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Oligosarcus platensis  (Messner, 1962)

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Oligosarcus platensis
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Characiformes (Characins) > Characidae (Characins) > Incertae sedis
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; benthopelagic.   Subtropical, preferred ?

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: known from only one specimen from Laguna Tropa Vieja, Río de la Plata basin, Uruguay.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 9.7 cm SL male/unsexed; (Ref. 99820)

Short description Morphology | Morphometrics

Oligosarcus platensis is distinguished from O. amome in having premaxillary teeth in the outer series tricuspidate (vs. pentacuspidate); premaxillary inner series with teeth bi to pentacuspidate (vs. penta to heptacuspidate) ; 17 maxillary teeth (uni to tricuspidate) (vs. ten to eleven maxillary teeth (uni to pentacuspidate)); dentary teeth uni to pentacuspidate (vs. uni to heptacuspidate); 27 branched anal-fin rays (vs. 20 to 23); 44 scales on lateral line (vs. 39 to 41); and 24 predorsal scales (vs. 14 to 16) (Ref. 99820).

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Almirón, A., J. Casciotta, L. Piálek, K. Doubnerova and O. ?ican, 2015. Oligosarcus amome (Ostariophysi: Characidae), a new species from the río Uruguay basin, Misiones, Argentina. Zootaxa 3915(1):581-590. (Ref. 99820)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




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