Jenynsia
onca
Lucinda, Reis & Quevedo, 2002
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Family:
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Anablepidae
(Four-eyed fishes, onesided livebearers & white-eye), subfamily: Jenynsiinae
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Google Image (not verified) http://www.ccfishery.net
May show another species!
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Order:
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Cyprinodontiformes
(rivulines, killifishes and live bearers)
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Class:
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Actinopterygii (ray-finned fishes)
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In this site name:
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Max. size:
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2.6 cm SL (male/unsexed; Ref. 42933); 3.73 cm SL (female) |
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Environment: |
pelagic; freshwater
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Climate: |
tropical |
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Importance:
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Resilience: |
High, minimum population doubling time less than 15 months(Preliminary K or Fecundity.)
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Distribution:
www.ccfishery.net
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South America: tributaries of the lower Rio Uruguai in Brazil and Uruguay.
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Morphology:
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Dorsal
soft rays
(total): 6 - 9;
Anal
soft rays: 10;
Vertebrae: 30. Having a large dorsal convex expansion at subdistal segments of right half of sixth anal-fin ray of adult males; distinct ovoid to circular dark spots confined to ventral half of flank posterior to pelvic fins; spots gradually more circular towards midventral line; predorsal scales 13-14; series of dashes or spots on body arranged in 6-8 irregular horizontal lines, consistent midlateral pattern absent; no swelling between the urogenital opening and anterior base of anal fin in females; no distinct dark rounded spot on the dorsal pectoral-fin base (Ref. 42933).
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Biology: |
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Red List Status: |
Not in IUCN Red List (Ref. 57073)
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Dangerous:
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harmless
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Coordinator: |
Ghedotti, Michael J.
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