1" 



.).) 



Fig. 35. Polygnathus na- 

 sutus, x 13 (after Hinder. 



Polygnathus nasutus. Hinde. (Fig. 3.").) (Quart 

 Jour. Geol. Soc, Vol. XXXV., p. 364, PI. XVI.) 



Distinguishing ( Characters. — Narrow, 

 elongate, straight base ; broad, flattened 

 main tooth, projecting in a line' with 

 the base; spur blunt, with three spines; 

 denticles twenty, of various lengths. 



Found at North Evans, in the Genesee shale, at Section 1 

 (?). (Hinde.) 



Polygnathus pkinceps. Hinde. (Fig. 36.) (Quart. Jour. 

 Geol. Soc, Yol. XXXV., p. 365, PI. XVI.) 



Distinguishing Characters. — Relatively large size; narrow, 

 elongated base; 

 teeth similar, eleven, 

 large, robust, some- 

 what oval in sec- 

 tion; longest in the *'■* 



renter Fig. 36. Polygnathus princeps,x 13 (after Hinde). 



Found in the Conodont bed of the Genesee, at Section 1. 

 (Hinde.) 



Polygnathus solidus. Hinde. (Fig. 37.) (Quart. 

 Jour. Geol. Soc, Vol. XXXV., p. 365, PI. XVII.) 



Distinguishing Characters. — Base short, 

 very thick, wide; teeth sub-equal, short, 

 stout, obtuse, seven to eleven, closely 

 arranged. 



Found in the Conodont bed of the 

 Genesee, at Section 1. ( Hinde. ) 



Polygnathus crassus. Hinde. ( Fig. 38.) ( Quart 

 Jour. Geol. Soc, Vol. XXXV., p. 365, PI. XVII.) 



Distinguishing Ch aracte rs. — N a r r o w, 

 curved, and relatively thick base; with a 

 prominent ridge, bearing six obtuse crenu- 

 lations; posterior crest with two stout 

 teeth. 



Found in the Conodont bed of the Genesee, at Section 1 . 

 ( Hinde. ) 



*I3 



Fig. 37 

 solidus. 

 Hinder 



Polygnathus 

 x 13 (after 



Fig. 38. Polygna- 

 thus crassus, x 13 



(after Hinde). 



