Sea Slugs in Sokodo(Sanmata), Hachijo Island 256

Gastropteridae sp. 2

Hiatodoris fellowsi

(Kay & D. K. Young, 1969)

Oxynoe viridis

(Pease, 1861)

Siphopteron dumbo

Ong & Gosliner, 2017

Chromodoris sp. 7

Phyllodesmium briareum

(Bergh, 1896)

Hexabranchus lacer

(Cuvier, 1804)

Gymnodoris okinawae

Baba, 1936

Halgerda diaphana

Fahey & Gosliner, 1999

Tenellia sp.42

Chromodoris colemani

Rudman, 1982

Phanerophthalmus perpallidus

Risbec, 1928

Volvatella ayakii

Hamatani, 1972

Cyerce bourbonica

Yonow, 2012

Halgerda sp. 2

Halgerda willeyi

Eliot, 1904

Phyllidiella annulata

(J. E. Gray, 1853)

Edenttellina pseudochloris

(Kay, 1964)

Halgerda carlsoni

Rudman, 1978

Siphopteron tigrinum

Gosliner, 1989

Elysia sp.16

Polybranchia orientalis

(Kelaart, 1858)

Plocamopherus imperialis

Angas, 1864

Halgerda tessellata

(Bergh, 1880)

Platydoris cruenta

(Quoy & Gaimard, 1832)

Eubranchus sp. 8

Tenellia sp. 4

Chelidonura hirundinina

(Quoy & Gaimard, 1833)

Siphopteron nigromarginatum

Gosliner, 1989

Petalifera ramosa

Baba, 1959

Lobiger viridis

Pease, 1863

Oxynoe kabirensis

Hamatani, 1980

Bosellia sp. 1

Elysia nealae

Ostergaard, 1955

Elysia tomentosa

K. R. Jensen, 1997

Cyerce liliuokalaniae

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

Pleurobranchus peronii

Cuvier, 1804

Pelagella felis

(Baba, 1949)

Jorunna funebris

(Kelaart, 1858)

Chromodoris annae

Bergh, 1877

Chromodoris lochi

Rudman, 1982

Glossodoris buko

S. B. Matsuda & Gosliner, 2018

Hypselodoris decorata

(Risbec, 1928)

Dermatobranchus fasciatus

Gosliner & Fahey, 2011

Melibe viridis

(Kelaart, 1858)

Phyllodesmium macphersonae

(Burn, 1962)

Bulbaeolidia alba

(Risbec, 1928)

Phestilla minor

Rudman, 1981

Pelagella albopunctata

Paz-Sedano, Smirnoff, Gosliner & Pola, 2023

Gymnodoris spp.

Bornella hermanni

Angas, 1864

Elysia sp.14

Elysia sp.10

Limapontiidae spp.

Catriona sp. 2

Diaphorodoris sp. 1

Babakina indopacifica

Gosliner, Gonzalez-Duarte & Cervera, 2007

Bulla vernicosa

A. A. Gould, 1859

Aplysia gigantea

G. B. Sowerby II, 1869

Aplysia oculifera

A. Adams & Reeve, 1850

Stylocheilus striatus

(Quoy & Gaimard, 1832)

Julia japonica

Kuroda & Habe, 1951

Elysia rufescens

(Pease, 1871)

Thuridilla carlsoni

Gosliner, 1995

Stiliger sp. 1

Sacoproteus smaragdinus

(Baba, 1949)

Hermaea noto

(Baba, 1959)

Berthellina delicata

(Pease, 1861)

Plocamopherus ceylonicus

(Kelaart, 1858)

Martadoris sp. 1

Okenia rhinorma

Rudman, 2007

Trapania euryeia

Gosliner & Fahey, 2008

Trapania naeva

Gosliner & Fahey, 2008

Aegires lemoncello

Fahey & Gosliner, 2004

Gymnodoris sp. 1

Aldisa zavorensis

Tibiriçá, Pola & Cervera, 2017

Halgerda albocristata

Gosliner & Fahey, 1998

Tayuva coerulescens

(Bergh, 1888)

Rostanga orientalis

Rudman & Avern, 1989

Chromodoris aspersa

(A. A. Gould, 1852)

Chromodoris sp. 1

Chromodoris strigata

Rudman, 1982

Chromodoris willani

Rudman, 1982

Glossodoris cf. cincta

(Bergh, 1888)

Glossodoris sp. 1

Doriprismatica tibboeli

(Á. Valdés & M. J. Adams, 2005)

Hypselodoris bullockii

(Collingwood, 1881)

Hypselodoris whitei

(A. Adams & Reeve, 1850)

Dendrodoris nigra

(W. Stimpson, 1855)

Phyllidiopsis krempfi

Pruvot-Fol, 1957

Notobryon bijecurum

Baba, 1937

Embletonia gracilis

Risbec, 1928

Coryphellina exoptata

(Gosliner & Willan, 1991)

Cratena sp. 1

Facelina bilineata

Y. Hirano & M. Ito, 1998

Phyllodesmium crypticum

Rudman, 1981

Tenellia sp. 2

Siphopteron sp. 1

Elysia degeneri

Ostergaard, 1955

Hypselodoris variobranchia

Gosliner & R. F. Johnson, 2018

Pteraeolidia semperi

(Bergh, 1870)

Phyllodesmium sp. 1

Phyllodesmium acanthorhinum

E. Moore & Gosliner, 2014

Janolus sp. 5

Aldisa sp. 3

Spinoaglaja sp. 1

Aplustrum amplustre

(Linnaeus, 1758)

Tenellia sp.13

Haminoeidae sp. 4

Janolus sp.11

Tritonia sp. 5

Halgerda labyrinthus

Donohoo & Gosliner, 2023

Tenellia sp.55

Elysia sp.23

Elysia sp.26

Doriprismatica paladentata

(Rudman, 1986)

Dendrodoris sp. 3

Gymnodoris sp.27

Oxynoe sp. 3

Scyllaea pelagica

Linnaeus, 1758

Tenellia sp.78

Gymnodoris bicolor

(Alder & Hancock, 1864)

Doris sp. 2

Doridoidea sp.15

Discodorididae sp.24

Unknown Species

Tylodina sp. 1

Thuridilla vataae

(Risbec, 1928)

Phyllidiella pustulosa

(Cuvier, 1804)

Phyllidia willani

Brunckhorst, 1993

Bulla ampulla

Linnaeus, 1758

Hamineobulla kawamurai

Habe, 1950

Spinoaglaja orientalis

(Baba, 1949)

Niparaya regiscorona

(Bertsch, 1972)

Chelidonura amoena

Bergh, 1905

Biuve fulvipunctata

(Baba, 1938)

Philinopsis speciosa

Pease, 1860

Sagaminopteron psychedelicum

Carlson & Hoff, 1974

Siphopteron brunneomarginatum

(Carlson & Hoff, 1974)

Metaruncina setoensis

(Baba, 1954)

Aplysia kurodai

(Baba, 1937)

Aplysia nigrocincta

E. von Martens, 1880

Aplysia sagamiana

Baba, 1949

Bursatella leachii

Blainville, 1817

Dolabrifera dolabrifera

(Rang, 1828)

Notarchus indicus

Schweigger, 1820

Elysia lobata

A. A. Gould, 1852

Elysia trisinuata

Baba, 1949

Thuridilla livida

(Baba, 1955)

Costasiella fridae

Fernández-Simón & Moles, 2023

Ercolania boodleae

(Baba, 1938)

Ercolania subviridis

(Baba, 1959)

Stiliger aureomarginatus

K. R. Jensen, 1993

Umbraculum umbraculum

([Lightfoot], 1786)

Pleurobranchaea japonica

Thiele, 1925

Polycera sp. 1

Kaloplocamus dokte

Vallès & Gosliner, 2006

Goniodoridella borealis

Martynov, Sanamyan & Korshunova, 2015

Bermudella japonica

(Baba, 1949)

Gymnodoris citrina

(Bergh, 1877)

Aldisa albatrossae

Elwood, Á. Valdés & Gosliner, 2000

Atagema intecta

(Kelaart, 1858)

Atagema spongiosa

(Kelaart, 1858)

Carminodoris grandiflora

(Pease, 1860)

Paradoris tsurugensis

Baba, 1986

Platydoris sp. 1

Rostanga sp. 2

Thordisa oliva

J. M. Chan & Gosliner, 2007

Miamira sinuata

(van Hasselt, 1824)

Chromodoris sp.14

Goniobranchus albonares

(Rudman, 1990)

Chromodoris alcalai

Gosliner, 2021

Chromodoris orientalis

Rudman, 1983

Goniobranchus setoensis

(Baba, 1938)

Glossodoris rufomarginata

(Bergh, 1890)

Hypselodoris maritima

(Baba, 1949)

Thorunna daniellae

(Kay & D. K. Young, 1969)

Thorunna halourga

R. F. Johnson & Gosliner, 2001

Dendrodoris carbunculosa

(Kelaart, 1858)

Dendrodoris krusensternii

(J. E. Gray, 1850)

Dendrodoris fumata

(Rüppell & Leuckart, 1830)

Dendrodoris sp. 1

Ceratophyllidia sp. 3

Ceratophyllidia sp. 2

Phyllidia exquisita

Brunckhorst, 1993

Phyllidia varicosa

Lamarck, 1801

Phyllidiopsis annae

Brunckhorst, 1993

Dermatobranchus fortunatus

(Bergh, 1888)

Notobryon wardi

Odhner, 1936

Melibe papillosa

(de Filippi, 1867)

Marionia sp. 1

Doto japonica

Odhner, 1936

Samla takashigei

Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, H. Saito, Lundin, Schrödl & Picton, 2017

Samla riwo

(Gosliner & Willan, 1991)

Launsina tanyae

Ekimova, Carmona, Mikhlina, Grishina, Stanovova, Schepetov, Hoover, De Souza-Canal, K. O. Kuznetsov & Á. Valdés, 2026

Eubranchus echizenicus

Baba, 1975

Eubranchus inabai

Baba, 1964

Cratena sp.11

Favorinus japonicus

Baba, 1949

Favorinus tsuruganus

Baba & Abe, 1964

Sakuraeolis enosimensis

(Baba, 1930)

Setoeolis inconspicua

(Baba, 1938)

Pruvotfolia sp. 3

Limenandra rosanae

Carmona, Pola, Gosliner & Cervera, 2014

Baeolidia japonica

Baba, 1933

Tenellia anulata

(Baba, 1949)

Tenellia diversicolor

(Baba, 1975)

Tenellia puellula

(Baba, 1955)

Phanerophthalmus lentigines

Austin, Gosliner & Malaquias, 2018

Siphopteron sp. 2

Siphopteron makisig

Ong & Gosliner, 2017

Micromelo barbarae

Feliciano, Malaquias, Stout, Brenzinger, Gosliner & Á. Valdés, 2021

Dermatobranchus spp.

Gastropteron sp. 4

Tenellia sp. 6

Aeolidina spp.

Jorunna parva

(Baba, 1938)

Tritoniopsis cf. frydis

Avaldesia albomacula

(J. M. Chan & Gosliner, 2007)

Tenellia sp.20

Tenellia sp.21

Glossodoris sp. 4

Doridoidea spp.

Baeolidia variabilis

Carmona, Pola, Gosliner & Cervera, 2014

Tenellia sp.54

Tenellia sp.30

Discodorididae sp. 5

Tenellia sp.56

Murphydoris puncticulata

Paz-Sedano, Smirnoff, Candás, Gosliner & Pola, 2022

Pruvotfolia sp. 5

Berthella caledonica

(Risbec, 1928)

Nihonbranchus horii

(Baba, 1960)

Tenellia sp.28

Janolus sp.13

Ceratosoma bicolor

Baba, 1949

Tenellia sp. 7

Phestilla goniophaga

Hu, Zhang, Yiu, Xie & Qiu, 2020

Tritonia sp. 4

Placida daguilarensis

K. Jensen, 1990

Goniodoridella sp.14

Glossodoris sp. 3

Discodorididae spp.

Colpodaspis sp. 5

Placida barackobamai

McCarthy, Krug & Á. Valdés, 2017

Baeolidia sp. 4

Eubranchus sp.30

Smaragdinella sieboldi

A. Adams, 1864

Eubranchus sp.34

Mnestia girardi

(Audouin, 1826)

Micromelo guamensis

(Quoy & Gaimard, 1825)

Aplysiidae spp.

Hexabranchus sanguineus

(Rüppell & Leuckart, 1830)

Doridoidea sp.11

Doridoidea sp.13

Anteaeolidiella sp. 3

Phyllodesmium sp. 8