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Chlorurus oedema (Snyder, 1909) Knothead parrotfish |
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photo by
Shao, K.T. |
| Family: | Scaridae (Parrotfishes), subfamily: Scarinae | |||
| Max. size: | 42 cm TL (male/unsexed) | |||
| Environment: | reef-associated; brackish; marine; depth range 1 - 50 m | |||
| Distribution: | Indo-West Pacific: Sri Lanka to the Philippines, north to the Ryukyu Islands. | |||
| Diagnosis: | Dorsal spines (total): 9-9; Dorsal soft rays (total): 10-10; Anal spines: 3-3; Anal soft rays: 9-9. Head with a hump, right above eye and vertically abrupt to snout. Median predorsal scales 3. Cheek with 3 scale rows (upper and middle rows 5, lower 1 or 2). | |||
| Biology: | Inhabits coastal rocky and coral reefs (Ref. 9710). Feeds on algae from hard substratum (Ref. 9710). Forms small groups (Ref. 90102). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 16 September 2009 Ref. (130435) | |||
| Threat to humans: | harmless | |||