A beautiful nudibranch (Halgerda batangas) crawls on the sandy seafloor of Lembeh Strait, Indonesia. Lembeh Strait is known for its diverse array of bizarre marine organisms.

animal animal behavior animal markings animal patterns animal themes animals in the wild color image day discodorididae dorid nudibranch extreme close up front view gastropod halgerda halgerda batangas horizontal indo pacific ocean indonesia invertebrate lembeh strait macro marine biology mollusk nature no people north sulawesi nudibranch one animal opisthobranch orange outdoors pattern photography rhinophore science sea sea life sea slugs southeast asia spotted striped sulawesi undersea underwater wilderness wildlife zoology