CRETACEOUS FOSSILS. 215 



F. Mathewsonii, Gabb. 



F. Mathewsonii, Gabb; Vol. 1, p. 83, pi. 18, fig. 33. 



Martinez Group, Martinez and Curry's ; Tejon Group, Martinez, Clayton 

 and Cochrane's. 



F. Averillii, Gabb. 



F. Averillii, Gabb ; Vol. 1, p. 83, pi. 18, fig. 34. 

 Chico Group, Tuscan Springs. 



F. Diaboli, Gabb. 



F. Diaboli, Gabb; Vol. 1, p. 84, pi. 18, fig. 35. 

 Tejon Group, vicinity of Mount Diablo, Tejon. 



F. aratus, Gabb. 



F. aratus, Gabb; Vol. 1, p. 84, pi. 28, fig. 202. 

 Group ? (Martinez or Chico) Martinez. 



F. flexuosus, Gabb. 



F.flexuosus, Gabb ; Vol. 1, p. 85, pi. 21, fig. 109. 

 Martinez Group, Martinez. 



F. Kingii, Gabb. 



F. Kingii, Gabb; Vol. 1, p. 85, pi. 28, fig. 204. 



Chico Group, Cottonwood Creek, Siskiyou County (not the creek of the same 

 name in Shasta County). 



F. Californicus, Con., sp. 



F. Californicus, Gabb ; Vol. 1, p. 85, pi. 28, fig. 205 a. 



? Clavatula Californica, Con. ; P. R. R. Report, Vol. 5, p. 322, pi. 2, fig. 11. 

 Tejon Group, Clayton, Tejon ; beds intermediate between the Tejon and Mar- 

 tinez Groups, Lower Lake Village, Lake County. 



F. tumidus, Gabb. 



F. tumidus, Gabb ; Vol. 2, p. 145, pi. 26, fig. 22. 

 Martinez Group, Martinez. 



F. occidentalis, Gabb. 



F. occidentalis, Gabb; Vol. 2, p. 146, pi. 26, fig. 23. 

 Martinez Group, Martinez. 



