the area is dotted with a rich biodiversity of varying aquatic species; the bank is populated sea floor and mid-oceanic schools of azores chromis ("chromis limbata"), blacktail comber ("serranus atricauda"), guinean puffer ("sphoeroides marmoratus"), mediterranean rainbow wrasse ("coris julis"), ornate wrasse ("thalassoma pavo"), salema porgy ("sarpa salpa") and mediterranean parrotfish ("sparisoma cretense"). at depths are frequently visible needlefish ("belonidae"), o lírios, the large atlantic goliath grouper ("epinephelus itajara"), schools of giant oceanic manta ray ("manta birostris"), dolphins and white-tip sharks, known in the azores as "marracho".