52 
DOBtILE. 
of its food and breeding. He says that it frequents the clearer 
waters of the lakes and streams of that river, where there is 
a bottom of stones or gravel; and it feeds on worms and 
vegetables. The roe is of a greenish tinge, and is shed copiously 
in April and May. The flesh is white, soft, and full of the 
small bones common to this class of fishes. 
The Dobule is strictly a fish of the north of Europe; and 
Nilsson says it is in Sweden confined to the streams and lakes 
in the middle and north of the province of Wermerland; and 
that it should travel to Britain is not the least remarkable portion 
of its history. 
Mr. Yarrell himself took this example while engaged on the 
Thames in fishing for Whitebait with a net; and as it is not 
unlikely it may occur again, perhaps with some difference of 
appearance as regards age and growth, to enable observers to 
be certain of the species, we give descriptions as they are con- 
tained in the works of the writers we have mentioned; as also 
that of Mr. Yarrell in the fourteenth volume of the Linnean 
Transactions, to which are added some notes obtained from 
examination of what we have believed to be specimens of the 
same procured from the continent; but the latter are produced 
with the expression of some doubt. It is proper to add that 
the reviewer of Mr. Yai'rcll’s work, in the first volume of the 
“Magazine of Zoology and Botany,” on the authority of Dr. 
Parnell, informs us that this fish has also been caught in the 
Cumberland rivers; but no further particulars are given. 
Nilsson describes this fish as measuring seven or eight inches, 
which answers to the length of the figure given by Ekstrom. 
The form lengthened, the height and length of the head one 
fifth of that of the body to the middle of the tail fin; the 
outline little arched, and not much compressed at the side. 
Nose prominent and blunt; mouth small. Lateral line a little 
bent, with about fifty mucous spores. Number of scales across 
the middle of the body twelve; the lateral line on the eighth 
scale. Anal fin with eleven rays, of which eight are branched. 
The colour brown above, silvery on the sides, white below. 
Dorsal fin the colour of the back; lower fins white, with a 
tinse of red, and sometimes all red. 
^.’he description of Dr. Reisinger is, that it measures eleven 
or twelve inches, with a weight from one to two pounds; the 
