Report U.S. F. C. 1883.—True. Cetaceans. PLATE I. 
‘Gertie; 
Sear 
1. Platanista ganyetica, (Lebeck) Wagler. The Susu. 
Length, 8 feet. (After Eschricht.) 
2. Inia Geoffroyi, (Desmarest) Gray. The Inia. (Young specimen. ) 
: Length, 8 feet. (After F. Cuvier.) 
3. Pontoporia Blainvillei, (G:rvais) Gray. The Pontoporia. 
Length, 5feet. (After Malm.) 
GENERA OF CETACEANS. 
