Warty oreo
| Warty oreo | |
|---|---|
.gif) | |
| Drawing by Dr Tony Ayling | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Zeiformes |
| Family: | Oreosomatidae |
| Genus: | Allocyttus |
| Species: | A. verrucosus |
| Binomial name | |
| Allocyttus verrucosus Gilchrist, 1906 | |
The warty oreo (Allocyttus verrucosus) is an oreo found in all southern oceans at depths of between 300 and 1,600 m. Its length is up to 42 cm.
The warty oreo resembles the spiky oreo. However, there are differences: the body, which has a shape much like a diamond, has a lower corner not as pointed, a dorsal which is not as tall as that of the spiky oreo, and there are spines along the warty oreo's anal fin. In addition, there are two rows of scales, which are relatively large and warty, bedecking the sides of the warty oreo between the fish's pelvic fin and its anal fin. The warty oreo has a dark gray colour and is black-finned.
Warty oreos live in the waters of continental slopes, and they form in large schools over rough terrain. Young warty oreos are pelagic and reside in shallow waters of the oceans - less than a kilometer in depth. They eat other fish, as well as cephalopods and shrimp. The eggs and larvae of warty oreos live on or near the surface of the sea.
They are very long living creatures, the oldest living to be 210 years old. This sets it as the longest living macrovertebrate in the world.
References
- Ayling, Tony (1982). Collins guide to the sea fishes of New Zealand. With 48 colour plates by Geoffrey J. Cox. Auckland: Collins. ISBN 0002169878.
- Froese, Rainer and Pauly, Daniel, eds. (2006). "Allocyttus verrucosus" in FishBase. March 2006 version.
- "Warty oreo (Allocyttus verrucosus) longevity, ageing, and life history". AnAge: The Animal Ageing and Longevity Database. Human Ageing Genomic Resources. October 14, 2017. Retrieved August 24, 2018.