PAL.EOZOIC. 



C E P H A L P D A. 



CAMBRIA M AND SILURIAN. 



P I S C E S. 



SPECIES. 



Sub-Kingilom, VERTEBRATA. 



Class, PISCES. 



Cepiulaspid.k. 



Zenaspi.s Lanlnster, 1S69 



— Salweji Ejerion 



J &< 





-^ J O J 









"i-i 1 2 



~ H S 



REFERENCES. 



T'irle Geo!. Maf; 

 for rciVreiicos 



GANOIDEI (OSTEOSTEACI). 



Doc. II, vol. viii, p. 193, t. 6. /"iWc p. 1 76 



423 



