P. biaculeatus has been thought to have a monospecific lineage , however genetic analysis has shown that it is closely related to A. percula and A. latezonatus .
The spine on the cheek of the fish is the characteristic that distinguishes the genus Premnas from the closely related Amphiprion .
Premnas   has been thought to have a monospecific lineage , however genetic analysis has shown that it is closely related to A. percula and A. latezonatus .
The spine on the cheek of the fish is the characteristic that distinguishes the genus Premnas from the closely related Amphiprion .