For 2013 they issued a series of coins in different denominations with wildlife on them, and the 5 Kopek coin has the bat. Of interest, the 1 Kopek coin has the pygmy shrew on it, and there are very few coins with shrews on them as not very high up the list of charismatic wildlife.
The coin itself is about the size and weight of a US nickel (21.8mm diameter 5.5g weight) and is composed of a copper-coated steel.
But close inspection of the face show nice ears, nose, and an accurate open mouth of an echolocating bat. Fact of the day is that many insectivorous bats echolocate through the mouth, and have a wide gap between the front upper teeth to allow for the sound to travel through unimpeded.