art. 16, TWO SQUALODONTS FROM MARYLAND—KELLOGG. 7 
are wanting) and a fragment of a mandible, both with serrate cheek 
teeth in situ. The mandible possessed ten, and possibly more, ser- 
rate cheek teeth. Type in the ‘‘ Museo Geologico dell’Istituto supe- 
riore di Firenze,’’ Italy. 
Type locality—From white limestone [‘‘caleare di Ragusa’’] of 
Scicli, near Modica, Sicily. Langhiano superiore, or Lower Miocene. 
Subsequent allocation.—The species is quoted by Dal Piaz and is 
credited to Forsyth-Major without reference or date. This may be 
a manuscript name of Forsyth-Major, for the name stands: ‘ Squa- 
lodon assenzae Major (in sched.).”’ 
This form apparently is very closely related to Neosqualodon gas- 
taldi. 
SQUALODON ATLANTICUS (Leidy). 
Macrophoca alantica Leipy, J., Proc. Acad. Nat. Sci. Philadelphia [vol. 8], pp. 
220-221, 1856. 
Squalodon atlanticus Lerpy, J., Journ. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 
7, pp. 416-418, pl. 28, figs. 4-7, 1869. 
Type specimen.—Consists of three molar teeth. Type Nos. 11217, 
11218, 11219, Academy of Natural Sciences of Philadelphia. 
Type locality —Miocene marl of Shiloh, Cumberland County, New 
Jersey. Upper Miocene. 
Subsequent allocation.—This species was placed in the genus Squa- 
lodon by Cope.'® More recently Allen’ refers this species to the genus 
Basilosaurus, but gives no reasons. The appearance of these teeth is 
so unlike the zeuglodonts and resembles so closely the type of teeth 
that are now regarded as pertaining to the squalodonts, that it is 
difficult to see on what grounds such an allocation would be based. 
PROSQUALODON AUSTRALIS Lydekker. 
Prosqualodon australis LyDEKKER, R., Annales del Museo de La Plata, Palaeont. 
Argentina, vol. 2, for 1893, pp. 8-10, pl. 4, figs. 1, la, 1b. April, 1894. 
Type specumen.—Consists of a nearly complete skull with teeth in 
situ. Lydekker” states that the roots of the molariform teeth have 
coalesced, but are defined by a deep groove. He further states that 
in the structure of the nasals the genus Prosqualodon is more general- 
ized than Squalodon, while the characters presented by the teeth 
show it to be more specialized. Type in the ‘‘Museo de La Plata,” 
Argentine Republic. 
Type locality.—A marine deposit on the coast in the Territory of 
Chubut, Patagonia, Argentine Republic. The locality was stated 
more precisely by Ameghino'* as the Patagonian formation at Port 
Madryn on Bahia Nueva, Chubut Territory. The Tertiary formation 
M4 Dal Piaz, G., Abhandl. Schweiz. Paliont. Ges. Geneve, vol. 31, p. 3, 1904. 
Cope, E. D., Proc. Acad. Nat. Sci. Philadelphia [vol. 19], pp. 132, 153-154, 1867. 
16 Allen, G. M., Mem. Boston Soc. Nat. Hist., vol. 8. No. 2, p. 282, 1916. 
1 Lydekker, R., Proc. Zool. Soc. London, p. 921, 1899. 
18 Ameghino, F., Bol. Inst. Geogr. Argentina, vol. 17, p. 99, 1896. 
