CATALOGUE OF THE CETACEA. 

 Order OETE. 



Suborder Denticete. 



Superfamily DELPHINOIDEA. 



Family Delphinid^. 



Subfamily Delphinapteein^e. 



Genus Delphinapterus, Lac. 



Delphinapterus, Lacepede, Lilljeborg, Gill, 95. 

 Beluga, Gray, 1871, p. 94. Auctorum. 



Delphinapterus eatodon. PI. xviii, fig. 1. 



Beluga, of Seammon, Proc. Phil. Acad. 1869, p. 57. 



Beluga calodon, Gray, 1866, jj. .307, fig. 61; 1871, p. 94. 



Physeler calodon, Linn., S. N. 107. 



JDelphinus leucas, Gmelin, S. N. 1232. 



Delphinapterus beluga, Lacepede, Get. 213, 1804. 

 Arctic Seas, Bering Sea, Ochotsk, Japan? 



Pure white. Twelve to sixteen feet long. Skulls in B. M. Three skulls from Norton Sound, 

 Ball, Coll. S. I. Doctor Gray, having examined skulls collected by Captain Kellett, K. N., from 

 Benng Strait, unites the beluga of the western seas with that of the north of Europe. The teeth 

 in specimens (80 or 90 in number) examined by me, in Norton Sound, Bering Sea, varied from 

 I to f J ; often being unequal in number on opposite sides. 



Genus Monodon, Linn, 

 Monodon monooeros. 



Monodon monoceros, Linn. Faun. Suec. 2, 16; S. N. i, 105. 

 Narwhal. 



Arctic Seas. 



Specimens are sometimes brought overland, across eastern Siberia, by the natives, and sold to 

 traders in the Ochotsk Sea 



Subfamily DEiPiiiyiN-E, Gill, p. 95. 



Genus Delphinus, Gray. 

 Delphinus, Gray, 1871, p. 67. 



Delphinus Bairdii. PI. xix, fig. 1. 



n. Bairdii, Dal. Prel. Descr. Proc. Cal. Acad. Sci. v, Jan. 1873. 



Back, posterior sides, fins and flukes, black. Anterior sides gray, with two uan-ow lateral 

 white stripes. A white, lanceolate, belly- patch. Full descriiDtions of the colors and measurements 



