| Long-finned sand diver | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Creediidae |
| Genus: | Limnichthys |
| Species: | L. polyactis |
| Binomial name | |
| Limnichthys polyactis Nelson, 1978 |
|
The long-finned sand diver or tommyfish, Limnichthys polyactis, is a sandburrower of the genus Limnichthys, found all around the North Island of New Zealand to depths of about 5 m, on sandy or gravelly bottoms. Its length is between 3 and 8 cm.