Anna’s Chromodoris (Chromodoris annae) アンナウミウシ also Anna’s magnificent sea slug size 5cm...

Tiger Flatworm (Pseudobiceros dimidiatus) There seems to be two types to this species. The one ...

Gold Spotted Flatworm (Thysanozoon nigropapillosum) ヨイミヤミノヒラムシI found this Gold Spotted Flatworm in ...

Phyllidia coelestis is a type of a Fried Egg Nudibranch. A closer look at the head of Phyllidia coel...

Fuchsia Flatworm (Pseudoceros ferrugineus) Small colorful look a little like nudibranchs they are fl...

Sea Hare (Aplysia sp.?) Noto Sea Hare grazing on seaweed. Noto

Chelidonura amoena are a type of Headshield Slug. They are carnivorous and eat worms and other creat...

Blue Dragon Nudibranch (Pteraeolidia ianthina) is one of the more common nudibranchs. Enoshima This ...

Bornella anguilla is a very colorful Nudibranch that can swim like an eel. I found two of these clos...

Chromodoris strigata? I think this is a Chromodoris strigata. If anyone knows for sure let me know. ...

A Sea Rose is an egg mass from a Nudibranch. The Spanish Dancer Nudibrach has eggs that look just li...

Festive Nudibranch (Hypselodoris festiva) is a small colorful nudibranch. There are other nudibranch...

Fried-egg Nudibranch (Phyllidia varicosa?)There are several similar species to this so I am not quit...

Gloomy Nudibranch (Tambja morosa) the gills look like a crown making this black and blue nudibranch ...

This is Chromodoris orientalis. I found this while snorkeling at Enoshima. Another picture of the sa...

Pustulose Nudibranch (Phyllidiella pustulosa) コイボウミウシI believe these are all Pustulose Nudibranchs (...

Hypselodoris infucata is colorful nudibranch. They are found from the Mediterranean to Hawaii. ...