124 



University of California Publications. 



[Geology 



opposite front of dorsal. Pectorals broken, apparently small. 

 Caudal slightly heterocercal, the tips broken. Anal probably 

 long, but no trace of it distinct in this specimen. 



The type of this species is a single specimen six inches long. 

 It is imbedded in a hard yellowish shaly sandstone reputed of 

 Miocene Age. The specimen was found by Rev. Stephen W. 

 Bowers in the mountains of the Soledad Pass, about twenty miles 

 north of Los Angeles. 



The genus belongs to the primitive types of Isospondyli, or 

 herring-like fishes. The well-developed vertebrae leads us to place 

 it among the Leptolepidce, but none of that family, so far as I 

 know, show a lateral line. Pleuropholis, a genus of Pholidopho- 

 ridcB, having a lateral line along the side of the belly, differs in 

 having the scales above this line very deep and plate-like. I am 

 therefore obliged to take a new generic name for this California 

 species, the genus being distinguished by the character of the 

 scales and the low position of the lateral line. The name is from 

 erpov, abdomen; <-Vy° s , tube. 



29. Etringus sp. 



We refer with doubt to Etringus scintillans, a specimen ob- 

 tained from Brown's Canon, four miles north of Soldiers' Home, 

 near Santa Monica. This specimen shows a section of the body of 

 a fish about five inches across, just behind the pectoral fin. It 

 shows a mass of cycloid scales less distinctly enameled than in 

 Etringus, but apparently of similar nature. 



The body of another fish showing only part of the vertebral 

 column and a mass of scales belongs evidently to the same species 

 as the preceding. All the scales on the body are cycloid and not 

 apparently enameled. 



30. Etringus species. 



Around this last named specimen are many large scattered 

 scales one-third to one-half inch in diameter, quadrate, thick and 

 enameled, looking somewhat like the lateral line scales in Etrin- 

 gus scintillans. These scales are marked by four to six or more 

 wavy digitate furrows on either side, and the anterior or free 

 edge is more or less crenate-digitate. 



