128 



University of California Publications. 



[Geology 



Santa Monica Range, by Dr. Bowers. It belongs apparently to 

 an elongate fish, with eye very large, about one-fifth the length of 

 the head. The snout is long, and the mouth seems rather large, 

 the upper jaw the longer. There is no trace of teeth. The out- 



Fig. 22. Pterothrissoid fish. No. 35. Miocene of Brown 's Canon. 



line of the head suggests that of the Japanese fish, Pterothrissus 

 gissu Hilgendorf. But there is no evidence that this species be- 

 longs to Pterothr'.'ssits or to any related genus. The eye is much 

 larger than in Isteus. 



Family COBITOPSIM (?). 



36. Rogenio solitudinis Jordan, new genus and species. 



In the white marl rocks of Soledad Pass are found numerous 

 specimens of a very small fish of a new genus, to which we give 

 the name of Rogenio. 



