| Family: |
Acestrorhamphidae (American tetras), subfamily: Acestrorhamphinae |
| Max. size: |
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18.6 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: Middle and lower Iguaçu Basin in Brazil. |
| Diagnosis: |
Dorsal soft rays (total): 11-11; Anal soft rays: 18-20. This species is distinguished from all its congeners from Rio Iguaçu by the following set of characters: third infraorbital narrow and deep, not in contact with preopercle, leaving an ample naked area between these bones; teeth of premaxillary series straight; symphysal teeth of premaxillary internal series and dentary teeth tricuspid; teeth on premaxillary external series often tricuspid, with lateral cusps minute when pentacuspid; rest of teeth in premaxillary internal series pentacuspid; maxillary bone long, forming an obtuse angle with premaxillary bone when mouth is closed; dentary large and provided with 4 large tricuspidate, followed by 3-5 tricuspid or pentacuspid teeth (Ref. 85756). |
| Biology: |
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| IUCN Red List Status: |
Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435)
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| Threat to humans: |
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