501 



SMALL CACHALOT. 



Physeter Catodon. P. dorso impinni, Jistuta in rostro, JJn, 

 Syst Nat. p. 107. Artedi. Gen. 78. Syn. 108. 



Cachalot with finless back, and spiracle on the snout. 



Cetus minor bipinnis, fistula in rostro. Briss. Regn, Anim, 

 p. 361. n. 4. 



Round-headed Cachalot, Pennant Brit. ZooL ^. p, ^6. 



This species is of far inferior size to the for- 

 mer, measuring about twenty-five feet in length. 

 In its general structure it is allied to the preced- 

 ing, but has a smaller mouth in proportion, and 

 is without any visible protuberance on the back. 

 It is found in the northern seas. 



I must here observe that some of the species 

 of Cachalot seem still but obscurely known, and 

 there is a degree of confusion prevailing with re- 

 spect to the synonyms of authors ; the Physeter 

 Catodon of Fabricius being a different species from 

 this, viz. the P. Tursio of the Gmelinian edition 

 of the Systema Naturae. 



V. II. p. II. 



33 



