CATALOGUE 
CETACEA OF THE NORTH PACIFIC OCEAN. 
OSTEOLOGICAL NOTES, AND DESCRIPTIONS 01 SOME NEW POEMS ; 
WITH SPECIAL REFEBENCE TO 
THE FOBMS DESCRIBED AND FIGURED IN THE FOREGOING MONOGRAPH OF PACIFIC 
CETACEA, BY CAPTAIN C. M. SCAMMON, U. S. R. M. 
By W. H. DALL, 
Smithsonian Institution. 
The object in the following Catalogue — besides bringing together condensed 
descriptions of the species of Cetaceans reported from the Pacific, and such of 
unknown habitat as might have come from that ocean, with references to such 
figures and fuller descriptions as may be readily consulted by the student — has 
been especially to determine, as exactly as possible, the genera and species described 
by the author in the preceding pages of this work, in order that his figures and 
contributions to our knowledge of the habits and natural history of those animals 
may have their fullest value for the scientific student of the group in question. 
I have adopted in full the general groups eliminated by Professor Theodore 
Gill, of the Smithsonian Institution, in the Catalogue of the Families of Mammals 
published by the Institution ; a course warranted not less by the scientific standing 
of the author in question, than by the paucity of works of reference on this coast, 
and the confusion which has hitherto existed among the best naturalists in regard 
Maeine Mammals.— 36. [ 281 ] 
