360 Mr. Burnett's Illustrations of the CetethercPf ^c. 



Order, Cetetherje, Cetethers [Ceie or Cetacea» and Mammif, Am.' 

 \ » fw P- phibia]. Whales and their allies. Limbs degenerate, re- 

 tracted greatly within the integuments ; feet unfit for walking 

 J bsJesiO Qjj lands, especially the hinder ones, which are often united 

 ,Ib98 -iO to form a flattened horizontal tail ; mammae pectoral, abj- 

 .« nomnio3 doming, or anal ; viviparous ; teeth various. 



IDIOJ 



•*l|jte;Tit&iPEDA,''L6npeds, [amphibia]. Seal, Wah-us, &c^ '^^Fd^eiJr 

 noil. tremities partially developed, the digits webbed ; hind limb$ 

 ,iJB9a ^^"^ backwards, and only used for swimming ; three sorts a ' 

 . teeth ; abdominal mammae ; body more or less hairy, 



KindSy Phocid^, Seal kind. Three sorts of teeth in both jaws. 



Trichecid^, Morse or Walrus kind, no incisors or canines ii| 

 lower jaw. 



Type, Semipeda, Semipeds. [Sirenia, Syrens or Mermaids,"] Dugongl 

 '^^^^^^■^ Manaius,Src. Fore limbs very short; digits obsolete ; nails 



on the edge of the abortive fin-like hands, hind extremities '-^ 



united to form a tail, two pectoral mammae, no spiracles, no - r^ 



,ii.. 4U j^^^ ^^ body, some little about the muzzle. j * 3 



Kind, Manatid^, Dugong kind, teeth variable, according to age. 



Type, PiNNiPEDA, Pinnipeds. [Cete, Cetaccs Ordinaires,] Dolphin 



Narwhal, Whale, <^c. Body completely pisciform, destitute 



, , ^ , . of hair, save a few short rudimentary bristles near the mouth ; 



anterior extremities degenerated to pectoral fhis, the hindei 



to a flattened horizontal tail ; anal mammae, spiracula. 



Kinds, DELPHiNiDiE, Dolphin-kind, small head, teeth ih ho(b Jajiira 



' - numerous, all of a molar type. '^ 



Narvallid;e, Narwhal-kind, small head, two teeth in uppei 

 jaw, one lengthened and tush-like. 



Physeteridje, Chacalot-kind, large head, man}^ teeth — 54. 



''>qj8oii Baljenidje, ^We-Amc?, largQ;head, no teeth. 





awiJi-ajAHW 



{jB2Y«^*f 



> 





