486 ACCOUNT OF THE AllCTIC REGIONS. 



of the belly glossy- white ; and of the grooves of the 

 plica? according to IMrs Traill, who saw it on the 

 beach in Scalpa Bay, a sort of flesh-colour. 



The Rostrata is said to inhabit, principally, the 

 Norwegian Seas, and to grow to the length of 25 

 feet *. One of the species was killed near Spitz- 

 bergen, in the year 1813, some of the whalebone 

 of which I now have in my possession. It is thin, 

 fibrous, of a yellowish white colour, and semi-trans- 

 parent, almost like lantern-horns. It is curved like 

 a scymeter ; and fringed with white hair on the con- 

 vex edge and point. Its length is 9 inches ; great- 

 est breadth 21. 



Mono DON JfoMoceroj (Linne:) — NarxcalyOX Unicorn oi 

 the Whalers. 



La Cepede notices three species of narwals ; I 

 have seen but one; and, perhaps, the other species are 

 only imaginary, for the animal varies in appearance. 



This animal, when full grown, is from 13 to 16 

 feet in length, exclusive of the tusk, and in cir- 

 cumference (two feet behind the fins, where it is 

 thickest,) 8 to 9 feet. 



The form of the head, with the part of the body 

 before the fins, is paraholoidal, of the middle of the 

 body nearly cylindrical, of the hinder part, to with- 



* La Cepede states the length at 8 or 9 metres^ which is 

 26 to 29 feet. 



