192 HELIX-SOLAROPSIS. 



lunar, a little oblique, margins of peristome converging, joined by 

 a very thin callous, outer and basal margins very narrowly expand- 

 ed, columellar slightly dilated ; umbilicus 1 to H mill, in width, deep. 



Alt. 6, diam. maj. 11J, min. 9| mill. 



Alt. 6, diam. maj. 12, min. 1(H mill. 



Marmato, New Grenada. 



H. marmatensis PFR. in Proc. Zool. Soc. Lond. 1854, p. 57 ; 

 Monog. Hel. Viv., iv, p. 295. REEVE, Conch. Icon., f. 1308. 



One of the smallest species of Solaropsis. It may be known by 

 the color-pattern, lusterless, hirsute surface, and convex, not angular 

 whorls. 



H. INCARUM Philippi. PI. 52, figs. 96, 97, 98. 



Umbilicate, orbicular, plane, densely punctate-granulate, very 

 thin, yellowish, ornamented with three interrupted reddish-chestnut 

 bands, and a subsutural series of flammules, unicolored beneath; 

 spire plane ; whorls 5, convex, the last cylindrical ; aperture broad 

 lunar ; peristome thin, reflexed, columellar margin produced, slightly 

 expanded. (Philippi.) 



Alt. 11, diam. maj. 22, min. 20 mill. 



Dept. of Cuzco, Peru. 



H. inearum PHIL., in Malak. Blatter, xvi, p. 36 (1869); and in 

 PFR., Novit. Conch., iii, p. 475, t. 102, f. 19-21 ; and Monog. Hel. 

 Viv., vii, p. 450. 



The peristome is only slightly reflexed above, much more strongly 

 below and thickened, but scarcely enough to be called callous. The 

 columellar margin is considerably produced, so that the aperture is 

 rendered lunate by the penultimate whorl projecting into it. 

 (Phii) 



H. MONILE Broderip. PL 53, figs. 11, 12, 13. 



Very broadly umbilicated, subdiscoidal, thin, very minutely gran- 

 ulated, translucent, pale corneous, ornamented above with a series of 

 angular streaks or spots ; whorls 4 , convex, the last inflated ; 

 aperture vertical, lunate-circular; peristome simple, narrowly ex- 

 panded above, reflexed beneath. (Pfeiffer.) 



Alt. 10, diam. maj. 25, min. 21 mill. 



Salango and Marmato, Colombia. 



H. monile BROD., Proc. Zool. Soc. Lond. 1832, p. 29 ; DESHAYES, 

 in Fer., Histoire, p. 4, t. 69B, f. 4. PFEIFFER, Monog. Hel. Viv., i, 

 p. 3S9. REEVE, Conch. Icon., f. 572. BLAND, in Ad., Con f rib. to 



