Russian bitterling - The fish will grow in length up to 16 centimetres .
Acheilognathus elongatus - The Elongate Bitterling is a species of ray-finned fish in the Cyprinidae family.
Acheilognathus rhombeus - When spawning, the females deposit their eggs inside bivalves, where they hatch and the young remain until they can swim.
Red tabira bitterling - There are 5 subspecies in the species Acheilognathus tabira.