- English Name : Lined surgeonfish
- Local Name : Fashuvi libaas
- Size : Max. 38 cm
- Family : ACANTHURIDAE
- Order : Perciformes
- Distinctive Characters: Dorsal fin with 9 spines and 27-29 rays. Anal fin with 3 spines and 25-28 rays. Pectoral rays 16. Adult body depth about 2.2 in standard length. Caudal peduncle spine very long. Caudal fin lunate.
- Colour: Distinctly and beautifully coloured, with alternate black edged yellow and blue stripes.
- Habitat and Biology: An inshore species of coral reefs or rocky substrates exposed to wave action. Feeds
on benthic algae. Territorial and very aggressive. Distribution: Indo-Pacific. - Remarks: Acanthurus lineatus is a very common inhabitant of shallow reef flats. This beautifully marked surgeonfish is very popular among aquarists and divers. The caudal spine is apparently venomous.