Article · Wikipedia archive · Last revised Jul 18, 2026

Melichthys

Melichthys is a small genus in the triggerfish family (Balistidae). Member species are found in the Indian Ocean, Pacific Ocean and even the Red Sea. The Black triggerfish is the largest species in this genus at 45 cm in length and the Indian triggerfish is the smallest at 25 cm. Melichthys niger and Melichthys indicus are similar in appearance and are often confused.

Last revised
Jul 18, 2026
Read time
≈ 1 min
Length
170 w
Citations
1
Source
Melichthys
Melichthys vidua
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Tetraodontiformes
Family: Balistidae
Genus: Melichthys
Swainson, 1839

Melichthys is a small genus in the triggerfish family (Balistidae). Member species are found in the Indian Ocean, Pacific Ocean and even the Red Sea (M. niger). The Black triggerfish is the largest species in this genus at 45 cm in length and the Indian triggerfish is the smallest at 25 cm. Melichthys niger and Melichthys indicus are similar in appearance and are often confused.

Species

There are currently 3 recognized species in this genus:1

Image Scientific name Common name Distribution
Melichthys indicus J. E. Randall & Klausewitz, 1973 Indian triggerfish Indian Ocean.
Melichthys niger Bloch, 1786 Black triggerfish Hawaii, up through Polynesia, westward to the East Indies and across the Indian Ocean
Melichthys vidua J. Richardson, 1845 Pinktail triggerfish Indo-Pacific.
References

References