16 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
Type specimen.—Consists of a somewhat damaged skull which pos- 
sesses five cheek teeth in place, all two-rooted, but only two of which 
have their serrate crowns preserved. ‘Type in the Museum Francisco- 
Carolinum at Linz, Austria. 
Type locality—Found in a deposit of marine sand in the vicinity of 
Linz, in the valley of the Danube River, upper Austria. These sands 
are now considered to be referable to the Upper Oligocene by Abel." 
Upper Aquitanian or Upper Oligocene. 
Subsequent allocation.—The genus Squalodon was established by 
Grateloup in 1840 for part of a left upper jaw with four serrate cheek 
teeth which he had obtained from the ‘‘grés marin”’ deposits of 
Leognan, Department of Gironde, France. This generic name was 
published without mention, by name of any species. A specific name 
grateloupii was first instituted in the genus Sgualodon by Von Meyer 
in 1848. 
Contrary to previously published statements, Meyer” did not base 
his Squalodon grateloupii upon the fragment of the jaw described as 
Squalodon by Grateloup.* He explicitly says that he proposes the 
name, Squalodon grateloupii for a cranial fragment from the Teritary 
sands in the vicinity of Linz which Klipstein ™ had described as the 
skull of a ‘‘Sauriers (%),’’ and Von Meyer further remarks that this 
specimen will be described shortly by Fitzinger. It was not, how- 
ever, until 1848 that Carl Ehrlich,® instead of Fitzinger, figured the 
supposed saurian skull of Klipstein. The type is still extant at Linz, 
Austria. 
As this was the first specific name to be applied in this genus it 
has been accepted as the type. However, as shown below, this skull 
from Linz does not belong to the same group of cetaceans as have 
hitherto been grouped under the name of Sqgualodon. Authors sub- 
sequent to Von Meyer, apparently, either ignored the original appli- 
cation of the specific term gratelowpii or considered that the skull 
found near Linz and the rostral fragment from Léognan were identi- 
ical. It appears that the first unquestionable application of the term 
Squalodon gratelowpii to the Léognan specimen was that of Gervais.® 
The name was also used by the same writer for a serrate cheek-tooth” 
found near Saint-Jean-de-Védas, France. | 
To further complicate matters, this skull of Klipstein’s formed in 
part the basis for Squalodon ehrlichti of Van Beneden. The latter, 
61 Abel, O., Die Stamme der Wirbeltiere, Berlin und Leipzig, p. 757, expl. for fig. 566, 1919. 
63 Meyer, H. von, Neues Jahrbuch fiir Mineralogie, Stuttgart, p. 704, 1843. 
68 Grateloup, J. P. S., Actes Soc. Linn. de Bordeaux, vol. 11 for 1839, No. 56, p. 346, 1840; Actes Acad. 
Sci. Belles-lettres et Arts de Bordeaux, p. 201, 1840. 
64 Klipstein, A. von, Archiy fiir Mineral. Geognosie, Bergbau und Hiittenkundg, vol. 16, pt. 2, pp. 
664-665, 1842. 
65 Bhrlich, C., Berichte iiber die Mittheil. von Freunden d. naturwiss. Wien, von Wilhelm 
Haidinger, vol. 4, No. 2, pp. 197-199, 4 text figs. on p. 199, 1848; Ueber die Nordéstlichen Alpen, Bericht 
iiber das Museum Francisco-Carolinum in Linz, vol. 11, p. 12, figs. a, b, c, on p. 13, 185v. 
66 Gervais, P., Zool. et Paléont. frang., Paris, ed. 1, vol. 1, p. 151, pl. 8, fig. 12, 1848-52. 
61 Gervais, P., Ann, Sci. Nat., Paris, ser. 3, vol. 5, p. 263, 1846. 
