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Photograph fish vouchers in collections

For the purposed of FREDIE, also material from collections is also suitable. Therefore take care to preserve your fishes in a straight position. If a fish has been preserved in a bent position or with an open mouth, remove it from the formalin, rinse it abundantly, bend it straight or close its mouth, then return it to the formalin bath; be careful to avoid inadvertently removing scales or break fins.

Gobio brevicirris

Gobio brevicirris, preserved specimen, photographed in the laboratory.