| Family: |
Acestrorhynchidae (Smallscale pike characins), subfamily: Roestinae |
| Max. size: |
14.2 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: Rio Tocantins basin, Brazil. |
| Diagnosis: |
Anal spines: 4-5; Anal soft rays: 38-41; Vertebrae: 39-39. Roestes itupiranga has fewer branched anal-fin rays (38-41) than R. molossus (43-47) and than R. ogilviei (41-43). Can be further distinguished from R. ogilviei by having more scale rows between lateral line and anal-fin origin (18-19, versus 15-16) and more scale rows around caudal peduncle (31-31, versus 27-28). |
| Biology: |
|
| IUCN Red List Status: |
Vulnerable (VU); Date assessed: 07 November 2018 (B1ab(iii)) Ref. (130435)
|
| Threat to humans: |
harmless |
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