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an aquarium fish bred as a result of selected mutations of the goldfish (Carassius auratus). The fantail has a shorter and broader body than the goldfish; it also differs in the length and shape of its fins (the caudal fin is bifurcated and looks like a fan; some varieties have no dorsal fin) and in the size and placement of the eyes. Fantails have varied coloring: velvety black, red, yellow, variegated, white, and light blue. There are many forms of fantails: telescope fish with protruding eyes, star-gazers with protruding eyes directed upward, “aquatic eyes” with very large eyes, orandas and lionheads with growths on their heads, and pearl fish with protruding scales that look like pearls in reflected light. Fantails do not require heated water, but they must be kept in large aquariums.
REFERENCESZolotnitskii, N. F.Akvarium liubitelia, 4th ed. Moscow, 1916.
Il’in, M. N. Akvariumnoe rybolovstvo. Moscow, 1968.
M. N. IL’IN