306 APPENDIX. 



North Seas of Europe. Tlie differences which distinguish the variety from the common form, 

 according to Captain Scammon, are as follow: The spout -holes are said to be higher, and a 

 bunch, or hump, rises from the "small" of the back, about six feet forward of the flukes, extend- 

 ing along the back two or three feet, and rising above it about six inches. They are also said to 

 yield a larger propiortion of baleen to the oil than the others. They have been frequently taken 

 in the north-east gulf of the Ochotsk Sea. Before the varietj^ can be confirmed, a more thorough 

 knowledge of it is, of course, indispensable. Baleen of the normal form in B. M. and Mus. S. I. 



Summary. 



Out of forty -four species which appear to be more or less thoroughly characterized, ten are of 

 unknown habitat. Leaving these out (with all species based on insufficient material), we have as 

 the approximate distribution of the known Pacific Cetacea : Japan, five species ; northern seas, six 

 species, including two or three which visit California ; warm seas and South Pacific, eleven species ; 

 coast of western North America, from the Aleutian Islands to Central America, eighteen species, 

 including several visitors from the Arctic Seas. The species are as follow : 



JAPAN. NOHTHEKN SEAS. 



Delphinus longirostris ? Delphinapterus catodon. 



Neomeris phocsenoides. Orca rectii^inna. 



Globiocephalus Sieboldii. Rhachianectes glaucus. 



Megaptera kuzira. Megaptera versabilis. 



Balfena Sieboldii? Balaanoptera velifera? 



Balfena mysticetus. 



WARM SEAS AND SOUTH PACIFIC. 



Clymenia alope. Lagenorhynchus albiro stratus. 



C. obscura. Leucorhamphus Peronii. 



Tursiops catalania. Orca magellanica. 



Cephalorhynchus eutropia. O. destructor. 



Lagenorhj-nchus clanculus. O. ijacifica. 



Physeter macrocephalus. 



The absence of Fhoccena, and of well-defined species of the ilysliceli, from the warm seas, is 

 very marked, as is the paucity of Denticeti in the northern seas, while in the north European seas 

 the latter are well rejDresented. 



WEST COAST OF NOETH AMERICA. 



Delphinus Bairdii. Grampus Stearnsii. 



Tursiops Gillii. Kogia Floweri. 



Lagenorhynchus thicolea. Physeter macrocephalus. 



L. obliquidens. Rhachianectes glaucus. 



Leucorhamphus borealis. Megaptera versabilis. 



Orca rectipinna. Balrenoptera velifera. 



O. ater. B. Davidsoni. 



Phocfena vomerina. Sibbaldius sulfureus. 



Globiocephalus Scammoni. Balasna Sieboldii. 



It is highly probable that to this list may be added two or three species of gi-ampuses and 

 doli^hins, of which sufficient material has not yet been obtained for secure identification. 



