Overview

Distribution

South America: headwaters of the Tietê River basin in Brazil.
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Headwaters of Tietê River basin, Brazil.
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Physical Description

Morphology

Dorsal soft rays (total): 11; Analsoft rays: 12 - 13; Vertebrae: 35 - 36
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Size

Max. size

6.1 cm SL (male/unsexed; (Ref. 32783)); 6.08 cm SL (female)
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Diagnostic Description

The eyes of S. papilliferus (18.4-26.0% HL) are the smallest of the four species of Spintherobolus; the caudal peduncle length is the longest, being 23.8-24.6% SL in males and 21.3-27.0% SL in females; the anal-fin rays of adult males are not expanded in a sagittal plane; segments of anal-fin rays of adult males are not fused; an anterior extension of the proximal end of the lepidotrichia of the anal-fin rays of males is absent.
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Ecology

Habitat

Environment

benthopelagic; freshwater
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Conservation

Threats

Not Evaluated
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