816 
SCANDINAVIAN FISHES. 
in their spawning operations. The katsa (tig. 204), a 
fish trap set at the spawning-place or in the channels 
which the Bream must pass on its way thither, is a 
often caught, as we have mentioned, in ice-seines, when 
the winter- quarters of the fish have been discovered. 
In August and September the Bream is taken by ang- 
Fig. 204. Katsa , a fish trap in general use in Central Sweden, and chiefly employed in the taking of Cyprinoids. Seen obliquely from 
the side with the shore-arm to the right, and in the plan with the shore-arm turned downwards. 
better kind of tackle, the fish being thus afforded an 
opportunity of depositing their roe on the shore-arm 
of the trap. In winter great numbers of Bream are 
ling in 6 — 12 fathoms of water, the bait used being 
the common earthworm. 
(Ekstrom, Smitt.) 
A form which has long been known, but was first 
recognised in scientific nomenclature by Bloch, the 
German Letter and Yarrell’s Pomeranian Bream, has 
been explained by Siebold and other later writers as 
a hybrid between the Bream and the Roach. For the 
sake of uniformity and on the analogy of Bliccopsis, 
however, Siebold gave this form the generic name of 
Abramidopsis. The most striking character — a com- 
paratively short anal fin in conjunction with a Bream- 
like body — is common to Abramidopsis and Bliccopsis , 
and we therefore consider it most appropriate to com- 
pare this form in our diagnosis thereof with the said 
hybrids of the White Bream. 
