- English Name : Picasso triggerfish
- Local Name : Gabulhi rondu
- Size : Max. 28 cm
Family : BALISTIDAE - Order : Tetraodontiformes
- Distinctive Characters: Dorsal fin with 3 spines and 24-26 rays. Anal fin with 21-23 rays. Pectoral fin with 12-14 rays. Head pointed; dorsal and ventral profiles nearly straight. 3 rows of forward curving spines on caudal peduncle. Caudal fin rounded to double emarginate, the corners regular.
- Colour: Pale brown shading to white below. Complexly coloured with blackish, blue and yellow bands. Peduncular spines black edged with blue. Anus black.
- Habitat and Biology: Common on shallow lagoon reef environments dominated by sand. Omnivorous, feeding on a wide range of invertebrates, fishes and also algae.
- Distribution: Indo-Pacific.
- Remarks: Rhinecanthus aculeatus is a very common inhabitant on Maldivian reefs. It is often seen sleep-
ing on its side at night and makes a whirring noise when startled. A popular aquarium fish.