296 PROCEEDINGS OF THE ACADEMY OF [1897. 



Teeth, hinge and interior otherwise as in E. lunulata. Length 4 - 75, 

 height 4, diam. 1*9 mm. 



Maldonado Bay, in 3 to 6 fathoms. 



Numerous specimens collected are very much alike except in pat- 

 tern of color. 



Turbonilla dispar n. sp. PI. VI, figs. 5, 6, 7. 



Shell moderately attenuated, composed of about 8 somewhat con- 

 vex whorls after the nucleus, the latter globose, partly immersed, 

 with very short low spire of less than two whorls. Sculpture of 

 spiral grooves at unequal intervals, with oblong punctures along the 

 grooves ; the upper part of spire, especially when slightly eroded, 

 marked with series of square punctures. Color light brown. 



Alt. 8-2, diam. 2'3 mm. 



Maldonado Bay, Uruguay, in 3-6 fathoms. 



Distinguished by the grooved and punctate sculpture, and the 

 globose, Naticoid nucleus. 



Turbonilla Uruguayensis n. sp. PI. VI, figs. 8, 9, 10. 



Shell of the usual slender tapering form, the greatest diameter 

 contained about 3i times in the height ; bluish-white, thin but rather 

 strong ; the sides straight, whorls a trifle convex, with slightly but 

 distinctly impressed sutures. Whorls 11, not counting the tilted 

 nucleus ; the two earlier whorls finely costulate or smooth from wear ; 

 succeeding whorls down to the end of the seventh with deep, regu- 

 lar, rather oblique ribs (about 26 in number on the seventh whorl) ; 

 the following whorls vertically and becoming more finely ribbed ; 

 last whorl with the ribs decidedly weaker or subobsolete above, base 

 convex and smooth. Apex turbinate, tilted at a right angle with 

 the axis of the shell, consisting of nearly 3 whorls. Aperture irreg- 

 ularly pyriform, acuminate above, its length contained 41 times in 

 the height of shell ; the columella subvertical, simple, its edge revo- 

 lute. Alt. 10"3, diam. 3 mm. 



Maldonado Bay, Uruguay, in 3 to 6 fathoms. 



Larger than any of the similarly sculptured species of the Gulf 

 of Mexico or east coast of South America with which I have been 

 able to make comparison. 



Ocinebra cala n. sp. 



Shell fusiform, solid and thick, of a dirty white color. Whorls 

 fully 62 or 7, convex. Sculpture: prominent longitudinal folds, 

 which are strong but rounded and wave-like, the intervals like the 



