All Sea Slug & Nudibranch Species 506

Thuridilla sp. 6

Thuridilla sp. 7

Thuridilla sp. 8

Thuridilla sp.10

Thuridilla splendens

(Baba, 1949)

Bosellia sp. 1

Costasiella formicaria

(Baba, 1959)

Costasiella fridae

Fernández-Simón & Moles, 2023

Costasiella kuroshimae

M. Ichikawa, 1993

Costasiella paweli

M. Ichikawa, 1993

Costasiella sp. 1

Costasiella sp. 2

Costasiella sp. 3

Costasiella sp. 4

Costasiella sp. 5

Costasiella sp. 6

Costasiella sp. 7

Costasiella sp. 8

Costasiella usagi

M. Ichikawa, 1993

Costasiella vegae

M. Ichikawa, 1993

Panderevela hyllebergi

K. R. Jensen, 2021

Aplysiopsis nigra

(Baba, 1949)

Aplysiopsis sp. 1

Aplysiopsis toyamana

(Baba, 1959)

Hermaea noto

(Baba, 1959)

Hermaea sp. 1

Hermaea sp. 2

Hermaea sp. 3

Hermaea sp. 6

Cyerce blackburnae

K. Moreno, Gosliner, N. G. Wilson, Krug & Á. Valdés, 2025