ODONTOSTOMUS. 57 



nearly 7-toolhed : one parietal lamella, a subquadrangular columellar 

 lamella, third tooth oblique and on the left side of the effuse base, 

 and within the outer lip there are three subequal and one minute 

 fold. Peristome white, moderately expanded throughout. Length 

 23-25, diam. 7^-8 mill.; aperture with peristome 8J mill, long, 5 

 wide (/yK). Brazil: Santa Catharina (Cuming coll.). 



Bulimus catharince PFR., P. Z. S., 1856, p. 389 ; Monogr. iv, 436. 



Very closely related to 0. fusiformis Mke., as Pfeiffer remarks, 

 and probably a variety of that South Brazilian species. 



0. PUNCTATISSIMUS (Lesson). PI. 10, figs. 38, 39, 40, 41. 



Shell deeply rimate, fusiform, gray-white reticulated or finely 

 marbled with opaque-white, having a wide blackish streak behind 

 the lip, interrupted by transverse white marks. Surface very 

 shallowly pitted, and finely striate spirally. Spire having convex 

 outlines, rose-tinted near the summit, the apex obtuse. Whorls 8, 

 but slightly convex ; the last tapering below, pinched at the base 

 into a short carina in the middle, grooved on the umbilical side of 

 the carina. Aperture oblique, oblong, obstructed by 7 to 9 white 

 teeth : a compressed parietal lamella ; a large subvertical columellar 

 lamella ; two small, compressed approximate folds within the basal 

 margin, the right one sometimes wanting and three acute folds 

 within the outer lip, the median one (upper palatal) usually larger; 

 frequently there is another minute fold within the lip near the suture, 

 and sometimes a very small angular fold is developed opposite it on 

 the parietal wall. Intervals between the folds blackish-brown. 

 Peristome white (rarely rose), very widely expanded and reflexed, 

 flattened. 



Length 27, diam. 8, length of aperture 10^ mill. 



Length 26 J, diam. 8^, length of aperture 11 mill. 



Brazil : llha de Sta. Catharina* prov. Sta. Catharina (Lesson, 

 King); Province of Sao Paulo, at Iguape etc. (v. Ihering). 



Clausilia punctatissima LESSON, Voy. de la Coquille, Zool. ii, pt. 



1, p. 329, pi. 15, f. 3 (living animal), a, b (shell), 1830 ; Tsis, 1833, 

 p. 131, no. 74, pi. 2, f. 3 (copy of preceding). Bulimus punctatissi- 

 mus PFR., Symbols ii, p. 120 ; Monogr. ii, p. 84 ; iii, 367 ; iv, 436 ; 

 vi, 75 ; Conchyl. Cab. p. 192, pi. 56, f. 5, 6. REEVE, Conch. Icon, 

 pi. 38, f. 225 Clausilia exesa POT. & MICH., Galerie, i, p. 190, pi. 

 19, f. 17, 18 (1838). Helix exesa FER., Hist., pi. 163, f. 3, 4 ; not 



