SYNOPSIS OF THE . 



very small dorsal eminence instead of fin ; yellowish white ; 

 twelve to eighteen feet long. 



Witfisch oder Weissfischj Anderson, Crantz, Midler. Del- 

 phinus Albicans, Otk. Fabr. Delphinus Pinna in dorso 

 nulla, Briss. Dauphin Beluga, Bonnat. Ency. Get D. 

 Leucas, Gm. Delphinopterus Beluga, Lacep. Beluga, Shaw. 

 Huitfisch of the Danes. 



Icon. Shaw. 



Habitat. Northern Seas. 



Sub-genus IV. — Hyperoodon (Lacep.) Teeth one in 

 each jaw', sometimes none ; lower Jaw usually more volumi- 

 nous than the upper. 



917. 1. Z>. iyy^eroo(7o« (Dolphin of Honfleur.) Head con- 

 vex, beak round and flatted ; no teeth in either jaw ; palate 

 furnished with small points or false teeth; lower jaw very 

 thick in proportion to upper; orifice of spiracles crescented, 

 points turning back ; dorsal fin near the middle of the body ; 

 leaden gray above, whitish below ; twenty-three feet long. 



Dauphin Butskopf. Delphinus Butskopf, Bonnat. Baus- 

 sard desc. des deux cet. Journal des Phys. Hyperoodon 

 Butskopf, Lacep. 



Icon. Journ. de Phys. March, 1789, pi. I et2. 



To this Sub-genus are referred D. Anarnak, D. Chem- 

 nitzianus, D. Hunteri, D. Edentvlus, D. Epiodon. None 

 sufiiciently authenticated to be considered as specifically 

 different from D. Hyperoodon. 



Genus II. — Monodon, L. 



Incisors ^:-J- ; canines §:^; molars ^:§= 2. One or two 

 large tusks implanted in the incisive bone, straight, long, 

 and pointed, in the direction of the axis of the body ; 

 general form like the Dolphin's ; orifice of spiracles united 



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