Found this guy at a site near Haad Chao Lao, Chantaburi Province, Thailand - depth 4m. I think it's some kind of Pseudoceros sp. - ID help please...
Apologies for poor quality of photo. The small single spot on the flatworm's head is not a grain of sand but is an actual colouration.
Apologies for poor quality of photo. The small single spot on the flatworm's head is not a grain of sand but is an actual colouration.