STROPHOCHEILUS-BORUS. 17 



spirally entering fold above; margin gradually expanding and 

 spreading in a thin callus over the parietal wall. 



AH. 83, diam. 43 mill. ; apert., alt. 44, width 32 mill. 



Bolivia, provinces Yumja* <ind Ayupaga, on the northeastern .*/,/// 

 of the eastern Cordillera (Orb.) ; Amable Maria (Jelski) and Prov. 

 Carabaya, Pfi?"u(Rairnondi) ; Northern Pent, (Phil. Acad. Colin.) 



Helix santa Cruzii d'ORB., Syn., p. 15. Bitlimiis santa Cruzii 

 d'ORB., Voy. dans 1'Amer. Merid. p. 302, pi. 38, f. 1, Z.Kulimm 

 santacruzensis PFR., Novit. Conch, iii, p. 416, pi. 95, f. 1, 2. B. 

 sanctce Crucis BECK, Index, p. 52. MARTENS, Novit. Conch, v, p. 6. 



The form is slimmer than B. huascari, especially in the spire. 

 The upper part of the columella passes with hardly an angle into 

 the parietal wall. The riblets of the latter part of the nepionic 

 shell are notably unequal in length. 



S. LACUNOSUS d'Orbigny. PI. 6, figs. 31, 32. 



Shell imperforate, elongated, inflated, thick, longitudinally very 

 minutely striated, transversely subgranulose ; reddish-brown, with 

 darker longitudinal streaks. Spire conic, subacumiuate, the apex 

 obtuse, strongly striated. Whorls 5|-G. Aperture long, whitish ; 

 lip thick, whitish, reflexed ; columella somewhat twisted, thick. 



Length 85, diam. 38 mill. ( Orb.}. 



Tutu lima, in the north-eastern part of province Cochabamba, Bolivia, 

 at the bottoms of heavily wooded ravines. 



Helix lacunosa ORB., Syn., Mag. de Zool., 1835, p. 15. Bulimus 

 lacunosus ORB., Voy. dans 1'Amer. Merid. p. 302, pi. 36, f. 5, 6. PFR. 

 Monogr.ii, p. 28. MARTENS, Novit. Conch, v, p. 7. 



Evidently differs from the last in being heavier with broader, 

 thicker lip and slenderer form. I have not seen the species. 



S. MATHIUSII d'Orbigny. PI. 7, figs. 4, 5 ; pi. 9, fig. 4-"). 



Shell rather small for the group, solid, ovate-oblong, the spire 

 short, thick and with rounded vertex. " Uniform dark purple- 

 brown, summit violaceous, suture paler ;" specimens without cuticle 

 are purplish-brown on the spire with a wide sutural white band, be- 

 coming lighter on body-whorl, whitish at base. Whorls 5, the earlier 

 3 forming the nepiouic portion, which has narrow radial riblets ex- 

 tending from suture to suture ; following whorls with coarse, irreg- 

 ular longitudinal wrinkles; suture rather superficial. Aperture 

 2 



