SPECIMENS 



OF 



C E T A C E A. 



Suborder 1. MYSTACOCETl. (M.C.) 



(Whalebone, Baleen, or True Whales.) 



Family I. BALiENIDiE. 



(Right Whales.) 



Head large relatively to body; skull almost symmetrical, 

 strongly arched ; mouth capacious, baleen narrow ; 

 skin of throat and chest not plicated ; cervical 

 vertebrae fused, distinct lachrymal bone, mandible 

 without proper coronoid process ; ribs articulate with 

 transverse processes and not with bodies of vertebrae. 



I. BALiENA. (B.) 



Balaena, Limiceus, Syst. Nat., 1766. 



No dorsal fin ; length 50 to 60 feet ; pentadactylous. 

 Scapula high, with distinct coracoid and acromion. 



(1) Bal^na mysticetus. (B. m.) 



(Greenland or Arctic Right Whale, Bowhead.) 



Balsena mysticetus, Linnoeus. 



Colour black, white throat ; thirteen pairs of ribs ; 

 baleen narrow, 11 feet or more in length. 



1. Skeleton, articulated, young; length, 24 feet 5 inches. 



Length of skull in straight line, 7 feet 10 inches. 

 Vertebral formula C^D^gLCdgg — 56. See Plate I. 

 Greenland Seas. Goodsir Collection. 



2. Skull of an older specimen without mandible ; length over 



curve of head, 13 feet 4 inches ; length in straight 

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