VOL. XL.] PHILOSOPHICAL TRANSACTIONS. l6l 



side to him a narhwal, that had stuck, tliis tooth into the whale's belly, up to 

 its mouth, and had sucked the blood and humours. 



Fig. 1, pi. 6, represents the unicorn fish. J, Shows a semilunar hole, 

 through which the fish cast out water and blood, on dying; 2, a small rising 

 on the middle of the back, and fleshy as the fins; 3, the mouth, very little, 

 without teeth in the upper jaw, except this dens prominens, or tusk; which 

 has by some been taken for a horn ; and no lower jaw was found ; 4, the eye, 

 very small; 5, the fin on the right side, which, as well as the opposite, is fleshy; 

 6, the tail, fleshy, like the fins, which, taken according to its width, is not 

 vertical, but horizontal; 7, the prominent tooth or tusk, generally taken for 

 a horn. 



The length of this narhwal, from N° 3 to 6, was 17 feet Q inches; the 

 tooth 6 feet 3 inches; the greatest thickness, measured round, was 14 feet; 

 the skin was smooth, without scales, like that of an eel, and was white, marked 

 with blackish spots. 



A Description of the same Narhwal, communicated by John Henry Hampe, M.D. 



F. R. S. N° 447, p. 149. 



In a creek, called the Beluhmer Wadt, belonging to the Bailiwick of New- 

 haus, in the duchy of Bremen, has been caught alive, an unknown fish of a 

 large size, 18 to 20 feet in length, and 4 in diameter. He has on the fore part 

 of the head, just above the mouth, which is very small, a horn 6 feet long, 

 white like ivory, and curiously twisted. The body is white, sprinkled with 

 black spots, and smooth like an eel. The head is, in comparison of the body 

 very small, about 16 inches in length, and the same in diameter. The eyes 

 are also small, about the size of a sixpence. On the upper part of the head, 

 is a hole about 3 inches in diameter, out of which probably he spouts water, 

 like the whales. On each side of the neck are placed two black fins, one above 

 another, and at a small distance from each other. They are half an inch in 

 thickness, of one hand's breadth, and 2 feet in length, round on the fore part, 

 all fleshy, and of a liver- colour. 



Of a Water Insect,* not hitherto described. By M. Klein, F. R. S. N° 447, 



p. 150. From the Latin. 



A friend of M. Klein's presented him with a water insect, found at Uder- 

 wanga in East Prussia, among fresh water crabs, and utterly unknown to the 

 crab fishers. From the great number of its feet, and surprising facility of 



• The insect here described is the monoculus apvs of Linnaeus 

 VOL. VHI. y 



