Triops cancriformis

Triops cancriformis

Along with T. longicaudatus, and L. apus, this is the most widespread and common of the triops.  Next to T. longicaudatus, it is the most studied.  It also shares the honor of being considered a rice crop pest with T. longicaudatus. Notable in that it is probably the “proto-triops” from which all the others have evolved in the past 200 or so million years, it is also the oldest known living species of any animal.

Major species

Triops cancriformis


  • Triops cancriformis cancriformis
  • Triops cancriformis mauretanicus
  • Triops cancriformis simplex


  • Africa
    • Senegal
    • South Africa
  • Asia
    • India (?)
    • Japan
    • Russia
  • Europe
    • Austria
    • Czech Republic
    • Denmark
    • England
    • France
    • Germany
    • Hungaria
    • Italy
    • Macedonia
    • Portugal
    • Scandinavia
    • Scotland
    • Slovakia
    • Spain
    • Sweden
    • Yugoslavia
  • Israel
  • Maltese Islands


Temporary fresh or brackish waters

Temperature range

Minimum Temp: 10°C (50°F) Maximum Temp: 28°C (82°F)

Body ring/segments

32 – 35; 4 – 9 apodous


48 – 57

Notable characters

Furca generally long


Bisexual (often female biased), hermaphroditic, and unisexual

Life span

Approximately 100 days. Usually half that in a Aquarium.

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