Report U. S. i<\ C. 1883.— True. Cetaceans. 



PLATE XJ. 



31. SibbaUHns velifeiH!^, (Cope). Pucilic Fiuback Whale. 



Length, 80 feet. (After Scaniiuon.) 



^^ 



X 



32, Balwna mysticetus. Linu6. Bowhead Whale. 

 Lengtli, 60 feet. (After ScaramoD.) 



GENEllA OF CETACEANS. 



