; 
Report U.S. F.C. 1883.—True. Cetaceans. PLATE VII. 
Ato 
'19. Pseudorca crassidens, (Owen) Reinhardt. False Killer. 
Length, 16 feet. (After Reinhardt.) 
20. Orca atra, Cope. Killer. 
Length, 20 feet. (After Scammon.) 
ju 
21. Physeter catodon, Linné. Sperm Whale. 
Length, 60 feet. (After Scammon.) 
: GENERA OF CETACEANS, 
