Assiculus is a genus of fish in the "dottyback" family Pseudochromidae. It is monotypic, containing only Assiculus punctatus.[2] It is a small species of dottyback which is covered in small, bright blue spots. The males are bluish in colour while the females are greenish-yellow and are smaller than the males.[3]A. punctatus is found in coastal areas in the vicinity of reefs and weedy areas; normally in rather turbid waters as deep as 30 metres (98 ft). This secretive species frequents areas where there are highly eroded limestone reefs and rocks.[4]