AURIS. 133 



with a very thin callus, not modifying the external coloring. Throat 

 pallidly showing the streaks and bands through. Length 35, diain. 

 23, aperture including peristome 22 long, 19 wide; excluding per- 

 istome 16x10^ mill. (v. Mart.} 



Eastern Peru : Valley of the Urubamba, one of the upper tribu- 

 taries of the Amazon. (Staudinger.) 



Bulimus icterostomus v. MART., Nachr. d. D. Malak. Ges., xxxiii, 

 p. 149 (October, 1901). 



" This handsome species agrees well with B. melastomus Swains., 

 in the structure of the aperture, the general contour, and partially in 

 the coloring, and might at first sight be taken for a small, yellow- 

 mouthed variety of that species ; but the absence of sculpture on the 

 upper whorls, the total want of black at the aperture, and the geo- 

 graphic separation, all tell against such a view. B. melastomus with 

 its varieties occurs to my knowledge only in the provinces of Bahia 

 and Illheos." (v. Martens). 



A. GLABRA (Gmel.). Vol. x, p. 114. 



Figured as Bulla s. Voluta auris Judce by MEUSCHEN in Gronovius' 

 Zoophylacium iii, expl. of pi. v, pi. 18, f. 12 (1781). 



Subgenus GONYOSTOMUS Beck. 

 A. TURNIX (Gould). PI. 18, figs. 53, 54, 55. 



Shell deeply rimate, long-ovate, copiously blotched and marbled 

 with white and brown on a pale ground, the white blotches somewhat 

 arranged in spiral bands, the brown forming interrupted wide longi- 

 tudinal streaks. Surface slightly glossy, closely plicatulate longi- 

 tudinally, the wrinkles cut into granules by spiral impressed lines; the 

 granulation much more conspicuous below the suture and at the base. 

 Spire conic, the apex very obtuse, as though truncate. Whorls 

 nearly 5, convex, the last rather swollen, full and convex beneath. 

 Aperture oblong, vertical, variegated within ; peristome narrowly 

 expanded and reflexed, orange colored. Columella with an oblique, 

 straight fold within. Length 48, diam. 25, longest axis of aperture 

 29 mill. 



Brazil: Organ Mts. (Gld.); Serra da Bocaina, prov. S. Paulo 

 (von Ihering). 



Bulimus tarnix GLD., Proc. Bost. Soc. Nat. Hist., ii, 1846, p. 101 ; 

 Otia, p. 199 PFR., Monogr., iii, p. 315 ; iv, 395. 



