Rhabdolichops

Rhabdolichops is a genus of glass knifefishes found in Amazon, Orinoco and Maroni basins in tropical South America. They live near the bottom in main river channels, floodplains (including flooded forest like igapó) and lagoons, and are typically found in relatively deep waters.[1]

Rhabdolichops
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Actinopterygii
Order:
Gymnotiformes
Family:
Sternopygidae
Genus:
Rhabdolichops

C. H. Eigenmann & W. R. Allen, 1942

Rhabdolichops are typically overall grayish, dusky or semi-translucent resulting in whitish/pinkish color.[1] There are two species groups: One (including most species) where the pectoral fins are relatively short and without conspicuous pigmentation, and another (including R. lundbergi and R. nigrimans) where they are relatively long and all dark or dark at the tip.[1][2] Depending on the exact species, they have a maximum total length of 16–49 cm (6.5–19.5 in).[3] They feed on small invertebrates such as aquatic insect larvae and zooplankton.[1][2]

Species

There are currently 10 species in this genus:[3]

  • Rhabdolichops caviceps (Fernández-Yépez, 1968)
  • Rhabdolichops eastwardi Lundberg & Mago-Leccia, 1986
  • Rhabdolichops electrogrammus Lundberg & Mago-Leccia, 1986
  • Rhabdolichops jegui Keith & Meunier, 2000
  • Rhabdolichops lundbergi Correa, Crampton & Albert, 2006
  • Rhabdolichops navalha Correa, Crampton & Albert, 2006
  • Rhabdolichops nigrimans Correa, Crampton & Albert, 2006
  • Rhabdolichops stewarti Lundberg & Mago-Leccia, 1986
  • Rhabdolichops troscheli (Kaup, 1856)
  • Rhabdolichops zareti Lundberg & Mago-Leccia, 1986

References
  1. Correa, S.B.; W.G.R. Crampton; J.S. Albert (2006). "Three New Species of the Neotropical Electric Fish Rhabdolichops (Gymnotiformes: Sternopygidae) from the Central Amazon, with a New Diagnosis of the Genus". Copeia. 2006 (1): 27–42. doi:10.1643/0045-8511(2006)006[0027:tnsotn]2.0.co;2.
  2. van der Sleen, P.; J.S. Albert, eds. (2017). Field Guide to the Fishes of the Amazon, Orinoco, and Guianas. Princeton University Press. p. 344. ISBN 978-0691170749.
  3. Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Rhabdolichops in FishBase. December 2017 version.


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