Australoheros ribeirae Ottoni, Oyakawa & Costa, 2008

Family:  Cichlidae (Cichlids), subfamily: Cichlinae
Max. size:  7.55 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: endemic to rio Ribeira do Iguape basin in Brazil.
Diagnosis:  Dorsal spines (total): 16-16; Dorsal soft rays (total): 9-10; Anal spines: 6-7; Anal soft rays: 8-8; Vertebrae: 26-26. Distinguished from all congeners by the combination of the following characters: dorsal fin with 9-10 rays; anal fin with 6-7 spines and 8 rays; precaudal vertebrae 14; caudal vertebrae 12; total vertebrae 26; longitudinal series scales 24-26; upper lateral line series scales 16-18; head depth 95.4-98.9% HL; last dorsal-fin spine length 16.0-16.8% SL; body depth 47.4-51.3% SL; pelvic fin length 32.4-37.2% SL; predorsal length 47.1-49.6% SL; preorbital depth 64.2-73.3% HL; head width 48.9-53.6% HL; ectopterigoid narrow; process of second vertebra truncate; epibranchial 2 with two long tubular processes; anterior arm of epibranchial 1 long; trunk bars never ventrally forked, trunk bar 5 dorsally unforked, straight connection between trunk bars 5-6 above upper lateral line, dorsal portion of trunk bars 2-4 inclined posteriorly, trunk bar 1 only slightly curved, with anterior margin not expanded; opercle without spots and body side usually red (Ref. 75696).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435)
Threat to humans:  harmless


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