BULIMULUS-SCUTALUS. 19 



Probably a rather slender specimen of B. revinctus, as Morelet 

 Las surmised. Pfeiffer's diagnosis gives no satisfactory differential 

 characters, though he says it differs from both B. badius Sow. and 

 the small variety of B. thamnoicus in the umbilicus, sculpture and 

 obtuse apex. 



B. TUPACII (d'Orbigny). PL 3, figs. 27, 28, 29, 30, 31. 



Shell narrowly umbilicate, oblong- conic, rather solid ; yellow or 

 yellowish-white with five bands and an umbilical patch of purple- 

 brown, the three median bands wide ; (or uniform dark brown). 

 Surface irregularly wrinkle-striated and rather obsoletely decussated ; 

 the embryonic whorls densely punctate or punctate-wrinkled. Spire 

 long. Whorls 7, moderately convex, separated by impressed, crenu- 

 lated sutures, bordered below by a white line. 



Aperture rather small, less than half the shell's length, banded or 

 white inside ; peristome slightly thickened within ; columella with a 

 slightly convex, deeply entering fold, the columellar margin broadly 

 expanded. 



Alt. 41, diam 20 mill, (specimen). 



Alt. 75, diam. 35 mill. (Orbigny). 



Bolivian Andes at Yanacache and CVwpe(nearChulumani) Prov. 

 La Paz, and on the northeastern slope of the Cordillera in the south- 

 eastern part of the same province, on dry garden walls, etc., activating 

 in the ground (Orbigny). Tucuman, Prov. Tucuman, Argentine 

 Republic (Borelli). 



Helix tupacii D'ORB., Mag. de Zool., 1835, p. 16. Bulimus tupacii 

 D'ORB., Voy, dans 1'Amer. Merid., p. 292, pi. 38, f. 1-5. REEVE, 

 Conch. Icon., pi. xv, f. 86b (not 86a, 86c). DOERING, Bol. Ac. 

 Cordova, ii. pp. 338, 339 (varieties; anatomy). PAKAVICINI, Boll. 

 Mus. Zool. ed Anat. Comp. Univ. Torino, ix, No. 181, p. 7, 1894. 

 ? Bulimis tupacii SOWB., Conch. Illustr., f. 77. 



The specimens before me correspond to fig. 31 of pi. 3. Those of 

 d'Orbigny were larger. Dr. Borelli found small specimens at Tucu- 

 man, a locality far to the south of those given in the Voy. Amer. 

 Merid. Some specimens before me are labelled Lima and Cuzco. 



The spire is proportionally longer in this species than in B. tham- 

 noicus. 



B. THAMNOICUS (d'Orbigny). PL 2, figs. 20, 21 ; pi. 30, fig. 9. 



Shell oblong-conic, moderately solid, umbilicate ; purplish-brown, 

 with whitish and yellow irregular streaks and lines, the lighter color 



