All Sea Slug & Nudibranch Species 61

Costasiella rubrolineata

M. Ichikawa, 1993

Aplysiopsis sp. 1

Hermaea sp. 2

Hermaea sp. 3

Hermaea sp. 4

Hermaea wrangeliae

(M. Ichikawa, 1993)

Cyerce blackburnae

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

Cyerce elegans

Bergh, 1870

Cyerce katiae

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

Cyerce nigricans

(Pease, 1866)

Cyerce sp.11

Cyerce trowbridgeae

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

Mourgona osumi

Hamatani, 1994

Mourgona sp. 2

Mourgona sp. 3

Mourgona sp. 4

Polybranchia jannae

Medrano, Krug, Gosliner, Biju Kumar & Á. Valdés, 2018

Polybranchia jensenae

Medrano, Krug, Gosliner, Biju Kumar & Á. Valdés, 2018

Polybranchia orientalis

(Kelaart, 1858)

Polybranchia samanthae

Medrano, Krug, Gosliner, Biju Kumar & Á. Valdés, 2018

Polybranchia spp.

Sohgenia palauensis

Hamatani, 1991

Sohgenia sp. 1

Placida babai

Ev. Marcus, 1982

Stiliger sp. 2

Stiliger sp. 5

Stiliger sp. 8

Stiliger sp.10

Ercolania cf. coerulea

Trinchese, 1892

Ercolania sp. 1