SOUTH AMERICAN LEPTINARIA. 303 



ence, and apparently resembling L. lamellata in surface and 

 aperture. 



11. L. ANOMALA (Pfeiffer). PI. 46, fig. 9. 



Shell subperforate, oblong-conic, thin, very delicately stri- 

 ate, pellucid, glossy, waxy-hyaline. Whorls 6%, convex, the 

 last about two-fifths the total length. Columella short, not 

 reaching to the base, twisted inward and obliquely truncate. 

 Aperture semfcoval; peristome unexpanded, simple, the right 

 margin curved forward a little in the middle; columellar 

 margin duplicated, reflexed, leaving an umbilical perforation. 



Length 9.5, diam. 4, aperture 3.66x2 mm. (Pfr.). 



Peru (Pfr. coll.). 



Achatina anomala PFR., Symbolae, iii, p. 89 (1846) ; Mon- 

 ogr., ii, p. 270; iii, 472; iv, 575; vi, 193; Conchyl. Cab., p. 

 309, pi. 24, f . 16, 17 ; and in Philippi> Abbild. u. Beschreib., 

 etc., ii, p. 214, pi. 1, f . 12. Not Opeas anomalus Pfr., STREBEL, 

 Beitrag, v, p. 107, 108. 



I have not seen this species. Pfeiffer notes that the colu- 

 mellar margin of the aperture is twisted and truncate in- 

 wardly, but outwardly it is reflexed, forming a false umbil- 

 icus. The shell is rather strong but quite thin, translucent, 

 clear wax-colored and finely striate. 



12. L. AEQUATORIA (Miller) . PI. 46, fig. 5. 



Shell perforate, ovate-conic, thin, glassy, smooth, arcuate- 

 striate under the lens, glossy. Spire convexly conic, the apex 

 subacute. Whorls 8, convex, separated by a deep suture, the 

 last nearly one-third the total length. Columella twisted, 

 provided with an obliquely entering fold in the middle, arcu- 

 ately passing into the peristome. Aperture not oblique, sub- 

 oval. Peristome simple, acute, the right margin curving for- 

 ward in the middle, basal margin .a little receding, columellar 

 margin dilated, adnate above, the margins generally joined 

 by a white callus. Length 14, diam. 5, aperture 4.66 x 3 mm. 

 (Miller}. 



Ecuador: Guayaquil, in damp places, abundant (Wolf). 



Spiraxis aequatoria MILL., Malak. Blatter n. F., i, p. 127, 

 pi. 13, f. 6 (1879). Lamellaxis aequatorius Mill., STREBEL, 

 Beitrag Mex., etc., v, p. 113, pi. 17, f. 1. 



