208 PROCEEDINGS OF THE ACADEMY OF [NoV., 



NEW GENERA OF FOSSIL FISHES FROM BRAZIL 

 BY DAVID STARR JORDAN 



In the year 1909, through the courtesy of Dr. John C. Branner, 

 the collection of fossil fishes of the Servif o Geologico e Mineralogico 

 do Brazil was sent to me for study by the late Orville A. Derby, 

 then head of the Survey and director of the Museu Nacional at Hio 

 de Janeiro. For reasons, easily understood in these days of con- 

 fusion, my report on these fishes has been c'elayed. As, however, 

 reference is made to the new genera concerned in a forthcoming 

 treatise by Dr. Branner on the geology of Brazil, it seems desirable 

 to publish the three new genera named in this report. 



The specimens concerned are of the Cretaceous age and came 

 from Barra do Jardim, Serra do Araripe, at Ceara, Brazil, the local- 

 ity from which Gardner secured for Agassiz the original specimens 

 of several species. These examples, like those of Agassiz, were 

 originally rolled on the beach between tide marks, each becoming 

 the nucleus of a clay concretion. 



We may note in this connection that Notelops brama (Agassiz) is 

 identical with Calaniopleurus cylindricus Agassiz. It should ap- 

 parently stand as Calaniopleurus hrama. Cladocyclus gardneri Agas- 

 siz is probably one of the Osteoglossidse, and not related to the Euro- 

 pean species, lewisiensis, called Cladocyclus by Agassiz and others. 



Family ELOPID^. 

 ENNELICHTHYS new genus. 



Type: Ennelichthys derhyi Jordan. 



In the collection are two large skulls (No. 55 Jardim, and No. 57 

 Jardim, the latter with counterpart) of a large elopine fish evidently 

 allied to the genus Enneles of Jordan and Branner. From the latter 

 it is distinguished by its smaller mouth, the maxillary scarcely 

 extending beyond eye, and by its excessively strong dentition, the 

 anterior teeth in the lower jaws being long, sharp and fang like; those 

 of the upper jaws similar but smaller. 



Ennelichthys derhyi new species. 



The species named Ennelichthys derhyi in honor of the late Orville 

 Adelbert Derby, formerly a fellow student in Cornell University, 



