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Rhamphichthys
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Rhamphichthys is a genus of South American sand knifefishes found in the Amazon, Orinoco, Río de la Plata and Paranaíba basins, as well as rivers in the Guianas.[1] They are found along vegetated edges or near the bottom of rivers;[1] they are often quite common in deep river channels.[2] Rhamphichthys feed on small invertebrates. Little else is known about their behavior, but observations in aquariums indicate that they are nocturnal.[1] They have a relatively long slender snout and depending on the exact species reach up to 26.5–100 cm (0.9–3.3 ft) in total length.[1][3]

Species

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

References

  1. ^ a b c d van der Sleen, P.; J.S. Albert, eds. (2017). Field Guide to the Fishes of the Amazon, Orinoco, and Guianas. Princeton University Press. p. 340. ISBN 978-0691170749..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""'"'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
  2. ^ a b Carvalho, T.P. & Albert, J.S. (2015): A New Species of Rhamphichthys (Gymnotiformes: Rhamphichthyidae) from the Amazon Basin. Copeia, 103 (1): 34-41.
  3. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2017). Species of Rhamphichthys in FishBase. December 2017 version.


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Rhamphichthys: Brief Summary
provided by wikipedia EN

Rhamphichthys is a genus of South American sand knifefishes found in the Amazon, Orinoco, Río de la Plata and Paranaíba basins, as well as rivers in the Guianas. They are found along vegetated edges or near the bottom of rivers; they are often quite common in deep river channels. Rhamphichthys feed on small invertebrates. Little else is known about their behavior, but observations in aquariums indicate that they are nocturnal. They have a relatively long slender snout and depending on the exact species reach up to 26.5–100 cm (0.9–3.3 ft) in total length.

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