Weller — Kinderhook Faunal Studies. 43 



except the last third of the outer whorl which is marked by 

 rather fine irregular lines of growth. 



Remarks, This shell has the general aspect of a Strapa- 

 roUus, and unless the aperture or the lines of growth are 

 observed, it is impossible to identify the genus with certainty. 

 The genus has not heretofore been recognized in America 

 although several species have been described from the 

 European formations which are equivalent to our Missis- 

 sippian Series. 



A single complete individual has been observed in the 

 Northview fauna, but numerous fragments occur which are 

 believed to belong to the same species. 



Straparollus ? sp. 



PL V. /. u. 



A single specimen of a small lenticular shell in the sand- 

 stone at Northview is probably a member of this genus, but it 

 is too imperfectly preserved to permit certain identification. 



Phanerotinus paradoxus Winchell. 



PL V. f. 6. 



This shell is a smooth, gradually expanding, cylindrical 

 tube, subcircular in cross section, loosely coiled in a plane, 

 the successive whorls not in contact. A single imperfect 

 specimen has been found in the Northview fauna. 



Capulus sp. 



PL V.f. 15. 



A single small specimen of this genus about 9 mm. in 

 diameter has been observed. It resembles G. haliotoides in 

 general form but is too imperfect for certain identification. 



PORCELLIA. — Cf. P. RECTINODA Win. 



PL v.f. 7. 



Shell small ; increasing gradually in size, the increase being 

 about 1 mm. in a distance of 17 mm. upon the outside of the 

 whorl; subcircular in cross section, diameter of the largest 

 specimen 9 mm. Nodes elongate becoming more or less at- 

 tenuate interiorly, slightly oblique, most prominent at a point 

 from i to ^ the distance from the periphery to the inside of 



