| Family: |
Rivulidae (Rivulines), subfamily: Kryptolebiatinae |
| Max. size: |
2.76 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: Mato Grosso River drainage, Saquarema Lagoon basin in southeastern Brazil. |
| Diagnosis: |
Dorsal soft rays (total): 7-9; Anal soft rays: 12-13; Vertebrae: 31-31. Anal fin with 11-13 rays; scales on the longitudinal series 29-30; caudal fin acuminate in males; mandibular neuromasts 4 +2; jaw length 19.5-23.5% of HL; dorsal portion of pectoral-fin base with dark grey spot; flank dark brown with horizontal rows of greenish blue spots on anterior portion and metallic blue bars on posterior portion in males, dark brown stripe on isthmus in males, dark brown and white alternating short bars on basal portion of anal fin in males and horizontal rows of pale golden to pale blue spots on flank in females (Ref. 72398). |
| Biology: |
Found in creeks and swamps in open vegetation areas, in shallow water (about 5-10 cm deep), both in clear and tea colored water (Ref. 72398). Feeds mainly on ostracods and terrestrial arthropods, but also takes copepods and decapods (Ref. 72398). |
| IUCN Red List Status: |
Critically Endangered (CR); Date assessed: 07 November 2018 (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)) Ref. (130435)
|
| Threat to humans: |
harmless |
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