BUFFALO SOCIETY OF NATURAL SCIENCES 105 



Original in collection of Mr. Edgar E. Teller. 

 Hydraulic cement rocks (Mid. Devonic) ; Milwaukee; 

 Wisconsin. 



Oestophorus lilleyi (Newberry) 



(PI- 33, fig. i) 



Sphenophorus lilleyi Newberry, Paleozoic Fishes N. Amer., p. 92, 1889. 



In his Paleozoic Fishes of North America, Newberry described (p. 92, 

 PI. XX, fig. 15) an imperfect plate from the Chemimg of Pennsylvania, 

 remarkable for bearing an ornamentation of arrowhead-shaped 

 tubercles. He regarded it as a clavicle probably belonging to 

 a crossopterygian. Since that time, other fragmentary plates with 

 a similar ornamentation have been found, notably in the Hamilton 

 of Wisconsin, but none perfect enough to throw light on their taxo- 

 nomic position. And it is true now as was said by Newberry that, 

 ' 'imtil some other portions of the fish shall be discovered, it will be 

 impossible to speak positively in regard to its relations." 



In the collection of Mr. Edgar E. Teller of Buffalo, there is one of 

 these plates, from the Hamilton of Milwaukee, which seems to bear an 

 attached spine as in Acanihaspis, but as neither the plate nor the 

 spine are very perfect, we hesitate to draw any conclusion from the 

 specimen as to the relationship of the genus. 



Fragmentary plates bearing the same style of ornamentation, and 

 probably referable to the same species, occur in the CqHodont bed at 

 Eighteen Mile Creek. One such plate in the Buffalo Museum is 

 illustrated in Plate 2,3, figure i. 



E 1898 Fragmentary plate showing the characteristic arrowhead- 

 like ornamentation, 8 by 5 cm. 



Hamilton Hmestone (Mid. Devonic) ; Milwaukee, Wis. 

 Collected by Mr. Edgar E. Teller. 



E 2012 Small fragmentary plate showing the arrowhead-like orna- 

 mentation characteristic of this genus (PI. 2)3, fig- i). 



Conodont bed, (Genesee) ; Eighteen Mile Creek, near 

 North Evans, Erie County, N. Y. Collected by W. L. 

 Bryant. 



