Overview

Comprehensive Description

Biology

Found at altitude of 212 meters in clear water stream, running over rocky and sandy bottom, with very small pools, 20-70 cm deep (Ref. 81202). Stomach contents of two specimens include filamentous algae, fragments of arthropods and vascular plants, and organic debris (Ref. 81202).
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Distribution

Rio Almada, coastal drainage, southern Bahia, Brazil.
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South America: Rio Almada in Brazil.
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Physical Description

Morphology

Dorsal soft rays (total): 11; Analsoft rays: 21 - 22; Vertebrae: 33
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Size

Max. size

5.4 cm SL (male/unsexed; (Ref. 81202))
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Diagnostic Description

Differs from all other congeners from northeastern Brazilian drainages by having two vertically elongated humeral blotches, a conspicuous and broad dark midlateral stripe (at least on anterior half of body), body highest along vertical slightly behind midlength of pectoral fin, 31-34 lateral-line scales, and two or three teeth on premaxillary outer series. Other characters important to distinguish this species include: anal fin with 21-22 total rays and 18-19 branched rays; dorsal-fin rays ii,9; 3-6 scales on base of anterior anal-fin rays; one or two maxillary teeth; fins homogeneously darkened by chromatophores; absence of red pigmentation on body when alive (Ref. 81202).Description: Dorsal-fin rays ii,9; anal-fin rays iii,18 or 19; pectoral-fin rays i,9, 10, 11 or 12; pelvic-fin rays i,7. Scale rows between lateral line and pelvic-fin insertion 4 or 5 (Ref. 81202).
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Ecology

Habitat

Environment

benthopelagic; freshwater
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Conservation

Threats

Not Evaluated
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