New Zealand grayling
(Prototroctes oxyrhynchus)
Description
The New Zealand grayling,Prototroctes oxyrhynchus,is an extinct smelt of the genus Prototroctes,which was found only in lowland rivers and streams of New Zealand.They were an amphidromous species—spawning in freshwater streams and developing to maturity in saltwater.Their length was between 20 and 40 cm.
Taxonomic tree:
Domain:
Kingdom: Animalia
Phylum:
Class: Actinopterygii
Order:Osmeriformes
Family:Retropinnidae
Genus:Prototroctes
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