150 BULIMULUS-BOSTRYX-PERONJEUS. 



Bulimm hamiltoni REEVE, Conch. Icon., pi. 83, f. 610 (Dec., 

 1849). PFR., Monogr., iii, p. 429; iv, p. 493; vi, p. 140. HUPE, 

 in Castelnau's Exped., Moll., p. 49, pi. 9, f. 5. MORELET, Ser. 

 Conch., iii, p. 201. 



M. Angrand collected this species in Peru, between Aguas 

 Calientes and Andahuaylas, on the slopes of the temperature vallies 

 of the Cordillera, and in the cold regions of Argama and Huau- 

 carama. It is found in dry places, on herbaceous plants. 



B. ELATUS Philippi. PI. 46, figs. 52, 53. 



Shell perforate, conic-turrited, irregularly striatulate, often pli- 

 catulate towards the apex, a little shining. White, unicolored or 

 ornamented with pale brown streaks. Spire turrited, the apex 

 rather acute, pale corneous. Whorls 9 to 10, a little convex, the 

 last not attaining one-third the altitude, rarely begirt with a brown 

 line below the middle; base rounded. 



Aperture little oblique, oblong; peristome simple, unexpanded, 

 acute; columellar margin membranous, reflexed above, nearly 

 covering the perforation. Dimensions of largest specimen: alt. 21, 

 diam. 6 mill. ; aperture, alt. 6, width 3 mill. (Pfr.). 



Between Mayoc and Huanta y Peru (Raimondi). 



B. elatus PHIL., Malak. Bl., xvi, 1869, p. 33. PFR., t. c., p. 89 ; 

 Novit. Conch., iii, p. 469, pi. 102, f. 5, 6 ; Mongr., viii, p. 173. 



Similar in form to B. hamiltoni Reeve, but the perforation is nar- 

 row ; whorls striatulate, not plicate; and the aperture narrower, 

 and oblong. 



B. CERATACME Pfeiffer. Un figured. 



Shell deeply and narrowly rimate, subfusiform-oblong, rather 

 solid, irregularly striatulate, little shining; fleshy- whitish. Spire 

 elongate, the apex corneous, rather obtuse. Whorls 7$, little con- 

 vex, the median ones remotely and obsoletely streaked with corneous, 

 last whorl slightly exceeding a third of the total alt., somewhat 

 attenuated at base. Columella receding, lightly folded. Aperture 

 slightly oblique, oblong-oval ; peristome acute, somewhat lipped 

 within, the margins approximating, joined by a thin callus, right 

 margin expanded, arcuate above, columellar margin widened. Alt* 

 18|, diam. 6 mill. ; aperture 7 mill, long, 4 wide. (Pfr.). 



Peru f 



B. ceratacme PFR., P. Z. S., 1855, p. 8 ; Monogr., iv, p. 424. 



