| Family: |
Rivulidae (Rivulines), subfamily: Rivulinae |
| Max. size: |
1.89 cm SL (male/unsexed); 1.52 cm SL (female) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: Brazil. |
| Diagnosis: |
Dorsal soft rays (total): 6-7; Anal soft rays: 8-9; Vertebrae: 31-31. This species is distinguished from its congeners and all species of other genera of the subfamily Rivulinae by the following characters: pelvic-fin rays 4 in females, 5 in males(vs. 5-7 in both sexes of other congeners, 6-9 in other rivulines), branchiostegal rays 4 (vs. 5-6); anterior portion of anal fin, involving the space occupied by the first two fin rays, white in both sexes; differs from all its congeners, except L. uatuman, by having the caudal fin dark coloured in males (dark crimson red in L. jauaperi, dark grey in L. uatuman) with a contrasting distal white band (vs. caudal fin never dark coloured, distal white band absent); further differs from
L. uatuman by having caudal fin dark crimson red in both sexes (vs. dark grey in males, hyaline in females) and with five pelvic-fin rays in male and four in female (vs. six in both sexes) (Ref. 95090). |
| Biology: |
|
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
| Threat to humans: |
harmless |
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