ir,i 



Fifi. 8iB. Prioni- 

 (idus <il>brevi(itus, x 

 13 (after Hiiule). 



((hinrt. 



Fig. 33C. Prionio- 

 d»s clti vat lift, X 13 

 (after Hinde). 



(Qnnrt. 



Distinguisbiui>- ( 'hnrncters. — Short, stout 

 base; long, neai-ly sti'ai<i,]it, cylindrical, 

 blunted iiiaiii end-tooth ; denticles two. small. 

 blunt, with knobs at their summits. 



Found in the Conodont bed of the Genesee, 

 at Section 1. (Hinde.) 



Pkioniodus clavatcs. Hinde. ( Fio-. 3;U\ 

 Journ. Geol. Soc, Vol. XXXV., p. :;G(), PI. XV.) 



Distin*>-uishinij; ( 'ha.mctcrs. — ArcluMl, nar- 

 row, stout base, convex in section: main 

 central tooth straight, c^dindrical, and 

 blunted: denticles similar to central tooth, 

 four on one side, two on the other. 



Found in the Conodont bed of the Gene- 

 see, at Section 1. (Hinde.) Upper Moscow shale, Section 

 1 (rare). 



Pkioniodus ANCULATUS. Hinde. (Fig. 3ol) 

 .lour. Geol. Soc, Vol. XXXV., p. 8()0, PI. 

 XV.) 



DistiiiL!;uis}iui!j; ( '/h-ir.-ictcrs. — Narrow, thin, 

 arched base, the two halves meeting at an 

 acute angle; main tooth central, long, 

 straight, com])ressed, with median longitudi- 

 nal groove; denticles, four on each side, 

 slightly curved ; delicate and brittle. 



Found in the Genesee shale, at North Evans, Section 1 (?). 

 (Hinde.) 



PiuoxioDFS AoicuLAEis. Hiiule. ( Fig. 38E.) (Quart. 

 Joui-. Geol. Soc, Vol. XXXV.. p. 8(>0, PI. XV.) 



D is t i n g u is h i n g 

 Characters. — Wide, 

 thin, polished and 

 transparent, straight 

 or slightly arched 

 basal portion. Main ^ o.,r. r, ■ , 



i- Fir;. .33E. Prioiiiodna acirnhtris. Two styles of 



tooth near one end teetii. x 13 (after Hi.uie). 



large, slightly curved, compressed; denticles, two on one 



Fig. 331). Prio- 

 niodus a iKjxdatns, 

 X 13 (after' Hinde) 



