123 
TWAIT SHAD. 
MAin. 
Shad, 
Olupea alosa, 
“ finta, 
Alosa fiiita, 
Willoughby; p. 3, f. 1, p. 227, but he confounds 
the two now recognised species together. 
LiNNBiius. Bloch; PI 30. Donovan ; PI. 57. 
CuviEK. Jenyns; Manual, p. 437. 
Yarrell; Br. Fishes, vol, ii, p. 208. 
This species so nearly resembles the Allis as to have been 
confounded with it until Cuvier established some definite marks 
of distinction; the chief of which are the existence of some 
teeth in both jaws of the Twait, and that it is ornamented with 
a row of rather large spots along the sides from the gdl-covers • 
whereas in the Allis there is only one spot, and sometimes 
none. In most other particulars they resemble each other 
except indeed that the Allis is a little the thickest, and the' 
iwait never reaches the size that is sometimes attained by the 
kindred species. Them habits are much alike, but the Twait 
IS known further north, and is reckoned among the fishes of 
bcandinavia. It is also mentioned by Eisso as a native of the 
Mediterranean, and in Britain, where it occurs, it is in more 
abundance than the Allis; but I have not known it to take a 
hook although I suppose it to be the species from the stomac i 
of which Dr. Fleming informs us he took three Herrings It 
enters nvers in spring, and is taken in the Severn at the same 
time with the Allis; but it is in much less esteem than that fish 
lor tlic tSrblc* 
In what I suppose to have been an example of this species 
instead of a row of large dark spots, I have noticed a scattered 
row of small spots irregularly placed on the sides. 
