'''''Opistognathus rosenblatti''''', the '''Blueblue-spotted jawfish''', is a [[species]] of [[jawfish]] native to the [[Gulf of California]]. It is an inhabitant of [[reefs]] where it is found in large colonies at depths of around {{convert|12|m|ft}}. This species hides in its burrow at night, completely sealing the entrance. Every morning it rebuilds the burrow entrance. It can reach a length of {{convert|10|cm|in}} [[fish measurement|TL]]. It can also be found in the [[aquarium]] trade.<ref>{{FishBase species | genus = Opistognathus | species = rosenblatti| month = February| year = 2014}}</ref>