Species:  Rivulus hartii
Description: Boulenger, 1890
Etymology: Hart's rivulus
References: Andreas Lettner, DKG-Journal 30(1): 22-24, February 1998
Andreas Lettner, BKA-KilliNews 402(1): 31-33, March 1999
Dr Lothar Seegers, Killifishes of the World: New World Killis, Aqualog Verlag pg 138-139
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Abstract: One of the larger Rivulus. Very good at jumping.
Synonyms:
  • "Giant Rivulus"
  • "Jumping guabine"
  • "Trinidad Rivulus"
  • Rivulus harti
  • Rivulus spec. "San Augustin"
    		•
    Type Locality:  
    Distribution: Trinidad and Tobago and the northern coast plains of Venezuela.
    Biotope: Like almost all Rivulus species, this fish lives in the border areas of small streams and streamlets, and swampy area with small puddles. It is an omnivore that sometimes eats guppies. It eats them at a rate of one every 5 hours according to some studies. It is a widespread guppy predator even found near waterfalls that exclude other predatory fishes.
    Size: 10 - 12 cm
    Characteristics: The males are a light blue-green in color and have 8 longitudinal rows of closely spaced red spots on their flanks running from behind the gill covers to the caudal fin. The caudal fin has an inner white stripe and an outer yellow stripe edging the top and bottom. The females are a more subdued brown in color with the characteristic black rivulus eyespot high on the caudal peduncle. There is little difference in size between the two sexes.
    Variations:  
    History:  
    Gallery:  
    Populations:
  • CI 88
  • "Amos Vale" Tobago 96
  • "Arima"
  • "Caracas"
  • "Granville Trinidad"
  • "Isla Margarita"
  • "Mikkelsen"
  • "Peninsula de Paria"
  • "Point Radix"
  • "San Augustin"
  • "San Juan"
  • "Santa Margarita"
  • "Trinidad"
    • Breeding: This species is a top spawner. They can live up to 4 or 5 years.
    Incubation: 14 days incubation in water at 20 - 24C.
    18 - 24 days on wet peat.
    Egg Diameter: 1.7 - 1.9 mm
    Remarks:  
    Contributors: David Baker
    Links: FishBase o Google o Google Image Search
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