| Family: |
Rivulidae (Rivulines), subfamily: Cynolebiinae |
| Max. size: |
4.71 cm SL (male/unsexed); 4.42 cm SL (female) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: floodplains of Verde Grande River, São Francisco River basin in Brazil. |
| Diagnosis: |
Dorsal soft rays (total): 15-25; Anal soft rays: 19-24; Vertebrae: 29-30. Distinguished from all members of Hypsolebias flavicaudatus complex by having a series of light golden to light blue short lines between the sub-distal portion of the dorsal-fin rays in males (vs. never a similar color pattern). The following combination of characters can be useful to diagnose from other members of the complex: 4-6 dorsal fin filaments, tips in much surpassing posterior margin of caudal fin; a triangular bluish white spot on the anterior portion of the dorsal-fin base in males; largest spot on the centre of the flank in females about equal to eye in size; pre-pelvic length 44.3-47.7% SL in males and 49.5-54.9% SL in females; anal-fin base in males 36.9-41.4% SL; head length in males 29.2-31.4% SL; body depth in males 37.9-40.4% SL; caudal peduncle depth in males 13.6-15.4% SL (Ref. 89836). |
| Biology: |
Occurs in seasonal swamps (Ref. 89836). |
| IUCN Red List Status: |
Endangered (EN); Date assessed: 18 May 2022 (B2ab(ii,iii,iv)) Ref. (130435)
|
| Threat to humans: |
harmless |
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.