Unpaired fins

Related to Unpaired fins: pectoral fin, pelvic fin, heterocercal fin
(Zool.) the dorsal, caudal, and anal fins.

See also: Fin

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References in periodicals archive ?
Unpaired fins hyaline with light brown and spots bars on the basal portion of the dorsal, anal and caudal fins.
beniensis, from the rio Madeira drainage; Owiyeye is diagnosed by the absence of dermosphenotic, a derived pattern of frontal squamation, and a colour pattern of the mandibular region, and includes species from the Amazonas and Orinoco river basins; Melanorivulus is diagnosed by an apomorphic morphology of preopercle, and derived colour patterns of male postorbital region and female unpaired fins, and includes species from southern Amazonian tributaries, Parana-Paraguay river system, and Parnaiba and Sao Francisco river basins.
Unpaired fins grey with hyaline small spots on basal portion; anal fin with pale yellow subdistal stripe, and distal grey stripe.
grelli and distinguished from all other congeners in having grey to black margins in the unpaired fins in males and females.
The genus Papiliolebias can be distinguished from all other taxa of the Rivulidae by four synapomorphic conditions of the color pattern of males: unpaired fins dark blue, a white line along distal margin of anal fin, nine pelvic fin rays, and a metallic bluish green humeral blotch (Costa 1998b).
Behavior in captivity: The male initiates the courtship expanding its unpaired fins next to the female, forming with their bodies, angles of 10[degrees] or 15[degrees].
Posterior two-thirds of body with three to five blue bars, over the light-brown background, including the unpaired fins.