Kyphosus cinerascens
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| Kyphosus cinerascens | |
|---|---|
| Kyphosus cinerascens in the Red Sea | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Centrarchiformes |
| Family: | Kyphosidae |
| Genus: | Kyphosus |
| Species: | K. cinerascens |
| Binomial name | |
| Kyphosus cinerascens Forsskål, 1775 | |

Kyphosus cinerascens, commonly known as the blue sea chub or blue-bronze chub, is a species of marine ray-finned fish in the family Kyphosidae.[2][3]
It is characterized by a single continuous dorsal fin with 11 spines and 12–14 soft rays[4], and an anal fin with 3 spines and 11–13 soft rays.[5] Adults can reach up to 45 centimetres (18 in) in length and are typically blue-grey, brown, or black in coloration.[6] The body is relatively deep and oval-shaped, with faint longitudinal lines formed by rows of scales.[6]
Distribution and habitat
This species occurs throughout the Indo-Pacific region, including the Hawaiian Islands, in tropical and subtropical waters.[2] It is commonly found over hard, algal-covered substrates in exposed reef environments, loagoons, and seaward reefs.[2]
Diet
Primarily herbivores, they mostly feed on phaeophytes, chlorophytes, and rhodophytes.[5]