120 PUPOIDES. 



riblets sometimes partially obsolete, and there is a small an- 

 giilar tubercle inward from the insertion of the lip. The 

 color is decidedly brownish corneous, the lip paler but not 

 white. A specimen received from Schaufuss, probably from 

 the original lot, measures: length 3.54, diam. 1.34, length of 

 aperture 1.05 mm.; 5y 2 whorls (fig. 14). Pfeiffer's dimen- 

 sions were evidently only approximate, as the ratio of diam- 

 eter to length does not agree with his figures, one of which is 

 copied in fig. 15. 



7. PUPOIDES PAREDESII (Orb.). PI. 11, figs. 10-12. 



The shell is oblong, pupoid, umbilicate, thin, marked longi- 

 tudinally with raised ribs, widely spaced. Spire nearly cylin- 

 dric with abruptly truncate summit, composed of 6 convex, 

 rounded whorls separated by a deep suture. Aperture oval, 

 without teeth, having the peristome thick, a little reflected. 

 Color uniform dirty fawn, the aperture whitish. Length 5, 

 diam. 2 mm. (Orb.). 



Bolivia: near La Paz, on the road los Obrages, elevation 

 not less than 3600 m., on walls and under stones under bushes 

 (type loc.). Also a smaller form [limensis Phil.] near Lima, 

 Peru, at the foot of Mount San Cristobal, under stones in 

 somewhat humid places, only a few hundred meters above sea 

 level (Orbigny). 



Helix paredesii ORBIGNY, Mag. de Zool., 1835, p. 21. Pupa 

 paredesii ORB., Voy. dans 1'Amerique Meridionale, Mollusques, 

 p. 322, pi. 41, f. 3-6. HIDALGO, Journ. de Conchyl., 1870, p. 65 

 (Lima, Peru; Guayaquil, Ecuador; Cobija, Bolivia, Paz). 

 Pupoides paredesii Orb., KOBELT, Conchyl.-Cab., Bidwiimckz, 

 p. 921, pi. 130, f. 7, 8. 



D 'Orbigny notes the unusual distribution of this species, 

 from the cold zone of La Paz to the hot region of Lima; he 

 could find no difference in the shells except that those of Lima 

 are smaller. I have not seen topotypic paredesii but only the 

 Lima form, limensis Phil., which may perhaps prove to be a 

 subspecies. 



P. limensis (Philippi). PI. 11, figs. 18, 19. Shell rimate, 

 subcylindric, with tapering apex, thin, white, obliquely striate- 



