Calotomus viridescens  (Rüppell, 1835)

Viridescent parrotfish
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Image of Calotomus viridescens (Viridescent parrotfish)
Calotomus viridescens
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Scaridae (Parrotfishes) > Sparisomatinae
Etymology: Calotomus: Greek, kalos, kallos = beautiful + Greek, tomos = section, cut (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range ? - 30 m (Ref. 9710).   Tropical

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 21.0 cm SL male/unsexed; (Ref. 3488)

Short description Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 9; Vertebrae: 25. Head and body gray-brown with darker scale edges, paler ventrally. Numerous dark spots on scales on operculum and region circumscribed by pectoral fin. Flexible dorsal spines; caudal fin rounded in juveniles, double emarginate in adults; pectoral fin base yellowish, the rest unpigmented; pale pelvic fins with 2 reddish bars, at the center and near the base. Skin dark, almost black around anus. Orangish iris.

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri

Western Indian Ocean: known only from the Red Sea, ranging from the Gulf of Aqaba to at least the coast of Ethiopia.

Biology     Glossary (e.g. epibenthic)

Inhabits coral and rocky reefs and grass bed areas to depths of about 30 m (Ref. 9710). Occurs singly or in small groups (Ref. 9710). Feeds mainly on marine angiosperms and epiphytic algae. Caught mainly with traps, nets and other types of artisanal gear.

Main reference Upload your references | References | Coordinator : Westneat, Mark | Collaborators

Bruce, R.W. and J.E. Randall, 1985. A revision of the Indo-West Pacific parrotfish genera Calotomus and Leptoscarus (Scaridae: Sparisomatinae). Indo-Pac. Fish. (5):32 p.

IUCN Red List Status (Ref. 90363)

  Least Concern (LC) 

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

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Summary page | Point data | Common names | Photos

Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (-0.15505 - 0.19495), b=3.01 (2.92 - 3.10), based on all LWR estimates for this BS (Ref. 93245).
Trophic Level (Ref. 69278):  2.0   ±0.00 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (23 of 100) .
Price category (Ref. 80766):   High.