PILOT-WHALE, 



457 



given a full account of the anatomy of this species in the 

 '^ Transactions of the Zoological Society " (v. VIII. p. 235). 

 The Pilot- Whale attains a length of sixteen to twenty 

 feet, or even, it is said, of twenty-four feet. The 

 following are some of the dimensions of a female killed 

 in the Firth of Forth in April 18G7, which we had the 

 pleasure of personally examining : — 



Total length .... 



From nose to eye .... 



„ „ angle of gape . 



,, ,, dorsal-fin . 

 Length of flipper, along anterioi* edge 

 Greatest breadth of ditto 

 Breadth of tail-tin 



In 1861, Dr. Gray described a skull received from 

 Bridport as specifically distinct, under the name of 

 G. incrassatus, and he has subsequently made it the type 

 of his genus Sphcerocephalus (P. Z. S., 1861', p. 244). 

 This skull, which is now in the British Museum, is, 

 however, so much water-worn that it seems unsafe to 

 consider it distinct until other similar specimens have 

 been procured. 



■^**!-*'=^ ^, 



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3 N 



