OKDER VI. THE CETAC'EA. 2G1 



Genus IlYrEnoODOXTF.s. Three enormous maxillary crests rise over tlic 

 cranium, and arc scnaratcd by dee|) furrows ; the horns of the crescent-j-ha|ied 

 spiracle are turned l)ack\vards. The generic name is a Greek word, wliich 

 signifies teeth in the palate, and refers to the small, unequal, and iiard points 

 wilh which the upper jaw and palate are fnrnished. The length ot' the ani- 

 mal appears to vary from twenty to forty feet. The color is l)rownish-hlack, 

 verging towards white beneath. It is a \-cry rare variety. There is but one 

 species known, the IlijperooJon Hon fJorieiisis. Ilimtcr's sj)ceimen was 

 killed in the Thames, aiiove London Bridge, ])rol)ab]y a solitary wanderer 

 from a distant ocean. The authors have su[)[ilied no information with regard 

 to its habits. 



Genus AoDOX. This genus has no baleen or teeth or rugosities on the 

 palate. There is ,i distinct a[)pearance of a ncek ; the forehead is prominent, 

 and the jaw is jirolonged in form of a sul)-evliudrical lieak in a cimtinuous 

 line with tiie head. There is but one species — ^1. Dale!, or the ''Toothless 

 "Whale of Havre." The only specimen ever seen by naturalists was stranded 

 near IIa\re in 1S2.J. It was a yoiuig animal, about fifteen feet in length. 

 The general color was gray; dark al)ove and gradually becoming wdiite 

 beneath. This also was probably a wanderer Irom its nati\e seas. 



Genus Beluga. The Beluga has an obtuse, conical, and rounded head, 

 and is distinguised from tlic Glol)ieeps I)y not having a dorsal fm ; and from 

 the Delphinapterus liy not having the prolonged snout, like a ilattened l)eak, 

 peculiar to the latter genus. 



BeliKja JBorraU.''. — The ^Vhite A\'hale. The length of this species 

 varies from twehc to twenty feet. The S[)ecimen at the .Vrjuarial Gardens, 

 in Boston, some years ago, was, we believe, about fifteen feet long. It is 

 generally of a rich cream color, but the young are marked with brownish 

 spots, and occasionally are somewhat of a blue or slaty color. Tlie pectorals 

 arc large, thick, and oval. The tail is a powerful pro[ielling instrument, and, 

 in the operation of swimming, is bent under the body, and worked in such a 

 manner that, according to Gieseekl, it impels the beluga forward with the 

 velocity of an arrow. 



The food of the species is cod, haddock, salmon, and other smaller fish of 

 this description, which it hunts with ardor, and consumes with great apparent 

 enjoyment. It is of a migratory habit, and \ isits the west coast of Green- 

 land every year, ab(jut the end of Xovembcr, where its arri\al is hailed by the 

 natives with great rejoicing, as it comes at a season when their provisions 

 fall short. It is captured with harpoons and strong nets. The nets are 

 extended across the narrow sounds between the islands, and when a shoal is 

 thus interrupted in its course to the sea, they are attacked with lances, and 

 great numbers are killed. The llcsh is like that of beeves, of a bright-red 



