Vol. 5] Jordan. — The Fossil Fishes of California. 



125 



Two smaller scales of this species are imbedded on the rock 

 near the type of Etringus scintillans. It is not certain that they 

 came from the same fish. Still another occurs on another block 

 of stone from the same locality. 



Another large, loose scale is found associated with the type of 

 Etringus scintillans. It is quadrate and entire, marked with fine 

 parallel striations. What it is, I cannot tell. 



Etringus species. 



Mr. W. C. Mendenhall of the United States Geological Survey 

 has sent a large number of specimens of fragments of fossil fishes 

 found in the Monterey shales of the middle Miocene. These were 

 obtained by Mr. W. 0. Clark in Brea Canon, Orange County, 

 California, about one and one-half miles from Olinda. They are 

 imbedded in rather hard, coarse, blackish, siliceous shales. 



Among the specimens are very many detached scales, three 

 sections of the vertebral column, with ribs and one specimen 

 showing part of a caudal fin. The scales are large, cycloid, quad- 

 rate in form, some of them showing digitate furrows, and more 

 or less distinctly enameled. The scales are like those of "Etrin- 

 gus species" above mentioned. 



In the best specimen twenty vertebra^ are shown. These are 

 from the middle of the body and are essentially like those of 

 Etringus scintillans. The basal bones of the anal fin are very 

 numerous and slender. The specimen showing part of the caudal 

 fin is certainly like the others. The tail is homocercal or nearly 

 so, and the rays are very slender. The form of the fin is not 

 shown. 



There is also a vertebral column which looks more herring- 

 like, with twenty-eight vertebras present, but there are Etringus 

 scales lying about it. There is little doubt that all these frag- 

 ments belong to one-species, and this is probably identical with 

 Etringus scintillans. 



