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Diagnostic Description

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Melanotaenia garylangei is distinguished by the following combination of characters: dorsal fin rays IV-VI + I,12-15; anal fin rays I,16-20; in life, adult males have a blue nape and an olive green upper side, a midlateral blackish stripe covering two rows of scales of which the line above the upper scale row is regularly broken and the scales are of greenish, 1-2 red stripes above and below the mid-lateral stripe; second dorsal, pectoral, anal and middle portion of caudal fin red; and dorsal and anal fins elongated in males (Ref. 113073).
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Armi G. Torres
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Morphology

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Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 12 - 15; Analspines: 1; Analsoft rays: 16 - 20
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Armi G. Torres
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Biology

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Found in small rainforest creeks. The collection sites have clear and tannin-stained water. The typical habitats were composed of muddy substrate, with only one site consisting of submerged aquatic vegetation (Barclaya sp.) . Undisturbed habitats were partially covered by forest canopy, whereas disturbed sites were exposed to sunlight. Occurs together with Melanotaenia goldiei, Melanotaenia rubrostriata, Pseudomugil sp., and Ambassis agrammus. Prefers shallow (10-20 cm depth) areas usually covered with floating grass. Attains sexual maturity at approximately 2.5 cm SL and age of 6 months based on aquarium observations (Ref. 113073).
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cc-by-nc
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FishBase
Recorder
Armi G. Torres
original
visit source
partner site
Fishbase