Sleeper

Sleeper (Perccottus glehni) — fish of goloveshkovyh, representative of the genus firebrands. The body is stocky, not long length scales covered with dull, with a large head, large mouth, which is all seated with small sharp teeth in several rows, with soft spikes without fins. In the coloration of the fish is dominated by gray-green and muddy brown tones, with a few spots and stripes of irregular shape. Color is usually greyish belly. During spawning rotan is black. In general, a company is very similar to the representatives of goby fish, the main difference are the pelvic fins: paired in rotan they are close to the head and a disproportionately small, while the goby in the pelvic fins fused into one.
In Belarus, lives in shallow ponds, confined to the water system of the city of Minsk, and is widely distributed in the aquatic basin Dnipro.