10 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
Type locality.—‘‘ Grés marin ?”’ of Léognan, Department of Gironde, 
France. Mayencian or Lowermost Middle Miocene. 
Subsequent allocation.—Von Meyer™ was the first to suggest that 
this mandible represents a squalodont, for in his remarks he says that 
Delphinus (Champsodelphis) bordae Gervais is not a dolphin but is 
referable to Squalodon grateloupu [= Squalodon typicus, new species]. 
In 1900, Abel”? mentioned the specimen and discussed it in connec- 
tion with Champsodelphis macrognathus Brandt. More recently, the 
same writer*? discussed the dental formula of this specimen in com- 
parison with others, and his account gives one the impression that 
he considered it a valid species. 
ZEUGLODON BREVICUSPIDATUS (Tate MS.) Hall. 
See Parasqualodon wilkinsoni (McCoy). 
STEREODELPHIS BREVIDENS (Dubreuil and Gervais). 
Delphinus brevidens DuBREUIL and Gervais, P., Comptes Rendus Acad. Sci. 
Paris, vol. 28, No. 4, pp. 135-136, January-June, 1849. 
Stereodelphis brevidens Gervais, P., Zool. et Paléont. frangaises, Paris, ed. 1, 
p. 152, pl. 9, figs.4-6, 1848-1852; ed. 2, pp. 310-311; Atlas, vol. 5, pl. 9, figs. 4-6, 
1859. 
Type specimen.—Consists of a fragment of a lower jaw with alve- 
olae, including part of the coronoid process and a portion of the hori- 
zontalramus. Two single-rooted and blunt-crowned teeth were also 
referred to this species. Type in the ‘‘Museum National d’ Histoire 
Naturelle’ at Paris, France. 
Type locality.—F ound in a block of marine limestone that was being 
used in the construction of new additions to the ‘Faculte de Medi- 
cine’? at Paris. Dubreuil and Gervais stated that this stone was 
obtained from quarries in the vicinity of Castries, to the east of 
Montpellier, Department of Herault, France. Later, Gervais * pub- 
lished more explicit information, namely, ‘‘la molasse dite pierre de 
Marabel,”’ near Castries. Helvetian or Middle Miocene. 
Subsequent allocation.—A new genus Stereodelphis was proposed 
for this species by Gervais. Other writers have considered that it 
should be referred to the genus Squalodon. This species was consid- 
ered to be a synonym of Squalodon grateloupw by Van Beneden,® 
while Trouessart ** placed it in the synonymy of Squalodon bariensis. 
There is reason to believe that this fragment of the lower jaw should 
be referred to the group characterized by Eurhinodelphis. Certain 
peculiarities are brought out in the figure given by Gervais ** which 
28 Meyer, H. von, Palacontographica. Beitriige zur Naturgeschichte der Vorwelt, Cassel, vol. 6, pp. 
42.47, September, 1856. 
29 Abel, O., Denkschriften d. K. Akad. d. Wiss. math.-naturw. KI., Wien, vol. 68, p. 840, 1900. 
30 Abel, O., Mém. Mus. Roy. Hist. Nat. Belgique, Bruxelles, vol. 3, pp. 27, 33, 1905. 
31 Gervais, P., Zool. et Paléont. frang., Paris, ed. 1. vol. 1, p. 152, 1848-1852. 
82 Van Beneden, P. J., Mem. Acad. Roy. Sci. Belgique, Bruxelles, vol. 35, p. 70, 1865. 
33 Trouessart, E. L., Cat. Mamm. viv. foss., Berlin, fasc. 5, p. 1012, 1898. 
2 Van Beneden, P. J., and Gervais, P., Ostéographie des Cétacés vivants et fossiles, Paris, p. 435; 
Atlas, pl. 28, figs. 14, 14a, 1880. 
