Diapoma Pyrrhopteryx (Diapoma pyrrhopteryx) is a ray-finned fish. It inhabits freshwater waters. This species can reach a maximum total length of 5.6 cm. With a trophic level of 2.8, it is an omnivore, consuming both plant and animal matter. It is assessed as Endangered on the IUCN Red List.
Dorsal soft rays (total): 10. Very similar to Diapoma speculiferum, both species sharing the posterior elongation of opercle and subopercle. Differs from this species in having red fins in live males (vs. pale to yellowish fins in live males), longer snout, 21.3-24.5% of head length (vs. 17-21.4% in head length), and pentacuspid maxillary teeth (vs. tricuspid) . : short and / or deep.
Behavioural data for Diapoma Pyrrhopteryx is currently being reviewed.
Freshwater; benthopelagic. Subtropical South America: Rio Canoas basin or tributaries flowing into this basin that belongs to the rio Uruguay basin in Brazil.
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