62 CETACEA. 
Monodon (spurius), sp. O. Fab. ee 3 
Heterodon (sp.), Desmarest, Mam. . ( | 
Delphinus (sp.), Desmarest, Mam. 
3.2? Diodypus, Rafin. Anal. Nat. 60,1815; no type nor char, 
Cervical vertebrae united, all anchylosed together. Mus. Hu ! 
Graves, Edin. Phil. Journ. 1830, 59. 
According to Voight and Wesmael, the ends of the blowers, 
in other dolphins, pomt forward. Dale, Baussard and Doumet 
describe them as pomting backwards; Desmarest and others as- 
sumed the latter as a generic character. 4 
This genus is at once known from Delphinorhynchus, withow 
examining the skull, by the head being more convex and rounde 
in front, and the two teeth bemg situated in the front end of th 
lower jaw, while in that genus they are in the middle of each side. 
Lacepéde called the genus Hyperoodon, and Ilhger Uranodon, 
because of the teeth on the palate described by Baussard. The 
have not been observed on other specimens; and Illiger, in 
his generic character, by mistake says the two teeth are in the 
upper jaw (Gen. 143); and Professor Eschricht, in his unpub- 
lished paper, has proposed the name of Chenocetus, mstead 
Hyperoodon, which is founded on an erroneous description, 4 
the name Goose-whale, or its translation, is applied to this ¢ 
mal by the inhabitants of most part of the seas where it inhabiti 
and Dr. Jacob calls it Cetodiodon. 4 
Professor Eschricht, in the Danish Transactions, has given 
account of the history of the genus, and of its anatomy, im- 
cluding some admirable details of its bram. He also show 
that there are numerous small teeth in the jaws (see fig. af 
pp- 331-335), besides the two large teeth in front.—Danish a d. 
Trans. xi. 327, 331, 332, 334, 335. 
O. Fabricius described a whale under the name of Monodo 
spurius, called by the Greenlanders Anarnak, as having two sms Il 
conical, slightly-curved, blunt teeth prominent in front of th 
upper jaw; the lower jaw toothless. M. Cuvier (Oss. Foss.) re 
gards it as a Hyperoodon, and he only believed in the existence 
of one species of the genus. M. F. Cuvier, who misunderstoos 
the description of Chemnitz with respect to the teeth of Balen 
_ rostrata, is inclined to unite it to that species, with which j 
agrees in being all black, but observes they differ greatly im 
size.—F. Cuv. Cetac. 226. It cannot be the young Narwhal, fc 
the back is finned. q 
Professor Eschricht regards the Anarnac or Monodon spurius, 
OQ. Fab., as the common Hyperoodon, in which Fabricius mistoo 
the lower for the upper jaw. The fat of Hyperoodon is purg 
tive, as Fabricius describes to be the peculiarity of the Asse 1c 
