161. COUSIN, 

 Bull. Soc. Zool. France, 1887, p. 225. Scutalus cotopaxiensis MIL- 

 LER, Mai. BL, xxv, p. 193. 



Variety (fig. 50). Spire elongated, closely marbled with brown, 

 the spiral lines continuing to the base of last whorl. Alt. 35, diam t 



15 mill. ; aperture 16 mill, long, 8 wide (Pfr.). 



Hidalgo observes that the lip-edge always has the same color as 

 the epidermis. He questions its distinctness from B. subfasciatus 

 Pfr., which differs only in being a little rougher, with narrow, ver- 

 tical columella, and of slightly darker color. 



B. SUBFASCIATUS (Pfeiffer). PI. 8, fig. 33. 



Shell subperforate, oblong-ovate, rather solid, longitudinally ru- 

 gose-striate and irregularly decussate-granulate, tawny, encircled by 

 two or three obsolete brown bands. Spire convex- conic, the apex 

 obtuse. Whorls 6, rather convex, the last as long as the spire, ro- 

 tund at base. Columella vertical ; aperture subvertical, oblong, 

 white within, shining ; peristome unexpanded, somewhat thickened, 

 right margin spreading above, columellar margin dilated above, 

 white, reflexed, almost adnate. Alt. 32, diam. 14 mill. ; aperture 



16 mill, long, 9 wide. (P/r.). 



Mt. Antisana, Ecuador (Bourcier). 



Bulimus subfasciatus PFR., Monogr., iii, p. 408 (1853) ; P. Z. S., 

 1852, p. 60 ; Conchyl. Cab., p. 105, pi. 33, f. 19. Conf. HIDALGO, 

 Viaje al Pacif., p. 106. 



Hidalgo comments on the evident proximity of this species to B. 

 cotopaxiensis Pfr., surmising the identity of the two. 



B. ANTHISANENSIS (Pfeiffer). PI. 4, figs. 41, 42. 



Shell imperforate, ovate-conic, rather solid, rugose-striate and 

 granulate ; silky ; chestnut, marbled with tawny and buff. Spire 

 conic, the apex rather acute. Whorl 6, nearly flat, the last equal 

 to the spire in length, somewhat tapering toward the base. Colu- 

 mella callous, rather straightly receding. Aperture subvertical, 

 semioval, livid inside ; peristome simple, unexpanded, the right 



