Sea Slugs in Yaene, Hachijo Island 373

Chromodoris sp. 1

Chromodoris colemani

Rudman, 1982

Hexabranchus lacer

(Cuvier, 1804)

Ceratophyllidia sp. 1

Chromodoris sp. 7

Coryphellina exoptata

(Gosliner & Willan, 1991)

Sagaminopteron psychedelicum

Carlson & Hoff, 1974

Halgerda sp. 2

Siphopteron tigrinum

Gosliner, 1989

Trapania naeva

Gosliner & Fahey, 2008

Glossodoris hikuerensis

(Pruvot-Fol, 1954)

Aeolidiopsis ransoni

Pruvot-Fol, 1956

Tritonia sp. 5

Hypselodoris cerisae

Gosliner & R. F. Johnson, 2018

Halgerda carlsoni

Rudman, 1978

Halgerda willeyi

Eliot, 1904

Chromodoris annae

Bergh, 1877

Chromodoris strigata

Rudman, 1982

Phyllodesmium crypticum

Rudman, 1981

Micromelo barbarae

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

Siphopteron dumbo

Ong & Gosliner, 2017

Chromodoris aspersa

(A. A. Gould, 1852)

Chromodoris willani

Rudman, 1982

Siphopteron sp. 2

Hancockia sp. 4

Cyerce liliuokalaniae

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

Plocamopherus imperialis

Angas, 1864

Plocamopherus margaretae

Valles & Gosliner, 2006

Gymnodoris sp. 5

Glossodoris buko

S. B. Matsuda & Gosliner, 2018

Hypselodoris bullockii

(Collingwood, 1881)

Hypselodoris whitei

(A. Adams & Reeve, 1850)

Dermatobranchus fasciatus

Gosliner & Fahey, 2011

Elysia degeneri

Ostergaard, 1955

Rostanga sp. 5

Bornella hermanni

Angas, 1864

Halgerda labyrinthus

Donohoo & Gosliner, 2023

Ceratosoma bicolor

Baba, 1949

Bornella anguilla

S. Johnson, 1984

Diniatys dentifer

(A. Adams, 1850)

Odontoglaja guamensis

Rudman, 1978

Cyerce kikutarobabai

Hamatani, 1976

Cyerce goodheartae

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

Trapania euryeia

Gosliner & Fahey, 2008

Halgerda albocristata

Gosliner & Fahey, 1998

Chromodoris alcalai

Gosliner, 2021

Chromodoris lochi

Rudman, 1982

Glossodoris cf. cincta

(Bergh, 1888)

Ceratophyllidia sp. 3

Phyllidia exquisita

Brunckhorst, 1993

Tenellia sp.28

Phyllodesmium briareum

(Bergh, 1896)

Aplysia nigrocincta

E. von Martens, 1880

Elysia obtusa

Baba, 1938

Elysia lobata

A. A. Gould, 1852

Elysia tomentosa

K. R. Jensen, 1997

Cyerce bourbonica

Yonow, 2012

Gymnodoris okinawae

Baba, 1936

Halgerda dalanghita

Fahey & Gosliner, 1999

Goniobranchus rufomaculatus

(Pease, 1871)

Hypselodoris maculosa

(Pease, 1871)

Hypselodoris zephyra

Gosliner & R. F. Johnson, 1999

Madrella gloriosa

Baba, 1949

Janolus toyamensis

Baba & Abe, 1970

Samla bicolor

(Kelaart, 1858)

Phyllodesmium sp. 1

Martadoris sp. 2

Tenellia sp.42

Tenellia sp. 7

Phestilla viei

Mehrotra, Caballer & Chavanich, 2020

Ercolania sp.10

Tylodina sp. 1

Phyllidiella pustulosa

(Cuvier, 1804)

Siphopteron nigromarginatum

Gosliner, 1989

Oxynoe viridis

(Pease, 1861)

Elysia sp.16

Ercolania subviridis

(Baba, 1959)

Sacoproteus smaragdinus

(Baba, 1949)

Aegires exeches

Fahey & Gosliner, 2004

Gymnodoris citrina

(Bergh, 1877)

Halgerda diaphana

Fahey & Gosliner, 1999

Halgerda onna

Fahey & Gosliner, 2001

Halgerda tessellata

(Bergh, 1880)

Goniobranchus geometricus

(Risbec, 1928)

Hypselodoris sp.18

Hypselodoris decorata

(Risbec, 1928)

Dendrodoris carbunculosa

(Kelaart, 1858)

Melibe viridis

(Kelaart, 1858)

Cratena sp. 2

Phyllodesmium macphersonae

(Burn, 1962)

Siphopteron sp. 1

Phanerophthalmus lentigines

Austin, Gosliner & Malaquias, 2018

Siphopteron makisig

Ong & Gosliner, 2017

Bullina lineata

(J. E. Gray, 1825)

Ercolania sp. 2

Limenandra confusa

Carmona, Pola, Gosliner & Cervera, 2014

Tenellia sp.13

Janolus sp.11

Ercolania sp. 8

Tomoberthella martensi

(Pilsbry, 1896)

Babakina indopacifica

Gosliner, Gonzalez-Duarte & Cervera, 2007

Gastropteridae sp. 2

Metaruncina setoensis

(Baba, 1954)

Aplysia kurodai

(Baba, 1937)

Aplysia oculifera

A. Adams & Reeve, 1850

Petalifera ramosa

Baba, 1959

Oxynoe kylei

Krug, Berriman & Á. Valdés, 2018

Elysia sp. 7

Elysia trisinuata

Baba, 1949

Mourgona sp. 1

Pleurehdera sp. 1

Berthellina delicata

(Pease, 1861)

Pleurobranchus peronii

Cuvier, 1804

Kaloplocamus acutus

Baba, 1949

Kaloplocamus peludo

Vallès & Gosliner, 2006

Pelagella felis

(Baba, 1949)

Gymnodoris inornata

(Bergh, 1880)

Hiatodoris fellowsi

(Kay & D. K. Young, 1969)

Platydoris cruenta

(Quoy & Gaimard, 1832)

Rostanga orientalis

Rudman & Avern, 1989

Goniobranchus albopunctatus

Garrett, 1879

Goniobranchus sp. 1

Hypselodoris apolegma

(Yonow, 2001)

Dendrodoris tuberculosa

(Quoy & Gaimard, 1832)

Phyllidia scottjohnsoni

Brunckhorst, 1993

Dermatobranchus albus

(Eliot, 1904)

Marianina rosea

(Pruvot-Fol, 1930)

Caloria indica

(Bergh, 1896)

Cratena sp. 1

Facelina bourailli

(Risbec, 1928)

Favorinus tsuruganus

Baba & Abe, 1964

Bulbaeolidia alba

(Risbec, 1928)

Chromodoris sp. 3

Hypselodoris variobranchia

Gosliner & R. F. Johnson, 2018

Pteraeolidia semperi

(Bergh, 1870)

Gymnodoris spp.

Aeolidina spp.

Doridoidea spp.

Discodorididae sp. 5

Sclerodoris faninozi

Innabi, Stout & Á. Valdés, 2023

Halgerda sp. 3

Gymnodoris sp.31

Doris sp. 2

Mnestia girardi

(Audouin, 1826)

Hexabranchus sanguineus

(Rüppell & Leuckart, 1830)

Kaloplocamus sp. 6

Thuridilla vataae

(Risbec, 1928)

Siphopteron flavum

(Tokioka & Baba, 1964)

Diaphorodoris sp. 1

Bornella stellifera

(A. Adams & Reeve, 1848)

Colpodaspis thompsoni

G. H. Brown, 1979

Roxaniella multistriata

(Schepman, 1913)

Haloa japonica

(Pilsbry, 1895)

Niparaya regiscorona

(Bertsch, 1972)

Chelidonura amoena

Bergh, 1905

Aplysia sagamiana

Baba, 1949

Oxynoe kabirensis

Hamatani, 1980

Bosellia sp. 1

Elysia rufescens

(Pease, 1871)

Thuridilla carlsoni

Gosliner, 1995

Thuridilla splendens

(Baba, 1949)

Costasiella fridae

Fernández-Simón & Moles, 2023

Costasiella kuroshimae

M. Ichikawa, 1993

Ercolania boodleae

(Baba, 1938)

Hermaea sp. 2

Umbraculum umbraculum

([Lightfoot], 1786)

Kaloplocamus dokte

Vallès & Gosliner, 2006

Martadoris sp. 1

Bermudella japonica

(Baba, 1949)

Aegires petalis

Fahey & Gosliner, 2004

Gymnodoris impudica

(Rüppell & Leuckart, 1830)

Aldisa zavorensis

Tibiriçá, Pola & Cervera, 2017

Doris immonda

(Risbec, 1928)

Doriopsis pecten

(Collingwood, 1881)

Atagema spongiosa

(Kelaart, 1858)

Hallaxa indecora

(Bergh, 1905)

Ceratosoma sp. 1

Goniobranchus decorus

(Pease, 1860)

Goniobranchus kuniei

(Pruvot-Fol, 1930)

Ardeadoris angustolutea

(Rudman, 1990)

Dendrodoris nigra

(W. Stimpson, 1855)

Phyllidia ocellata

Cuvier, 1804

Phyllidia varicosa

Lamarck, 1801

Phyllidia larryi

(Brunckhorst, 1993)

Phyllidiella annulata

(J. E. Gray, 1853)

Phyllidiopsis cardinalis

Bergh, 1876

Phyllidiopsis fissurata

Brunckhorst, 1993

Phyllidiopsis xishaensis

(G.-Y. Lin, 1983)

Samla takashigei

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

Samla riwo

(Gosliner & Willan, 1991)

Cratena sp.11

Phyllodesmium magnum

Rudman, 1991

Trapania tigger

Smirnoff, Donohoo & Gosliner, 2022

Hydatina physis

(Linnaeus, 1758)

Elysia spp.

Murphydoris sp. 3

Niparaya sp. 2

Phyllidiidae spp.

Elysia sp.10

Siphopteron sp.12

Janolus sp. 7

Glossodoris sp. 4

Aplustrum amplustre

(Linnaeus, 1758)

Haminoeidae sp. 4

Chromodoris sp. 4

Ercolania endophytophaga

K. R. Jensen, 1999

Pruvotfolia sp. 5

Nihonbranchus horii

(Baba, 1960)

Limapontiidae spp.

Doriprismatica paladentata

(Rudman, 1986)

Liloa mongii

(Audouin, 1826)

Bornella pele

Pola, Rudman & Gosliner, 2009

Discodorididae spp.

Placida barackobamai

McCarthy, Krug & Á. Valdés, 2017

Eubranchus sp.30

Gymnodoris bicolor

(Alder & Hancock, 1864)

Bursatella ocelligera

(Bergh, 1902)

Aeolidina sp.17

Gymnodoris sp.43

Phyllodesmium sp. 8

Hypselodoris festiva

(A. Adams, 1861)

Bulla ampulla

Linnaeus, 1758

Atys semistriatus

Pease, 1860

Phanerophthalmus perpallidus

Risbec, 1928

Hermania orca

(Gosliner, 1988)

Biuve fulvipunctata

(Baba, 1938)

Chelidonura hirundinina

(Quoy & Gaimard, 1833)

Philinopsis gigliolii

(Tapparone Canefri, 1874)

Philinopsis speciosa

Pease, 1860

Gastropteron sp. 3

Aplysia argus

Rüppell & Leuckart, 1830

Aplysia juliana

Quoy & Gaimard, 1832

Dolabella auricularia

([Lightfoot], 1786)

Dolabrifera dolabrifera

(Rang, 1828)

Julia japonica

Kuroda & Habe, 1951

Julia zebra

Kawaguchi, 1981

Lobiger viridis

Pease, 1863

Elysia marginata

(Pease, 1871)

Polybranchia orientalis

(Kelaart, 1858)

Placida kevinleei

McCarthy, Krug & Á. Valdés, 2017

Stiliger sp. 1

Hermaea noto

(Baba, 1959)

Pleurobranchus albiguttatus

(Bergh, 1905)

Plocamopherus ceylonicus

(Kelaart, 1858)

Roboastra gracilis

(Bergh, 1877)

Goniodoridella borealis

Martynov, Sanamyan & Korshunova, 2015

Ceratodoris hiroi

(Baba, 1938)

Bermudella sp. 1

Trapania palmula

Gosliner & Fahey, 2008

Naisdoris sp. 1

Idaliadoris sp. 1

Aegires flores

Fahey & Gosliner, 2004

Aegires lemoncello

Fahey & Gosliner, 2004

Gymnodoris sp. 3

Aldisa albatrossae

Elwood, Á. Valdés & Gosliner, 2000

Doriopsis granulosa

Pease, 1860

Doris sugashimae

(Baba, 1998)

Halgerda brunneomaculata

Carlson & Hoff, 1993

Halgerda elegans

Bergh, 1905

Jorunna funebris

(Kelaart, 1858)

Platydoris inornata

Dorgan, Á. Valdés & Gosliner, 2002

Platydoris sanguinea

Bergh, 1905

Platydoris sp. 1

Rostanga lutescens

(Bergh, 1905)

Sclerodoris apiculata

(Alder & Hancock, 1864)

Actinocyclus verrucosus

Ehrenberg, 1831

Hallaxa cryptica

Gosliner & S. Johnson, 1994

Goniobranchus albonares

(Rudman, 1990)

Chromodoris sp. 6

Chromodoris magnifica

(Quoy & Gaimard, 1832)

Chromodoris orientalis

Rudman, 1983

Goniobranchus reticulatus

(Quoy & Gaimard, 1832)

Goniobranchus setoensis

(Baba, 1938)

Goniobranchus sp.16

Doriprismatica atromarginata

(Cuvier, 1804)

Mexichromis pusilla

(Bergh, 1874)

Hypselodoris infucata

(Rüppell & Leuckart, 1830)

Hypselodoris krakatoa

Gosliner & R. F. Johnson, 1999

Hypselodoris maritima

(Baba, 1949)

Diversidoris crocea

(Rudman, 1986)

Verconia decussata

(Risbec, 1928)

Verconia hongkongiensis

(Rudman, 1990)

Verconia norba

(Er. Marcus & Ev. Marcus, 1970)

Verconia purpurea

(Baba, 1949)

Verconia simplex

(Pease, 1871)

Verconia varians

(Pease, 1871)

Hypselodoris tryoni

(Garrett, 1873)

Thorunna florens

(Baba, 1949)

Thorunna halourga

R. F. Johnson & Gosliner, 2001

Dendrodoris arborescens

(Collingwood, 1881)

Dendrodoris krusensternii

(J. E. Gray, 1850)

Dendrodoris fumata

(Rüppell & Leuckart, 1830)

Dendrodoris sp. 1

Doriopsilla miniata

(Alder & Hancock, 1864)

Ceratophyllidia sp. 2

Phyllidiidae sp. 1

Phyllidiella granulata

Brunckhorst, 1993

Phyllidiopsis krempfi

Pruvot-Fol, 1957

Dermatobranchus fortunatus

(Bergh, 1888)

Dermatobranchus ornatus

(Bergh, 1874)

Dermatobranchus semilunus

Gosliner & Fahey, 2011

Dermatobranchus striatellus

Baba, 1949

Janolus indicus

(Eliot, 1909)

Janolus mirabilis

Baba & Abe, 1970

Notobryon bijecurum

Baba, 1937

Hancockia sp. 2

Launsina tanyae

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

Cratena simba

Edmunds, 1970

Favorinus japonicus

Baba, 1949

Moridilla brockii

Bergh, 1888

Phidiana anulifera

(Baba, 1949)

Phyllodesmium iriomotense

Baba, 1991

Aeolidiopsis harrietae

Rudman, 1982

Tenellia puellula

(Baba, 1955)

Tenellia sp.11

Tenellia sp. 2

Phestilla melanobrachia

Bergh, 1874

Phestilla minor

Rudman, 1981

Diaphorodoris sp. 2

Tenellia nakapila

A. Y. Kim & Gosliner, 2024

Hypselodoris lacuna

Gosliner & R. F. Johnson, 2018

Murphydoris maracabranchia

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

Cratena sp. 3

Phyllodesmium undulatum

E. Moore & Gosliner, 2014

Hydatina zonata

([Lightfoot], 1786)

Janolus sp. 6

Atagema sp. 1

Anteaeolidiella takanosimensis

(Baba, 1930)

Elysia sp.14

Atagema sp. 2

Atagema papillosa

(Risbec, 1928)

Eubranchus sp.10

Trapania sp.13

Baeolidia variabilis

Carmona, Pola, Gosliner & Cervera, 2014

Chromodorididae spp.

Tenellia sp.67

Tenellia sp.54

Tenellia sp.30

Eubranchus cf. leopoldoi

Caballer, Ortea & Espinosa, 2001

Tenellia sp.55

Berthella caledonica

(Risbec, 1928)

Elysia sp.26

Vellicolla muscaria

(A. A. Gould, 1859)

Doridoidea sp. 3

Vellicolla okamotoi

(Habe, 1952)

Stiliger sp.11

Glossodoris sp. 3

Gymnodoris sp.27

Oxynoe sp. 3

Colpodaspis sp. 5

Abronica payaso

A. Y. Kim & Gosliner, 2024

Tritonia sp. 8

Baeolidia sp. 4

Aplysia sp. 1

Aplysia japonica

G. B. Sowerby II, 1869

Rostanga cf. bifurcata

Rudman & Avern, 1989

Bullina vitrea

Pease, 1860

Smaragdinella sieboldi

A. Adams, 1864

Hermaea sp. 6

Petalifera sp. 1

Jorunna spp.

Hancockia sp. 5

Hexabranchus giganteus

Tibiriçá, Pola & Cervera, 2023

Goniodoridella geminae

Paz-Sedano, Ekimova, Smirnoff, Gosliner & Pola, 2023

Nembrothinae spp.

Chromodoris sp.13

Edenttellina pseudochloris

(Kay, 1964)

Doridoidea sp.11

Aegires sp. 4

Biuve sp. 1

Discodorididae sp.25

Atagema sp. 6

Discodorididae sp.27