The opalfish, Hemerocoetes monopterygius, is a duckbill of the genus Hemerocoetes, found only around New Zealand, at depths of between 5 and 200 metres (16 and 656 ft). Their length is between 10 and 25 centimetres (3.9 and 9.8 in).

Opalfish
An opalfish observed in the Wellington Harbour
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Trachiniformes
Family: Percophidae
Genus: Hemerocoetes
Species:
H. monopterygius
Binomial name
Hemerocoetes monopterygius
Schneider, 1801
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References

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  1. ^ Nelson, J.; Matsuura, K.; Collette, B.; et al. (2017) [errata version of 2010 assessment]. "Hemerocoetes monopterygius". IUCN Red List of Threatened Species. 2010: e.T154636A115215793. doi:10.2305/IUCN.UK.2010-4.RLTS.T154636A4594312.en.