All Sea Slug & Nudibranch Species 544

Elysia sp. 8

Elysia sp.10

Elysia sp.17

Elysia sp.36

Elysia thompsoni

K. R. Jensen, 1993

Elysia aowthai

Mehrotra, Caballer, C. M. Scott, Sp. Arnold, Monchanin & Chavanich, 2020

Elysia cf. japonica

Eliot, 1913

Thuridilla carlsoni

Gosliner, 1995

Thuridilla coerulea

(Kelaart, 1858)

Thuridilla hoffae

Gosliner, 1995

Thuridilla lineolata

(Bergh, 1905)

Thuridilla livida

(Baba, 1955)

Thuridilla multimarginata

Gosliner, 1995

Thuridilla neona

Gosliner, 1995

Thuridilla sp. 1

Thuridilla sp.11

Thuridilla undula

Gosliner, 1995

Thuridilla vataae

(Risbec, 1928)

Thuridilla ratna

(Er. Marcus, 1965)

Thuridilla sp. 6

Thuridilla sp. 7

Thuridilla splendens

(Baba, 1949)

Plakobranchus papua

Meyers-Muñoz & van der Velde, 2016

Costasiella formicaria

(Baba, 1959)

Costasiella fridae

Fernández-Simón & Moles, 2023

Costasiella kuroshimae

M. Ichikawa, 1993

Costasiella paweli

M. Ichikawa, 1993

Costasiella rubrolineata

M. Ichikawa, 1993

Costasiella sp. 1

Costasiella sp. 2