Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Austrolebias: Composed from Austro = the south + see under Lebias; guarani: Named for the Guaraní indigenous people, who live in several settlements very close to the type locality of this species, as a vindication of their culture and history..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic; depth range 0 - 1 m (Ref. 129129). Tropical
South America: Argentina.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.5 cm SL male/unsexed; (Ref. 129129); 3.8 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished from its congeners by having a unique colour pattern consisting of the following: mature males when alive with scattered small dark brown to grey irregular blotches on the laterodorsal surface of head and anterior portion of trunk, with many and relatively big sub-square irregular iridescent turquoise to light blue blotches on unpaired fins, evenly distributed, and those in the distal portion are elongated and merging, the trunk and tail with anterocentral part of scales iridescent turquoise with grey borders generating a reticulated pattern, the thin external border of the scales in the dorsal part of trunk, below the dorsal fin, are iridescent turquoise, and orange-yellowish background coloration on the base of unpaired fins and yellowish belly; in juveniles and young adults, anterior nostrils are ventrolaterally directed (Ref. 129129).
Found only in its type locality which is a seasonal pond, mainly covered with grass, in the Paraná Forest at ca.185 m a.s.l.. It is in an open space, in the surrounding jungle, with abundant palm trees. Maximum depth measured was ca. 80 cm, and the water was clear and no submerged aquatic vegetation was observed. The bottom is of soft sediment, with abundant organic
matter (Ref. 129129).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
ECoF, Eschmeyer's Catalog of Fishes, 2023. Catalog of Fishes. 1985 - onwards. CITATION NOT TO BE USED OUTSIDE FISHBASE. SEE REMARKS. Authorship varies in time: Eschmeyer, W.N.; Fricke, R.; Van der Laan, R. Web database. http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp (Ref. 123477)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Tools
Special reports
Download XML
Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
