66 



CATALOG OP FOSSIL FISHES IN THE MUSEUM 



Stenognathus dolichocephalus (Eastman) 



(Text-figs. 21, 22) 



DinicUhys dolichocephalus C. R. Eastman, N. Y. State Mus., Mem. x, 135, 

 pi. V, fig. I, 1907. 



The unique specimen by which this species is known is preserved in 

 the Buffalo Museum (E 2034). It consists of a small slab of shale 

 cont^-ining most of the armor plates and the mandibles of a small 

 Arthrodire. The plates are more or less confused on the slab, most of 



Fig. 21. Stenognathus dolichocephalus (Eastman). Type, X about |. E 2034 



Rhinestreet shale (Portage) ; Sturgeon Point, on Lake Erie, near Buffalo, N Y. 



ADL, antero-dorsolateral; ASG, antero-superognathal; Cran, cranium; DM, 

 dorsomedian; Mnd, mandible; PDL, postero-dorsolateral; R, rostral; SO, sub- 

 orbital; VM, ventromedian. 



