Hydatina physis (Linnaeus, 1758) Brown-line Paperbubble Mating

Hydatina physis (Linnaeus, 1758) Brown-line Paperbubble Mating

    Photographed by Linda Ianniello while SCUBA diving at night, Puerto Galera, Oriental Mindoro, Philippines. Digital image copyright 2015 by Linda Ianniello.