Rio de la Plata onesided livebearer (Jenynsia multidentata)

Scientific name: Jenynsia multidentata Jenyns, 1842

Rio de la Plata onesided livebearer (Jenynsia multidentata)

The Rio de la Plata onesided livebearer (Jenynsia multidentata) is a freshwater fish of the family Anablepidae. Native range: South America, Rio de Janeiro, Brazil to northern Argentina.

Biology

Dorsal soft rays (total): 8-9; Anal soft rays: 10. (1) round or short, horizontal dash-shaped markings on sides that form approximately five to seven rows and also lines that extend for more than four scales in length on ventral caudal peduncle in adult females and large males; (2) presence of a distinct swelling between urogenital opening and anterior base of anal fin in females.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Jenynsia multidentata
Family
Anablepidae (Four-eyed fishes, onesided livebearers & white-eye)
Order
Cyprinodontiformes (Live bearers, Killifishes and Rivulines)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
6.56
Environment
Freshwater; benthopelagic
Climate
Temperate
Distribution
South America: Rio de Janeiro, Brazil to northern Argentina.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Aquarium: commercial
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

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Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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