About Chromis atrilobata Gill, 1862
This damselfish species is currently classified as Chromis atrilobata Gill, 1862, and was previously called Azurina atrilobata. It is commonly known as the scissortail damselfish, and belongs to the damselfish family Pomacentridae. Its distribution ranges across the eastern Pacific Ocean, from the Gulf of California down to northern Peru; this range includes both the Galapagos Islands and the Cocos Islands. The species lives in coral and rocky reefs. It forms large aggregations that swim in open water above reefs. Its diet consists of zooplankton. It does not exhibit strong territorial behavior. In the darkness of deep water, all of its body becomes invisible except for a white spot located behind its dorsal fin, which creates the illusion that the spot is glowing in the dark. The species is oviparous. Males of this species guard and aerate the eggs after they are laid.
