Georgette Douwma / Picasso triggerfish (Rhinecanthus assasi) expels sand from gills after feeding, Red Sea.

Georgette Douwma / Picasso triggerfish (Rhinecanthus assasi) swimming over coral reef. Egypt, Red Sea.

Jeff Rotman / Picasso triggerfish (Rhinecanthus assasi) portrait, Red Sea, Egypt

Jeff Rotman / Checkerboard wrasse (Halichoeres hortulanus) and Picasso triggerfish (Rhinecanthus assasi) Sinai Peninsula, Red Sea, Egypt

Jeff Rotman / Picasso triggerfish (Rhinecanthus assasi) Sinai Peninsula, Red Sea, Egypt

GEORGETTE DOUWMA / Arabian picasso fish (Rhinecanthus assasi) fanning and guarding egg mass in nest. Red Sea

Jeff Rotman / Close up of the eye of a Picasso Triggerfish (Rhinecanthus assasi) Red Sea, Egypt

Jeff Rotman / Free diver observing Picasso / Lagoon triggerfish (Rhinecanthus aculeatus) on coral reef, Sinai, Egypt, Red Sea Model released Model released.