The Cretaceous Fauna of Pondolaiul. 327 



Remarks. — This species is represented by three examples in the 

 Siu^vey Collection. It does not appear to resemble very closely any 

 forms from Upper Cretaceous deposits which have already been 

 described in the works of Stoliczka, Holzapfel, Gabb, Stanton, 

 Kaunhowen, &c. 



Cancellaria, sp. 

 Plate XL., fig. 12. 

 This species, which is represented by a single imperfect specimen 

 in the Griesbach Collection, is distinguished from C. meridionalis by 

 its more elongate shell, the more convex and rounded whorls of the 

 spire, the absence of a sulcus on the posterior part of the whorls, 

 and the much smaller transverse ribs. 



Family PLEUEOTOMID^. 

 Genus EOSTELLITES, Conrad. 



EOSTELLITES CAPENSIS, Sp. nOV. 



Plate XL., fig. 13. 

 1871. Fasciolaria assiviilis, Griesbach, Q.J.G.S., xxvii., p. 62 (not 

 Stoliczka). 



Description. — Shell slender, fusiform, consisting of about seven 

 whorls. Spire acute, forming rather less than one-third of the 

 entire length of the shell. Spiral angle about 48°. Whorls convex, 

 subangular just in front of the middle. The part of the whorls 

 behind the angle is flattened. 



Most of the whorls of the spire are ornamented with nearly straight 

 transverse ribs, which are more prominent on the anterior than on 

 the posterior part of each whorl. On the penultimate whorl these 

 ribs become less distinct, and on the last whorl the only ornamenta- 

 tion consists of numerous tine growth-lines, which on the posterior 

 flattened part slope backwards to the suture. 



Aperture long, rather narrow, passing gradually into the anterior 

 canal. Outer lip thin, sharp. Columella with four oblique folds 

 near the middle or just posterior to it ; the anterior fold is less pro- 

 minent than the other three, which are strong and narrow. 



Length 63 mm. ; breadth 23 mm. 



Affinities. — This species resembles B. gracilis, Stanton, ■' from the 

 Pugnelhis Sandstone of Colorado, but differs in that the whorls are 



* The Colorado Formation (Bull. U.S. Geol. Survey, No. 106, 1H93), p. 1.57, 

 pi. xxxiv., figs. 1-3. 



