Oplegnathus robinsoni, the Natal knifejaw, is a fish that is endemic to the east coast of South Africa and Mozambique. They occur northwards from Transkei.

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Quick Facts Oplegnathus robinsoni, Scientific classification ...

Oplegnathus robinsoni
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Perciformes
Family:	Oplegnathidae
Genus:	Oplegnathus
Species:	O. robinsoni
Binomial name
Oplegnathus robinsoni Richardson, 1840

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The fish is grey-brown with a large second dorsal fin. The fish are yellow when they are small with four black stripes across the body. The teeth are part of the mouth to be able to tear off organisms. The fish grows up to 60 m long and 3 kg heavy.

They are found in reefs near the coast. They are also abundant in Lake St Lucia.

• Sea Fishes of Southern Africa. Rudy van der Elst & Dennis King. 2006. ISBN 978-1-77007-345-6
• Oplegnathus robinsoni by FishBase

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