The chevron butterflyfish (Chaetodon trifascialis), also known as chevroned butterflyfish, triangulate butterflyfish or V-lined butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It has a wide Indo-Pacific distribution (from Wikipedia entry). This sample of a male individual found in the Red Sea near Saudi Arabia was procured by Jessica Nowicki, David Ramirez, and Lauren O'Connell to generate a high-quality reference genome for a neuroscience project and the Vertebrate Genomes Project (VGP). Sequencing and genome assembly were conducted at the Vertebrate Genome Lab (VGL) at the Rockefeller University, led by Erich D. Jarvis, Giulio Formenti, and Jennifer Balacco.