Opalfish

Opalfish
	An opalfish observed in the Wellington Harbour
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Trachiniformes
Family:	Percophidae
Genus:	Hemerocoetes
Species:	H. monopterygius
Binomial name
	Hemerocoetes monopterygius; Schneider, 1801

The opalfish, Hemerocoetes monopterygius, is a ray-finned fish 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).

Gallery

Drawing by Dr Tony Ayling
An opalfish surrounded by shells

References

^ 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.

"Hemerocoetes monopterygius". Integrated Taxonomic Information System. Retrieved 18 April 2006.
Froese, Rainer; Pauly, Daniel (eds.). "Hemerocoetes monopterygius". FishBase. January 2006 version.
Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8
Wade Doak, A Photographic Guide to Sea Fishes of New Zealand, (New Holland Publishers (NZ) Ltd, Auckland, New Zealand 2003) ISBN 1-877246-95-6

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[IUCN-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.

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