| Family: |
Rivulidae (Rivulines), subfamily: Cynolebiinae |
| Max. size: |
4.72 cm SL (male/unsexed); 4.17 cm SL (female) |
| Environment: |
benthopelagic; freshwater, non-migratory |
| Distribution: |
South America: Laguna dos Patos basin in Brazil. |
| Diagnosis: |
Dorsal spines (total): 0-0; Dorsal soft rays (total): 16-26; Anal spines: 0-0; Anal soft rays: 21-29; Vertebrae: 28-31. Two apomorphic color patterns, body bright gray with dark gray to black stripes in males (versus light gray or no stripes; stripes of equal size to, or wider than the light interspaces) and a vertically paired black blotch on caudal peduncle of juveniles and females (versus small spots irregularly arranged, or a single round dorsally positioned spot, or no spots on caudal peduncle). Scales on longitudinal series 28-30, supraorbital neuromasts 19-24, caudal fin rounded (fin rays 23-26), pharyngobranchial teeth 2-5. Dorsal fin origin anterior to anal fin origin in females. |
| Biology: |
|
| IUCN Red List Status: |
Near Threatened (NT); Date assessed: 10 December 2020 (B1ab(iii)) Ref. (130435)
|
| Threat to humans: |
harmless |
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