n6 



CRETACEOUS AND TERTIARY FISH. 



Fig. 66. — Edaphodon smockii (Cope). (Type, from Hussakof.) 



This seems to be a well-marked species, about half the size of 

 the smaller B. divaricatus. It is much less stout than in the latter 

 and also less elongate than B. tripartitus. 



Formation and locality. Known from the types in the Ameri- 

 can Museum at New York, consisting - of three mandibular teeth 

 and two fragments, and one of these represented only by an 

 anterior extremity is thought by Hussakof to be probably differ- 

 ent. They are all ascribed to< the Greensand No. 5 [Hornerstown 

 marl, K.] from Hornerstown in Monmouth County (J. C. Miers). 

 I have not examined any specimens. 



Edaphodon eooenus (Cope). 



Ischyodus eocccmis Cope, Rep. U. S. Geol. Surv. Terr., II, 1875, pp. 285, 288. 



Eocene greensand of Farmingdale, Monmouth Co., N. J. 

 Edaphodon eocctnus Hussakof, Bull. Amer. Mus. Nat. Hist., XXV, 1908, p. 



37, fig. 14 (type). 



Mandibular with outer border of beak rising abruptly to con- 

 siderable elevation, supporting anterior outer dentinal area. Lat- 



