28 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
Type, No. 15749, Museum of Comparative Zoology, Cambridge, 
Massachusetts. 
Type locality —Not known. The foraminifera in the surrounding 
matrix indicate that it was probably derived from the Jackson for- 
mation of the Upper Kocene of the southeastern United States, 
possibly Alabama. There is a possibility, however, that this may 
be the second skull found by F. S. Holmes*? in the Ashley River 
region of South Carolina. Upper Eocene. 
Subsequent allocation.—The long forward sloping nasal passages, the 
elongate flattened nasals, parietals forming part of the vertex, as well 
as other features, led Allen to place this form in the family Agoro- 
phiidae. Teeth, alone, are lacking to fully corroborate this allocation. 
So far as can be ascertained from a study of the figures and de- 
scription of Archaeodelphis patrius and those of True * for Agorophius 
pygmaeus it appears that Allen was justified in stating that “ its 
relationship is perhaps nearer to Agorophius”’ than to Prosqualodon. 
SQUALODON ? PELAGIUS Leidy. 
Squalodon pelagius Lewy, J., Journ. Acad, Nat. Sci. Philadelphia, ser. 2, vol. 7, 
p. 420, pl. 29, fig. 1, 1869. 
Type specimen.—Consists of a fragment of the left maxilla with one 
double-rooted molar in situ. Type in the Academy of Natural 
Sciences at Philadelphia. 
Type locality —From Ashley River, near Charleston, South Caro- 
lina. Edisto marl or Upper Miocene. 
Subsequent allocation.—The relationships of this specimen are very 
uncertain according to Leidy and he expressed some doubt as to 
whether it should be referred to a squalodont. 
CYNORCA PROTERVA Cope. 
Squalodon protervus Corez, E. D., Proc. Acad. Nat. Sci. Philadelphia [vol. 19], p. 
151, 1867. 
Type specimen.—Consists of a single canine tooth. Type in the 
Academy of Natural Sciences at Philadelphia. 
Type locality.—Not stated in the original description. It is given 
as Charles County, Maryland, by Leidy.”*> Calvert or Upper Miocene. 
Subsequent allocation.—Cope* thought the peculiar appearance of 
this tooth warranted the establishment of a new genus, Cynorca, for 
it. Leidy?’ was of the opinion that the type tooth of this supposed 
squalodont belonged to some peccary, and that the two other teeth” 
mentioned by Cope might be the same as that described as Squalodon 
23Tuomey, M., Report of the Geology of South Carolina, Columbia, p. 166, 1848. 
2% True, F. W., Remarks on the type of the fossil cetacean Agorophius pygmaeus (Miller), Publ. 1694, 
Smithsonian Institution, p. 7, 1907. 
2% Leidy, J., Journ. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 7, p. 385, 1869. 
26 Cope, E. D., Proc. Acad. Nat. Sci. Philadelphia, [vol. 19], p. 152. 
7 Leidy, J., Journ. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 7, pp. 384-385. 
%Leidy, J., Idem., p. 423. 
