(from the article `perciform`) ...mouth and characteristic courtship behaviour of anabantids; 1 species, freshwaters of India and Southeast Asia; small, 5–8 cm (2–3 in.) ... There are about 70 species of labyrinth fishes; some are commonly kept in home aquariums. The various species, once grouped together in the family ... ... Found on http://www.britannica.com/eb/a-z/a/66