1897.] XEW PALEOZOIC VEKTEBRATA. Vl 



ON NEW PALEOZOIC VERTEBRATA FROM ILLINOIS, 

 OHIO AND PENNSYLVANIA. 



{Plates I-III.) 



BY E. D. COPE. 



{Read February 5, 1897.) 



The following pages contain descriptions of new and little-known 

 species of Fishes and Batrachia from the Catskill and Coal Measure 

 epochs. These are based on specimens which are for the most part 

 contained in the private collection of Mr. R. D. Lacoe, of Pitts- 

 ton, Pa. Mr. Lacoe's collection is in this field, and in that of the 

 fossil plants of the region in question, one of the best in existence. 

 I have already described and figured from it the remarkable (?) Eu- 

 ryptoid, Mycterops ordinatus^^ from the Coal Measures of Cannelton, 

 Beaver county, Pa., and the Holonenia riigosa of Claypole from the 

 Catskill of Bradford county.' In the present collection I report 

 the first Batrachian remains found in the Pennsylvania Coal Meas- 

 ures and describe a new genus of Stegocephali from Cannelton 

 (Ctenerpeton). I also note the occurrence of Glyptolepis in the 

 United States for the first time, and by it extend the range of the 

 Catskill fishes in Wyoming county, Pennsylvania. 



The occurrence of a large species of Coelacanthus in the Mazon 

 Creek, 111., deposit is also shown by specimens in this collection. 



PISCES. 



HOLOPTYCHIUS SERRULATUS Sp. nOV., PI. II, Fig. I. 



That the more distinct species of Holoptychius can be distin- 

 guished by their scales is the opinion of those palceichythologists 

 who have studied them. The variety of such scales which is found 

 in the Catskill beds of Pennsylvania and New York is considerable, 



iCope, American Naturalist, i886, p. 1029, PI. XV, Fig. 3. 

 ^Proceeds. Avier. Philos. Soc, 1892, p. 223, Plate VII, Fig. 2. 



