212 
JOURNAL OF MAMMALOGY 
A NEW PINNIPED FROM THE UPPER PLIOCENE OF 
CALIFORNIA 
By Remington Kellogg 
During the month of December, 1920, the writer, in company with 
Mr. E. L. Furlong, spent several days examining California collections 
of marine mammals. This work was undertaken under the auspices 
of the Carnegie Institution of Washington and under the direction of 
Dr. John C. Merriam. Although search for pinniped remains was not 
the principal object of this trip, a number of fossils were located, among 
which the most important were contained in the collection of Stan- 
ford University. These specimens were generously placed at the 
writer ^s disposal for study and description by Dr. David Starr Jordan 
and by Prof. J. P. Smith. 
The material figured and described in the present paper was dis- 
covered by Mr. Robert Anderson in a Phocene formation of southern 
California and belongs to the Geological Department of Stanford 
University. Dr. Joseph Grinnell, director of the Museum of Verte- 
brate Zoology, and Mr. Gerrit S. Miller, Jr., curator of mammals 
of the United States National Museum, have greatly faciUtated the 
writer’s studies on fossil Pinnipedia by the loan of skeletons of the 
hving pinnipeds for comparison. These fossil bones have been com- 
pared with a number of the living pinnipeds besides Eumetopias, 
notably with Zalophus, Ar otocephalus, Callorhinus, Odobenus, Monaohus, 
and Mirounga, as well as with other fossil genera, the descriptions of 
which are now in press. In this paper comparisons are made with 
Eumetopias juhata (No. 8821, Mus. Vert. Zook), Zalophus calif ornious 
(No. 16296, U. S. Nat. Mus.), Odobenus divergens (No. 21331, U. S. 
Nat. Mus.), and Mirounga angustirostris (No. 15270, U. S. Nat. Mus.). 
The illustrations for this paper were made by Mrs. Frieda Abernathy. 
Fossil remains of the family Otariidse are very little known. There 
are several extinct otarids on record, but many of these are based on 
very scanty and dubious material. This statement is especially true of 
teeth of doubtful reference found in France. In North America no 
evidence for Tertiary otarids on the Atlantic Coast has been recorded. 
True, in 1905, described Pontolis magnus from beds belonging to the 
Empire formation at Coos Bay, Oregon, based on the occipital and 
basicranial region of the skull. No Hmb bones were described by True^ 
1 True, F. W., Smithsonian Misc. Coll. (Quart. Issue), vol. 48, pt. 1, no. 1577, 
p. 48, Washington, D. C., 1905; Prof. Paper No. 59, U. S. Geol. Surv., Dept. 
Interior, pp. 144-147, pis. 21-23, Washington, D. C., 1909. 
