Abudefduf nigrimargo
Abudefduf nigrimargo, known as the black margined-scale sergeant, is a species of damselfish in the family Pomacentridae. It is native to the northwestern Pacific Ocean, where it is known only from Taiwan. The species is known to occur above shallow rocky reefs, where it forms feeding groups. The habitat in which Abudefduf nigrimargo can be found is also known to be inhabited by the related species Abudefduf vaigiensis and Abudefduf caudobimaculatus (previously recognized as the same as A. vaigiensis). The species reaches 12 cm (4.7 inches) in standard length.