Eared Sea Hare (Dolabella auricularia) タツナミガイ – size 25cmThis Eared Sea Hare was hard to spot....

Gold Lace Nudibranch (Halgerda terramtuentis)The Gold Lace Nudibranch is endemic to Hawaii. It is a ...

Yellow-margined Spanish Dancer (Hexabranchus aureomarginatus) size 20cmThe Yellow-margined Spanish D...

Red-margined Spanish Dancer (Hexabranchus sandwichensis) size 30cmThe Red-margined Spanish Dancer is...

White Margin Nudibranch (Glossodoris rufomarginata) キャラメルウミウシ – Brown Margin Glossodoris ̵...

Sea Hare (Aplysia japonica) クロヘリアメフラシThere is a wide variation in color of Sea Hares, Aplysia japoni...

Redline Flabellina (Coryphellina rubrolineata) セスジミノウミウシA Redline Flabellina working on a hydroid. T...

Dwarf Sea Hare (Aplysia sp.) アメフラシThis is a very small Sea Hare. It looked like Aplysia parvula whic...

Blue Swallowtail Slug (Chelidonura hirundinina) ニシキツバメガイThe Blue Swallotail Slug is a type of Headsh...

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

Phyllidia coelestis (ソライロイボウミウシ)Phyllidia coelestis is a type of a Fried Egg Nudibranch. Amami 2024 ...

Sea Hare (Aplysia sp.?) Noto 2014 Sea Hare grazing on seaweed. Noto 2014

Lovely Headshield Slug (Chelidonura amoena) コナユキツバメガイLovely Headshield Slugs are a type of Headshiel...

Blue Dragon Nudibranch (Pteraeolidia sp.) ムカデミノウミウシ (size 22cm)Both (Pteraeolidia semperi) and (Pter...

Bornella anguilla ゴシキユビウミウシBornella anguilla is a very colorful Nudibranch that can swim like an eel...

Streaked Chromodoris (Chromodoris strigata) シボリイロウミウシI think this is a Chromodoris strigata. If anyo...

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

Festive Nudibranch (Hypselodoris festiva) アオウミウシThevFestive Nudibranch is a small colorful nudibranc...

Fried-egg Nudibranch (Phyllidia varicosa?) タテヒダイボウミウシ (size 10cm)There are several similar species t...

Gloomy Nudibranch (Tambja morosa) アオスジリュウグウウミウシ (size 7cm)The gills look like a crown making this bl...

Oriental Nudibranch (Chromodoris orientalis) シロウミウシ also White spotted sea slug (size 4cm) An Orient...

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

Colorful Hypselodoris (Hypselodoris infucata) シモフリイロウミウシ The Colorful Hypselodoris is a colorful nud...