THE KANSAS UNIVERSITY 

 SCIENCE BULLETIN. 



Vol. XIIL] may, 1920. [No. 7. 



Anguillavus hackberryensis.* 



A new species and a new seuus of fish from the Xiobrara Cretaceous of Kansas. 



BY H. T. MARTIN. 



(Plate TI.) 



ALTHOUGH not a new genus of fish in the proper sense of 

 of the word (the generic name having been given by Hayf 

 to similar forms from the Upper Cretaceous of Mount 

 Lebanon, Syria), this is the first time so far as the writer is 

 aware that this genus has been reported from the Niobrara 

 Cretaceous of Kansas, hence the term. 



The species I have named for the locality in which the speci- 

 men was found, a locality made famous by the early discov- 

 eries of Williston and Mudge. 



It is rather strange that, after fifty years of collecting by as 

 many parties, not a single fragment has been found referable 

 to this genus. Yet one would naturally expect that among the 

 thousands of fossil fishes that have been collected from the 

 deposits of this once great inland sea some member of this 

 group would have been recognized. 



The specimen here figured and described was found by the 

 writer during the L^niversity Expedition of 1919, on Hackberry 

 creek, Gove county, Kansas, six miles east of Gove City. 



When found the specimen was weathered out and fully ex- 

 posed as shown in the plate. The process of weathering had 

 unfortunately carried away the greater part of the front por- 

 tion of the skeleton, leaving only one or two bones of the skull," 



* Received for publication on May 18. 1921. 



t On a collection of Upper Cretaceous fishes from Mount Leba-non, Syria, with descrip- 

 tions of four new genera and nineteen new species, p. 439, by O. P. Hay. 



(95) 



