102 CATALOG OE FOSSIL FISHES IN THE MUSEUM 



related form, occurs also in the Conodont bed at Eighteen Mile Creek, 

 as evidenced by a specimen mentioned below. 



E 1856 Fragmentary plate in matrix, showing the characteristic 

 tuberculation of this species. (PL 29. fig. 2.) 



Onondaga limestone (Mid. Devonic); WiUiamsville, 

 N. Y. Collected by Dr. Richard Rathbun. 



E 2014 Fragmentary- plate, in matrix; shown in outer view (PL 30, 

 fig. i). It bears fine tuberculations and is on the whole 

 comparable with the type species, E.fragilis. 



Conodont bed (Lower Genesee) ; Eighteen Mile Creek, 

 North Evans, near Buffalo, N. Y. Collected by W. L. 

 Bryant. 



Eczematolepis telleri (Eastman) 



This species was described and illustrated in detail in a paper by 

 Edgar E. Teller pubUshed in 1906.^' Specimens are there figured 

 showing a broad spine-like plate to which a second plate is attached, 

 the two together suggesting somewhat the arrangement of an Acan- 

 thaspis plate and its spine. But there seems no ground for separating 

 this form, from Eczematolepis as a distinct genus, Phlyctcenacanthus, as 

 was done by Eastman .^^ In fact these specimens from Wisconsin are 

 so like those of E. fragilis, the type species, from Ohio, that there is 

 barely ground even for specific separation from the latter form. 



These plates have generally been found associated with dental 

 elements of FalcBomylus, and it is not improbable that they belong with 

 this type of dentition. 



E 1878 Plate in matrix, shown in outer view. 



Hamilton (Mid. Devonic); Milwaukee, Wis. Col- 

 lected and presented by Mr. Edgar E. Teller. . 



Holonema abbreviatum (Eastman) 

 (PL 31) 



Glyptaspis ahhreviata Eastman, New York State Mus., Mem. 10, p. 147, pi. 13. 

 1907. 



In 1907 Eastman described a ventral plate from the basal strata 

 of the Portage, which was ornamented with raised lines here and 



^ Bull. Wisconsin Nat. Hist. Soc, iv, ig2, pi. iv. 

 *^ Amer. Naturalist, xxxii, ssi> fig- 49- 189S. 



