94 CATALOG OF FOSSIL FISHES IN THE MUSEUM 



E 1949 Two fragments, ornamented with large tubercles, apparently 

 referable to this species. 



Arthrodira, Gen. et sp. indet. 



In addition to the Arthrodiran remains described in the preceding 

 pages, there are a number of plates in the collection which apparently 

 also belong to Arthrodires, but which are too imperfect for reference to 

 particular genera. These are briefly described below, and the more 

 interesting ones aie figured. No doubt perfect specimens of most of 

 them wiU in time be found and thus enable one to answer the tantalizing 

 questions which they call forth. 



Fig. 30. Fragment of a Left Mandible of an Indeterminate Arthrodire; 

 Outer View. Nat. Size. E 1945 



a. Mandibles 



There are three imperfect mandibles in the collection, representing 

 one, and perhaps two, new genera of Arthrodires, but which are too 

 imperfect to be named. For the present it seems advisable merely 

 to illustrate and call attention to them. It is to be hoped that 

 better material will soon be discovered which will make possible the 

 defining of these interesting forms. 



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

 Erie County, N. Y. Collected by W. L. Bryant. 



E 1945 Fragment of a left mandible, consisting of the posterior half 

 of the functional portion and the beginning of the blade 

 portion (text-fig. 30). The oral margin is a cutting edge, 

 rather blunt through use. At its posterior end are five 

 low denticles, occupying a space of 12 mm. Behind the 



