Biotodoma cupido

Biotodoma cupido, commonly called the green-streaked eartheater or the cupid cichlid, is a species of cichlid native to the Amazon and Essequibo river basins. Its range, as the Wikipedia article gives it, takes in Bolivia, Brazil, Colombia, Guyana and Peru, and the fish is sometimes seen in the aquarium trade. The species was first described in 1840, and the article records that original description under the name Geophas cupido. It is a small fish: the largest known standard length is 11.7 cm (4.6 in), and the largest published weight is 55.32 g (1.95 oz). The entry is brief, so this description stays with those points of identity, range, trade and size, and further biology is left to later, separately sourced work.