An undescribed species of Roa at the California Academy of Sciences. Note the brown pelvic fin and white spine. Photo credit: Lemon TYK. Roa is a seldom seen and poorly known genus of butterflyfish. With only four taxonomically described species, the genus has just about as many undescribed [...]
Roa excelsa. The pinnacle of butterflyfish perfection. Nestled within the family Chaetodontidae is a complex of butterflyfish with a particular proclivity for deep reefs in the mesophotic twilight zone. They share a pattern of alternating broad brown and white bands, and possess a distinctive [...]
