Tridensimilis

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Tridensimilis
Systematics
Sub-cohort : Ostariophysi
Order : Catfish (Siluriformes)
Subordination : Loricarioidei
Family : Loach catfish (Trichomycteridae)
Subfamily : Tridentinae
Genre : Tridensimilis
Scientific name
Tridensimilis
Schultz , 1944

The representatives of the genus Tridensimilis , which belongs to the loach catfish family, are incorrectly referred to as urethral catfish in German usage . These are sociable schooling fish that also mingle with schools of armored catfish and tetras. They have nothing to do with the actual urethral catfish of the subfamily Vandelliinae , but belong to the subfamily Tridentinae .

features

The body of Tridensimilis is predominantly transparent; in addition to the bones, large parts of the digestive tract such as the liver, kidneys, heart and intestines can be seen. Ingested food can thus be observed on its way through the body. The eggs can also be seen in pregnant females. The animals are only about three centimeters long. They differ from other loach catfish in that they have an anal fin with 15 to 25 rays attached in front of the dorsal fin.

Way of life

Tridensimilis species are restless swimmers who only stop for a short time at night. They prefer to feed on insect larvae and small aquatic organisms. Occasionally it is reported, without further indication of the source, that aquarists have observed that Tridensimilis brevis kept in groups, attacked other aquarium fish and ate their mucous membranes. Other reliable sources have not reported such behavior even though they kept their animals in a tetrat community tank. In no case has blood sucking behavior been reported.

species

So far only two types are known:

literature

  • Schultz, LP (1944): The catfishes of Venezuela, with descriptions of thirty-eight new forms. Proceedings of the United States National Museum , 94 (3172): 173-338.
  1. ^ Riehl, R. & Baensch, HA (1996): Aquariums Atlas . 1st volume. 10th edition. Mergus Verlag, Melle.
  2. ↑ Schraml, E. (2005): Experiences with Tridensimilis brevis. Aquaristik aktuell , 13 (5): 58-61.
  3. ↑ Evers, H.-G. & Seidel, I. (2002): Wels Atlas, Vol. 1 . Melle.
  4. ↑ Hoffmann, P. & Hoffmann, M. (1998): First observations on the reproduction of loach catfish. The Aquariums and Terrariums Journal , 51 (7): 429-431.

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