Opalfish

The opalfish (Hemerocoetes monopterygius; ) is a ray-finned fish of the genus Hemerocoetes, found only around New Zealand, at depths of between . Their length is between .

Gallery

<Gallery> File:Hemerocoetes monopterygius (Opalfish).gif|Drawing by Dr Tony Ayling File:Hemerocoetes_monopterygius_2022-09_(3).jpg|An opalfish surrounded by shells </gallery>

References

• Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982)
• Wade Doak, A Photographic Guide to Sea Fishes of New Zealand, (New Holland Publishers (NZ) Ltd, Auckland, New Zealand 2003)