﻿On Conodonts and, Fossil Annelid, Jaws. 



149 



extends from the point of the hook to the posterior end. Color of jaw a 

 glossy, jet black. Size a little over ^ of an inch in length, width less 

 than the length. 



This beautiful little fossil seems to be perfect, and is remarkable for the 

 very delicate anterior hook, which is as sharply pointed as a fine needle, 

 and stands out free from the rock to which the posterior end is slightly 

 attached. 



Position and locality. Bed of a "run" in Warren Co., 0., near the 

 Clermont Co. line, about four miles from Loveland. Cincinnati group. 

 Found by the writer. 



Arabellites hindei, Sp. nov. 



(Plate VII., figure D.! 



Jaw with a prominent, prolonged tooth in the anterior end, which stands 

 at nearly right angles with the jaw, and is slightly curved inward at the 

 point; just below the point is a regular curve forward and downward to 

 the base of the jaw (as fig. D is placed). Back of the hooked-tooth are 

 six small but conspicuous teeth, three of them standing erect, the other 

 three slope backward the middle one (longest of the six) at a lower angle 

 than the others; back of the sixth dentation, near the posterior end, is a 

 slight elevation in the jaw which may be an immature tooth. In the 

 posterior end of the jaw is an indentation extending to near the middle, 

 causing an apparent pointed projection of the base. A longitudinal ridge, 

 about the middle of the jaw, extends from the posterior end to the base of 

 the anterior long tooth. Color of the jaw a shiny, jet black. Length 

 of an inch, width 4 of the length. 



The very fine specimen used for this description is partly embedded in 

 rock at the posterior end, but the other end stands out free. It was found 

 by the writer in the bed of a "run " in Warren Co.. 0., about four miles 

 from Loveland, Clermont Co., 0., in the Cincinnati group. 



