White Dorid Nudibranch, Hypselodoris sp., Bali, Indonesia

Pink Dorid Nudibranch, Hypselodoris bullockii, Bali, Indonesia

Pink Dorid Nudibranch, Hypselodoris bullockii, Bali, Indonesia

Warty Nurdibranch, Phylidiella pustulosa, Kai Islands, Moluccas, Indonesia

Dorid Nudibranch, Chromodoris magnifa, Komodo National Park, Indonesia

Dorid Nudibranch, Mexichromis multituberculata, Ambon, Moluccas, Indonesia

White Dorid Nudibranch, Chromodoris lochi, Florida Islands, Solomon Islands

Neon Sea Slug, Thecacera picta, Triton Bay, West Papua, Indonesia

An Imperial commensal shrimp (Periclimenes imperator), photographed at night on the Spanish dancer nudibranch (Hexabranchus sanguineus), that it calls home, Philippines

Swimming Flatworm, Pseudoceros spec., Short Dropoff, Micronesia, Palau

Swimming Flatworm, Pseudoceros spec., Short Dropoff, Micronesia, Palau

Mediterranean Dorid Slug, Hypselodoris elegans, Tamariu, Costa Brava, Mediterranean Sea, Spain

violet snail or violet shell a common purple snail floating on a raft of bubbles and feeding on a Portuguese man-of-war Physalia physalis Hawaii USA