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  8. ›Smallscale Pike Characins
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  10. ›Gnathocharax
Arowana Tetra
Plate 1 of 1. (c) Clinton & Charles Robertson, some rights reserved (CC BY) · via iNaturalist

Arowana Tetra

Gnathocharax steindachneri

Gnathocharax, is a monospecific genus of freshwater ray-finned fish belonging to the family Acestrorhynchidae, which includes the freshwater barracudas and the biting tetras. The only species in the genus is Gnathocharax steindachneri, also known as the arowana tetra. This fish is found in tropical freshwater habitats in the Orinoco and Amazon basins of South America.

Continue reading on Wikipedia

From the article Gnathocharax on Wikipedia (CC BY-SA), quoted section by section

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Description

Gnathocharax has a maximum standard length of 5 cm (2.0 in). This taxon has a thin, laterally compressed body. Both jaws have prominent, protruding teeth, and the mouth points upwards. The background colour is silvery with a greenish iridescence, with a black blotch with red spots on its anterior and posterior margins on the caudal peduncle. There is a red crescent around the eyes, and a scattering of small black spots on the otherwise transparent fins.

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Range & habitat

Gnathocharax is found in the drainages of the Amazon and Orinoco rivers, and has been recorded from Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela.

== References ==

Wikipedia: “Distribution”

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In human culture

Ganthocharax combines gnáthos, meaning "jaw" in Greek, an allusion to the angled elongated maxilla, with charax, meaning a "palisade". Charax is a reference to this fish's dense, sharp teeth, and is a common element in the scientific names of characins. The specific name honours Franz Steindachner, the Austrian ichthyologist.

Wikipedia: “Etymology”

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.

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In the stacks

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Every page naming Gnathocharax steindachneri in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 607826.