| Family: |
Rivulidae (Rivulines), subfamily: Cynolebiinae |
| Max. size: |
5 cm SL (male/unsexed); 3.6 cm SL (female) |
| Environment: |
benthopelagic; freshwater, non-migratory |
| Distribution: |
South America: Middle São Francisco River basin in Brazil. |
| Diagnosis: |
Dorsal spines (total): 14-17; Anal spines: 16-18; Vertebrae: 32-33. Short alveolar arm of premaxilla; very narrow and short ventral process of angulo-articular; ventroposterior part of mesopterygoid overlapping dorsal border of quadrate; truncate dorsal portion of opercle. Absence of gill-rakers denticles on the first branchial arch. Narrow lateral process of sphenotic. Ventral opercular neuromasts 5-6. Deepest body point on vertical through an area between pectoral and pelvic-fin bases. Dorsal-fin rays in males, 15-18, 14-17 in females; anal-fin rays 17-20 in males, 17-20 in females; caudal-fin rays 26-29. Caudal and pectoral fins rounded. Supraorbital neuromasts 24-28 (Ref. 40938). |
| Biology: |
In temporary ponds. Known only from the type locality (Ref. 27234). Bottom spawner, ? months incubation. |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435)
|
| Threat to humans: |
harmless |
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.