THE DOLPHINS. 105 
thickness of blubber, about an inch ; its color is quite red, and the oil retained 
the same hue after extraction, and appeared watery. The jaws were furnished with 
sharp, straight, conical teeth. 
These animals are found in large schools, and move over the surface of the 
sea in the same manner as the Globiocephalus. 
SECTION XII.— THE PUGET SOUND GRAMPUS. 
In Port Townsend Bay, Washington Territory, June 19th, 1868, a great number 
of small whales, evidently a species of grampus, were seen gamboling, in squads of 
six or eight individuals, whose movements were similar to those of the Blackfish 
(Globiocephahs) . They were likewise of the same jet black color; but the dorsal 
fin was narrower, very pointed, and placed about one- fourth of the animal's length 
from its flukes. So fur as our observations go, the Puget Sound Grampuses are 
not numerous, and they are but rarely seen about the inland waters of "Washington 
Territory, which is the only place where we have met with them. 
SECTION XIII.— THE SAN DIEGO BAY GRAMPUS. 
Of this individual Cetacean, our observations have been confined exclusively to 
those frequenting the Bay of San Diego, where the animals are seen passing into 
and out of the estuaries connecting with the main lagoon. The distinguishing 
mark peculiar to this species, is its broad, triangular, and prominent dorsal fin, 
which is placed about midway between its extremities, and is slightly falcated. 
Nothing is definitely known about the animal's dimensions. As seen when undu- 
lating over the water, it exhibits the ordinary movements of the Cowfish. Its 
length may be approximated at twelve or fifteen feet ; otherwise its proportions of 
body are nearly the same as those of the Orca ater. Its color is black above, with 
more or less white beneath. It feeds on fish, for which purpose it ascends the 
estuaries. Repeated attempts have been made to secure one of the creatures, and 
during the chase they have been approached so near as to allow good views of 
their proportions upon the surface of the water ; but their shyness and rapid 
movements have thus far precluded every effort to capture them. 
Mabine Mammals.— 14. 
