ArT. 16, TWO SQUALODONTS FROM MARYLAND—KELLOGG. 29 
pelagius. The tooth mentioned above was clearly designated as the 
type by Cope, and since it was originally described as a species of the 
genus Squalodon, it invalidates any subsequent use of this specific 
name in this genus. There are four teeth, however, labeled with this 
name, from Ashley River, South Carolina, in the Academy of Natural 
Sciences of Philadelphia. Two of these teeth are figured by Leidy ”® 
and described under the name of Squalodon protervus. Whatever the 
determination of this last mentioned material may eventually prove 
to be, it is evident that the use of the specific name protervus in this 
sense is invalid. 
AGOROPHIUS PYGMAEUS (Miiller). 
Zeuglodon pygmaeus MULuER, J., Ueber die fossilen Reste der Zeuglodonten von 
Nordamerica, Berlin, p. 29, pl. 23, figs. 1, 2, 1849. 
Squalodon pygmaeus Leipy, J., Journ. Acad. Nat. Sci. Philadelphia, ser 2, vol. 7, 
p. 420, pl. 29, figs. 7, 8, 1869. 
Type specumen.—Consists of an imperfect skull and one serrate 
molar tooth. Formerly in the private collection of F.S. Holmes and 
now appears to have been lost. 
Type locality—Kocene marl at Greer’s Landing on the Ashley 
River, about 10 miles from Charleston, South Carolina. These beds 
of soft limestone along the Ashley River are known as the Ashley- 
Cooper marl, and are referable to the Jackson group according to 
Willis.°° Upper Eocene. 
Subsequent allocation.—The original publication on the discovery 
of this specimen*! attracted the attention of J. Miller, who was at 
that time engaged in a revision of the zeuglodonts, and a description 
and figure of the specimen appeared in his work under the name of 
Zeuglodon pygmaeus. During the preceding year, Tuomey,” State 
geologist of South Carolina, published some additional information 
regarding this cetacean. He remarked: ; 
The first intimation of this strange cetacean, on the Ashley, I owe to Mr. F.S. 
Holmes, who sent me a portion of the upper jaw, with one perfect tooth in its proper 
socket; and although it differed in size and in other respects from all the specimens 
hitherto discovered, its Zeuglodon characteristics were quite evident, and, with the 
rest of the skull (afterwards found by Prof. L. R. Gibbes), added very materially to 
our knowledge of the true affinities of this cetacean. Other bones, and among them 
a perfect scapula and another skull, have since been found by Mr. Holmes. 
In 1895, Cope* proposed a new generic name, Agorophius, for this 
specimen and concluded that it was generically distinct from Squalo- 
don and Dorudon. Heremarks: ‘The form of the skull in this genus 
2 Leidy, J., Journ. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 7, pl. 28, figs. 18 and 19. 
30 Willis, B., Prof. Paper No. 71, U.S. Geol. Sury., Washington, D. C., p. 739, 1912. 
31 Tuomey, M., Proc. Acad. Nat. Sci. Philadelphia, vol. 3, pp. 151-153, 1847; Journ. Acad. Nat. Sci. 
Philadelphia, vol. 1, pp. 16-17, 1847. 
32 Tuomey, M., Report of the geology of South Carolina, Columbia, p. 166, 1848. 
33 Cope, E. D., Proc. Amer. Philos. Soc., vol. 34, No. 147, p. 139, 1895. 
60466—23—Proe.N.M.vol.62 38 
