Thai National Parks

Marine spacies of Thailand

Species of Thailand

Blue triggerfish

Binomial name: Pseudobalistes fuscus, Marcus Elieser Bloch & Johann Gottlob Theaenus Schneider, 1801

Pseudobalistes fuscus, common names blue triggerfish or rippled triggerfish, yellow-spotted triggerfish and blue-and-gold triggerfish, is a fish belonging to the family Balistidae.

Description

Pseudobalistes fuscus can reach a length of 55 centimetres (22 inches) in males. The body is mainly brown, but fins have yellow margins. Juveniles are yellowish brown with a network of brilliant bluish wavy lines. With growth these lines become interconnected.

This fish is known for its aggressiveness and many divers choose to stay away from them, as they bite often.

Distribution

This species is widespread in the Tropical Indo-Pacific, from the Red Sea to South Africa, Society Islands, southern Japan, Australia and New Caledonia.

Habitat

Yellow-spotted triggerfish is a reef-associated species. It prefers coastal waters, shallow lagoons and seaward reefs, at 30 - 50 m of depth.

Diet

This triggerfish, like most other triggerfish, eats shellfish, small crustaceans, and other bottom-dwelling invertebrae.

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Scientific classification

Kingdom
Animalia
Phylum
Chordata
Class
Actinopterygii
Order
Tetraodontiformes
Family
Balistidae
Genus
Pseudobalistes
Species
Pseudobalistes fuscus

Synonyms

  • Balistes rivulatus, Eduard Rüppell (1837)
  • Balistes caerulescens, Eduard Rüppell (1829)
  • Balistes fuscus, Marcus Elieser Bloch & Johann Gottlob Theaenus Schneider (1801)

Range Map

Range map of Pseudobalistes fuscus in Thailand