- Report U.S. F.C. 1883.—True. Cetaceans. PLATE IX. 
25. Lurardius Arnuxi, Duvernoy. Arnux’s Whale. 
Length, 29 feet. (After Knox.) 
26. Hyperoodon rostratus, (Chemnitz) Wesmael. Bottlenose Whale. (Female. ) 
Length, 30 feet. (After Wesmael.) 
27,. Rhachianectes glaucus, Cope. California Gray Whale. 
Length, 44 feet. (After Scammon.) 
GENERA OF CETACEANS. 
