66 



EOPHYTON JUKESI. (N. Sp.) 



In this species the stems are nine lines in diameter, cylindrical, straight 

 or slightly flexuous. They are longitudinally striated, but the surface of 

 the specimens examined are not sufficiently well preserved to exhibit the 

 dimensions of the striae. It is separated from the former principally on 

 account of its much greater size. 



Arthraria antiquata. (N". gen. and sp.) 



Fig. 33. Part of a slab of sandstone ^ith Arthraria antiquata. 



The fossils for which the above generic and specific names are proposed j, 

 are small cylindrical bodies, with usually an expansion at each end, giving 

 the form of a d,umb bell. Those that I have seen are from six to nine 

 lines in lengthy amd, from the manner in which they are grouped upon the 

 surface of the stone, they appear to me to be segments of a jointed plant. 

 They exhibit no internal structure, but the form is very constant. Simi- 

 lar forms occur in the Clinton formation. 



LiNGULA MURRAYI. (N- Sp.) 



34. 35. 



Fig. 34. Lingula Murrayi. 



35. Lingulella? affinis, ventral valve. 



36. " spissa, a, ventral valve ; b, dorsal valve ; c, side view of both valves. 



Description. ^^heW elongate, sub-pentagonal ; front margin straight or 

 gently convex for a space equal to about twc-thirds the width in the mid- 

 dle anterior angles rounded; sides somewhat straight or very gently 



