DRYM^US, SOUTH AMERICAN. 270 



Provinces of La Laguna and Valle Grande, Bolivia, especially at 

 the place called Pampa Ruiz ; along the dry and precipitous coteaux 

 of the Rio Grande; common under stones, cacti and mimosas. 

 (Orb.); Santa Rosa, province of Salta, Argentina (Borelli) ; Chilon, 

 Bolivia (Bridges, B. draparnaudi) ; Eastern Peru (Bartlett). 



Helix torallyi ORB., Mag. de Zool., 1835, p. 11 ; Voy. Amer. 

 Merid., pi. 32, f. 1-4. Bulimus torallyi ORB., t. c. t p. 285. PFR., 

 Monogr., ii, p. 201 ; iii, 412 ; iv, 471 ; vi, 114 ; viii, 152 (excluding 

 B. sisalensis). PARAVICINI, Boll. Mus. Zool. ed. Anat. Comp. Univ. 

 Torino, ix, no. 181, p. 5. Bulimy his torallyi BECK, Index, p. 67. 

 ANCEY, Boll. Mus. Zool. ed Anat. Comp. Univ. Torino, xii, no. 309, 

 p. 5 (1897, as " B. toralyis "). Mesembrinus ventricosus PARAVICINI, 

 I. c., p. 6. B. pazianus PARAVICINI, /. c., p. 6 (not of Orb.). Bul- 

 imus draparnaudi PFR., P. Z. 8., 1846, p. 113 ; Monogr., ii, p. 174. 

 REEVE, Conch. Icon., pi. 19, f. 116a, b. Otoslomus torallyi H. 

 AD., P. Z. S., 1866, p. 435. 



D. BORELLII (Ancey). PI. 26, figs. 77, 78. 



Shell elongated, pyramidal, rather solid, opaque, perforate; some- 

 what shining; pale buff- whitish, irregularly painted with many con- 

 tinuous brown streaks, more or less narrow and nearly straight, with 

 paler ones interposed between them. Spire produced, turrited, 

 tapering-conoid, the apex minute, rather acute. Whorls 9 to 9, 

 somewhat convex, separated by a linear suture, of little depth, the 

 first whorls pale corneous, one-colored, rather flattened, the following 

 obsoletely striatulate ; last whorl oblong, tapering at base. 



Aperture oblong, angulate above, hardly expanding, little oblique, 

 the lines showing through ; peristome simple, acute, rather broadly 

 revolute for some distance at the perforation, covering the umbilicus 

 above. No parietal callus. (Ancey~). 



Alt. 34, diam. 11, alt. of aperture 11 mill. 



Alt. 31, diam. 11, alt. of aperture 10 mill. 



Alt. 31, diam. 9, alt. of aperture 9 mill. 



Alt. 32, diam. 10*, alt. of aperture 1H mill. 



Mission of San Francisco, on the upper Pilcomayo River (type 

 locality), and Caiza, in the Gran Chaco, Bolivia; San Lorenzo, 

 prov. Jujuy, Argentine Republic (Dr. Borelli). 



Bulimulus borellli ANCEY, Boll. Mus. Zool. ed Auat. Comp. Univ. 

 Torino, xii, no. 309, p. 13, figs. 8, 9 of plate (Nov. 30, 1897). 



