OF FISHES IN GENERAL. 
3S 
That between the carp and tench was produced by mix- 
ing the milt of the former with the fpawn of the latter 5 
the offspring, which was examined by Mr. Pennant, 
bore a greater refemblance to the male than the female 
parent *. 
It is remarkable, that fo few fpecies of this clafs of 
the animal kingdom have been tranflated from their pri- 
mitive haunts, and made fubfervient to man by domef- 
tication. Only three kinds have been tranfported from 
foreign parts into Britain ; the carp, the tench, and the 
goldftfli. Double that number are domefticated with 
fuccefs upon the continent ; but even this, in all proba- 
bility, is but few to what might eafily be rendered fub- 
ferviect to the fame purpofe, by the induftry of man. 
There can at leatt be entertained no doubt that thofe 
domefticated upon the continent would thrive equally in 
Britain. 
The caprinus corufius is found indigenous in many of 
the rivers in England , where it is called, the rudd- It 
is reckoned a fuperior ftih to the carp in many refpcffs, 
yet it has never been domefticated in its native country* 
though reared with great advantage in the fifti ponds of 
Sweden. The cobctus fofiilis is a fifn unknown in this 
country; but is domefticated, with profit, in the ponds 
at Stockholm, and might, with equal propriety, be tranf- 
lated into thofe of Scotland. In the fame manner, the 
cobetus barbatula, whichgwas introduced into Sweden by 
Frederick I. might be made an inhabitant of our artifi- 
cial ponds. The falmo tymalis of Lenmeus, known in 
England by t he name of grayiin, is one of the bell fillies 
both for fport and the table, and might eafily be tranf- 
ported here from the ftreams of Derhyjlire , its native 
refidence. 
* rue Blit. Zcol. Vol, III. clafs Iv. p. 356. 
