Distinctive Characters: Dorsal fin with 9 spines and 11 rays. Anal fin with 3 spines and 9 rays. Pectoral fin with 14 rays. Body depth 2.7 – 3.3 in standard length. Preopercular margin smooth. Cornea divided to form a double pupil.
Colour: Red with numerous fine pale longitudinal lines. White stripes under eye. Caudal fin green with a small black spot at upper base.
Habitat and Biology: A shy and secretive species. Common on reef slope. Feeds on small crustaceans and other animals.
Remarks: Pseudocheilinus evanidus is a secretive species, hence the English name, disappearing wrasse.
Further study may result in its being placed in a monotypic family.