University of California Publications. 



[Geolouy 



L'ogenio bowersi Jordan. 

 Merriamella doryssa Jordan. 

 Scombroid fish. 

 Sebastodes rosw Eigenmann. 



CRETACEOUS (Chico formation). 



Hemipristis chiconis Jordan. 

 Lamna species'? 

 Isurus desorii (Agassiz) f 

 Fhareodus species? 



TRIASSIC. 



Sybodus shastenis Wemple. 

 Acrodus wemplice Jordan. 

 Soloptychus species. 

 Xenesthes velox Jordan. 



SUPPLEMENTARY NOTES ON AMERICAN FOSSIL FISHES. 



Family CLUPEIDJE. 

 C4enus Knightia Jordan (new genus). 



Knightia eoccena Jordan (Clupea. humilis Leidy), new specific 

 name. 



In his monumental work on the Tertiary Vertebrata, 1884, 

 p. 74, Professor Cope calls attention to the fact that the genus 

 Diplomystus of Cope is composed of two sections. In the typical 

 section Diplomystus (dentatus) the dorsal scutes are transverse 

 with pectinate borders, a median tooth being especially promi- 

 nent. In the second section, the scutes are not wider than long, 

 and there is but a single median tooth, at the end of a median 

 longitudinal carina. 



These two sections differ in other regards, and the second may 

 well be held to constitute a distinct genus, to which I suggest the 

 name of Knightia, in honor of the late Wilbur Clinton Knight, 

 of the University of Wyoming, an indefatigable student of the 

 paleontology of the Kocky Mountains. 



The type of Knightia is Clupea humilis Leidy = Clupea pu- 

 silla Cope. As the name humilis is preoccupied in Clupea by 

 Clupea h umilis von Meyer, and the name pusilla by Clupea pu- 

 silla Mitchill, the species is left without a distinctive title and 

 may stand as Knightia eocwna Jordan. The species is not very 



