Odessa barb
species of fish
The Odessa barb (Pethia padamya) is a species of cyprinid fish known from Central Myanmar, where it is known to occur in an artificial pond above the Anisakan Falls and also from the lower Chindwin River. For many years it has been known to the aquarium hobby, where it has frequently been confused with the less colourful ticto barb, but it was only described scientifically in 2008.
Description
The Odessa barb is a small fish with a laterally compressed body. Among 28 adult specimens (12 males, 16 females) measured in its species description, both sexes were up to about 4.6 centimetres (1.8 in) SL. Hobby aquarist profiles have noted a length of 7 centimetres (2.8 in) SL. This species exhibits sexual dimorphism, which allows for easy identification of the sexes.
The male has a beige to light brown background color, but is noted for the bright red stripe running the length of the body. The male also has red irises with a narrow black streak through the middle of the eye. The dorsal, anal, and pelvic fins of the male are yellowish green in color, with contrasting black spots. When in spawning condition, the body coloration can intensify with the background becoming darker and the red intensifying on the lateral stripe.
The female is plainly colored, with a light beige body and a reflecting silvery sheen on the scales. The fins of the female are a light yellowish green; however, only the dorsal fin contains the contrasting black spots, which are fainter than those of the male.
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