Pseudanthias truncatus, commonly known as the truncate anthias, is a species of marine ray-finned fish, a member of the genus Pseudanthias which is part of the subfamily Anthiinae, which in turn is part of the family Serranidae, the groupers and sea basses. It is an Indo-Pacific species which is found from the Maldives to Samoa, north to the Ryukyu Islands and south to the Great Barrier Reef. It occasionally makes its way into the aquarium trade. It grows to a size of 19 cm in length.
The truncate anthias is a small, brightly colored fish. The body is orange-red, with a white belly and a black spot on the operculum. The dorsal fin is yellow, with a black margin. The anal fin is red, with a white margin. The pectoral fins are yellow, and the pelvic fins are orange. The caudal fin is forked, and is yellow with a black margin.
The truncate anthias is a schooling fish, and is often found in groups of up to 10 individuals. It is a territorial fish, and will defend its territory from other fish. It is an omnivore, and feeds on algae, invertebrates, and small fish.
The truncate anthias is a popular aquarium fish. It is relatively easy to care for, and is a hardy fish. It is a good choice for a community tank, as it is peaceful and will not harm other fish. However, it is important to provide it with a large tank, as it is a schooling fish. It is also important to provide it with plenty of hiding places, as it is a shy fish.