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; wichi: Named for the Wichi indigenous people who inhabited in several settlements very close to the type locality (Ref. 128060).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: Argentina (Bermejo river drainage, Parana river basin)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.2 cm SL male/unsexed; (Ref. 128060)
Morphology | Morphometrics
This species can be distinguished from its congener A. patriciae by having a convex dorsal profile of head (vs. concave); absence of filamentous rays noticeably overpassing the interradial membrane distal margin of dorsal and anal fin in adult males (vs. present); presence of small numerous whitish dots on unpaired fins in males (vs. fewer and bigger); infraorbital and supraorbital bands thinner than pupil and pointed distal portion (vs. equal or wider than pupil and rounded distal portion); dorsal-fin origin posterior to anal fin origin in females (vs. anterior). Colour pattern in females similar to A. patriciae, with grey pinkish background having irregular grey blotches and some dark blue blotches over the caudal peduncle and body flank. It differs from A. varzeae by having a supraorbital band equal or longer than the infraorbital band (vs. always shorter than infraorbital bar) and color pattern having an orange background with small black and grey relatively rounded, irregular blotches. It differs from A. araucarianus, which presents a yellowish brown pale flank, with vertically elongated dark grey to black spots, often forming short narrow bars (Ref. 128060).
Known only from its type locality, a seasonal paleochannel from the Bermejo River basin (Parana River basin). The habitat is highly impacted by human activities since it is surrounded by mostly soybean plantations. Also, presence of domestic cattle in this area is evident which alters the pond bottom structure (Ref. 128060).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Alonso, F., G.E. Teran, P. Calviño, I. Garcia, Y. Cardoso and G. Garcia, 2018. An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region. PLoS ONE 13(5):e0196261. (Ref. 128060)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00396 - 0.02008), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
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).