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Acteonoidea
Cephalaspidea
Thecosomata
Gymnosomata
Anaspidea
Sacoglossa
Tylodinoidea
Pleurobrancho-
      morpha
Nudibranchia
     Doridacea
     Dendronotacea
     Arminacea
     Aeolidacea
  

 
Combined Thumbnails

Actaeonidae

 

Pupa pudica

Pupa tessellata

Pupa
sp. #1
 
Bullinidae
 

Bullina lineata

Bullina rubeopunctata

Bullina vitrea

Aplustridae
 

Hydatina amplustre

Hydatina physis

Hydatina zonata

Micromelo undatus

Tornatinidae
 

Acteocina hawaiensis

Acteocina sandwicensis

Acteocina sp. #1

Acteocina sp. #2





Acteocina sp. #3




Cylichnidae
 

Cylichna analogia

Cylichna biplicata

Eocylichna cf. venustula

Roxania(?) calcarea

Scaphandridae
 

Scaphander alatus

Scaphander pustulosus

Scaphander takedai

Retusidae
 



Retusa sp. #1

Retusa sp. #2


Mnestiidae
 


Ventomnestia villica


Colinatydidae
 


Colinatys sp. #1


Diaphanidae
 


Diaphana(?) sp. #2


Philinidae
 

Philine orca

Philine pittmani

Philine puka

Philine rubrata





Philine(?) sp. #2

Philine sp. #3

Philine sp. #4

Philine sp. #5
 
Colpodaspididae
 


Colpodaspis thompsoni

Colpodaspis(?) sp. #1


Gastropteridae
 

Enotepteron rosewateri

Gastropteron minutum

Gastropteron sp. #1


Sagaminopteron pohnpei

 


Sagaminopteron psychedelicum

Siphopteron flavum

Siphopteron quadrispinosum

Siphopteron sp. #1

Aglajidae 
 

Biuve cf. fulvipunctata

Biuve sp. #4

Chelidonura alisonae

Chelidonura hirundinina





Chelidonura(?) sp. #3

Chelidonura(?) sp. #5

Chelidonura sp. #6

Nakamigawaia spiralis





Nakamigawaia sp. #2

Niparaya cf. regiscorona

Odontoglaja sp. #1

Philinopsis speciosa





Spinoaglaja orientalis

Spinoaglaja sp. #3

Tubulophilinopsis pilsbryi

Tubulophilinopsis sp. #1

Haminoeidae
 

Aliculastrum debilis

Atys kuhnsi

Atys pittmani

Atys semistriatus





Atys ukulele

Atys sp. #5

Diniatys dentifer

Diniatys dubius





Hamineobulla(?) kawamurai

Haminoea cymbalum

Haminoea cf. natalensis

Haminoea ovalis





Haminoea sp. #1

Haminoea sp. #5

Liloa curta

Liloa porcelana





Liloa sp. #2

Limulatys muscarius

Phanerophthalmus anettae

Phanerophthalmus cf. paulayi





Phanerophthalmus perpalidus

Smaragdinella calyculata

un. sp. #2

un. sp. #3





un. sp. #4

un. sp. #5

un. sp. #7

un. sp. #9





un. sp. #10

un. sp. #13

un. sp. #14

un. sp. #15

Bullidae
 


Bulla peasiana

Bulla vernicosa


Runcinidae 
 


Runcina sp. #1

Runcina sp. #2


Limacinidae
 

Heliconoides inflatus

Limacina bulimoides

Limacina lesueuri

Limacina trochiformis

Cavolinidae
 
no photo
available
Cavolinia gibbosa

Cavolinia globulosa

Cavolinia inflexa

Cavolinia tridentata(PNH)





Cavolinia uncinata(PNH)

Clio cuspidata

Clio pyramidata

Clio recurva(PNH)





Creseis acicula
no photo
available
Creseis virgula

Cuvierina columnella

Diacavolinia aff. longirostris





Diacavolinia pacifica

Diacria danae

Diacria major

Diacria schmidti




no photo
available
Diacria trispinosa

Styliola subula


 
Cymbuliidae

 


Corolla spectabilis


Cliopsidae
 


Cliopsis krohni


Aplysiidae
 

Aplysia argus

Aplysia elongata

Aplysia juliana

Aplysia oculifera





Aplysia sp. #1

Dolabella auricularia

Dolabrifera dolabrifera

Dolabrifera sp. #1





Notarchus indicus

Petalifera ramosa

Phyllaplysia cf. lafonti

Stylocheilus longicauda





Stylocheilus striatus

Stylocheilus(?) sp. #1



Cylindrobullidae
 

Cylindrobulla sp. #1
no photo
available
Volvatella pyriformis

Volvatella ventricosa

Volvatella vigourouxi

Juliidae
 

Berthelinia pseudochloris

Julia exquisita

Julia zebra

Julia sp. #1





Julia sp. #2

un. sp. #1

un. sp. #2


Oxynoidae
 


Lobiger viridis
no photo
available
Oxynoe viridis


Plakobranchidae
 

Bosellia sp. #1

Elysia degeneri

Elysia lobata

Elysia marginata





Elysia nealae

Elysia obtusa

Elysia pusilla

Elysia rufescens





Elysia tomentosa

Elysia
cf. trisinuata

Elysia
sp. #2

Elysia
sp. #4





Elysia
sp. #5

Elysia
sp. #6

Elysia
sp. #7

Elysia
sp. #9





Elysia
sp. #10

Elysia
sp. #12

Plakobranchus ocellatus

Thuridilla carlsoni





Thuridilla
kathae

Thuridilla multimarginata

Thuridilla neona

Thuridilla sp. #3

Limapontiidae
 

Costasiella formicaria

Costasiella kuroshimae

Costasiella sp. #1

Ercolania cf. coerulea





Ercolania sp. #3

Ercolania sp. #7

Ercolania sp. #8

Ercolania(?) sp. #9





Placida barackobamai

Placida kevinleei

Placida sp. #1

Placida sp. #2





Sacoproteus nishae

Sacoproteus smaragdinus

Sacoproteus thomasleei

Stiliger sp. #4





Stiliger sp. #6

Stiliger sp. #10


no photo

available
Stiliger(?) sp. #11

Stiliger sp. #12

Hermaeidae
 

Hermaea sp. #1

Caliphyllidae
 

Caliphylla sp. #1

Cyerce bourbonica

Cyerce elegans


no photo

available
Cyerce nigricans





Cyerce pavonina

Mourgona sp. #1

Mourgona sp. #2

Mourgona(?) sp. #3





Mourgona sp. #4

Polybranchia jensenae

Polybranchia samanthae


Tylodinidae
 

Tylodina sp. #1
 
Umbraculidae
 

Umbraculum sp. #1

Umbraculum sp. #2

Umbraculum sp. #3
   
Pleurobranchidae
 

Berthella martensi

Berthella stellata

Berthella sp. #1

Berthellina delicata





Berthellina sp. #1

Euselenops luniceps

Pleurehdera haraldi

Pleurobranchaea sp. #1





Pleurobranchella nicobarica

Pleurobranchus forskalii

Pleurobranchus grandis

Pleurobranchus mamillatus





Pleurobranchus cf. peronii

Pleurobranchus varians

un. sp. #2

un. sp. #3
 
Dorididae
 

Doris granulosa

Doris immonda

Doris nucleola

Doris pecten





Doris viridis

Doris sp. #1

Doris sp. #2


Cadlinidae
 

Aldisa pikokai

Aldisa sp. #1

Aldisa sp. #2

Discodorididae
 

Asteronotus cespitosus

Atagema echinata

Atagema intecta

Atagema cf. osseosa





Atagema scabriuscula

Atagema(?) sp. #2

Atagema sp. #18

Carminodoris bifurcata





Carminodoris cf. flammea

Carminodoris grandiflora

Carminodoris sp. #2

Diaulula sp. #1





Discodoris cebuensis

Discodoris lilacina

Geitodoris sp. #1

Halgerda dalanghita





Halgerda paliensis

Halgerda terramtuentis

 Jorunna alisonae

Jorunna funebris





Jorunna cf. ramicola

Paradoris sp. #1

Paradoris sp. #4

Paradoris sp. #7





Peltodoris fellowsi

Peltodoris rubra

Platydoris formosa

Platydoris cf. inornata





Platydoris sp. #1

Platydoris sp. #2

Platydoris sp. #3

Rostanga bifurcata





Rostanga lutescens

Rostanga sp. #1

Rostanga(?) sp. #3

Rostanga sp. #4





Sclerodoris rubicunda

Sclerodoris sp. #1

Sclerodoris sp. #2

Sebadoris fragilis




no photo
available
Sebadoris nubilosa

Thordisa albomacula

Thordisa cf. oliva
no photo
available
Thordisa setosa





Thordisa sp. #2

Thordisa sp. #4

Thordisa sp. #5

Thordisa sp. #13





Thordisa sp. #14

un. sp. #2

un. sp. #4

un. sp. #5





up. sp.  #8

un. sp. #12

un. sp. #15

un. sp. #17





un. sp. #18




Actinocyclidae
 


Actinocyclus verrucosus

Hallaxa cf. fuscescens

Hallaxa iju

Hallaxa cf. translucens
 
Chromodorididae
 

Ardeadoris angustolutea

Ardeadoris poliahu

Ardeadoris scottjohnsoni

Ardeadoris tomsmithi





Ardeadoris sp. #2

Ardeadoris(?) sp. #4

Ceratosoma tenue

Ceratosoma(?) sp. #1





Ceratosoma sp. #2

Chromodoris aspersa

Chromodoris sp. #2

Diversidoris flava





Doriprismatica atromarginata

Glossodoris rufomarginata

Goniobranchus albopunctatus

Goniobranchus albopustulosus





Goniobranchus decorus

Goniobranchus petechialis

Goniobranchus verrieri

Goniobranchus vibratus





Goniobranchus sp. #1

Goniobranchus sp. #5

Goniobranchus(?) sp. #6

Hypselodoris alboterminata





Hypselodoris bertschi

Hypselodoris imperialis

Hypselodoris infucata

Hypselodoris insulana





Hypselodoris maridadilus

Hypselodoris paulinae

Hypselodoris peasei

Hypselodoris violabranchia





Mexichromis(?) sp. #3

Miamira sinuata

Thorunna daniellae

Thorunna cf. halourga





Thorunna kahuna

Verconia simplex

Verconia varians

Verconia sp. #4





Verconia
sp. #5

Verconia sp. #6


 
Dendrodorididae
 

Dendrodoris cf. albopurpura

Dendrodoris carbunculosa

Dendrodoris coronata

Dendrodoris elongata





Dendrodoris fumata

Dendrodoris krusensternii

Dendrodoris nigra

Dendrodoris tuberculosa





Dendrodoris sp. #1

Dendrodoris sp. #6

Dendrodoris sp. #7

Dendrodoris sp. #7





Doriopsilla sp. #1

Doriopsilla sp. #5

Doriopsilla sp. #9

un. sp. #14
 
Phyllidiidae
 

Ceratophyllidia sp. #1

Phyllidia exquisita

Phyllidia
cf. larryi

Phyllidia polkadotsa





Phyllidia scottjohnsoni

Phyllidia varicosa

Phyllidia sp. #1

Phyllidiella pustulosa





Phyllidiella rosans

Phyllidiella sp. #1

Phyllidiopsis cardinalis

Phyllidiopsis fissurata





Phyllidiopsis loricata

Phyllidiopsis sphingis

un. sp. #1

 
Hexabranchidae
 


Hexabranchus aureomarginatus

Hexabranchus pulchellus

 
Goniodorididae
 

Goniodoridella sp. #1

Goniodoridella sp. #2

Goniodoris joubini

Goniodoris sp. #1





Okenia pellucida

Okenia rhinorma

Okenia sp. #1

Okenia sp. #2





Trapania euryeia

Trapania sp. #1



Calycidorididae



Diaphorodoris sp. #1

 
Onchidorididae
 


Onchidoris cf. depressa

 
Aegiridae
 

Aegires exeches

Aegires lemoncello

Aegires pruvotfolae
 
Gymnodorididae
 

Gymnodoris alba

Gymnodoris bicolor

Gymnodoris citrina

Gymnodoris okinawae





Gymnodoris rubropapulosa

Gymnodoris sp. #2

Gymnodoris sp. #5

Gymnodoris sp. #6





Gymnodoris sp. #7

Gymnodoris sp. #8

Gymnodoris sp. #9

Gymnodoris sp. #10
 
Polyceridae
 

Crimora lutea

Kalinga ornata

Kaloplocamus cf. dokte

Kaloplocamus ramosus





Martadoris amakusana

Martadoris limaciformis

Plocamopherus ceylonicus

Plocamopherus cf. imperialis





Plocamopherus maculatus

Plocamopherus(?) sp. #1

Polycera abei

Polycera japonica





Polycera sp. #1

Polycera
sp. #3

Roboastra gracilis

Tambja morosa





Tambja sagamiana

Thecacera pacifica


 
Vayssiereidae
 


Vayssierea felis

 
Bornellidae
 

Bornella anguilla

Bornella pele

Bornella stellifer
 
Hancockiidae
 

  Hancockia sp. #1
 
Scyllaeidae
 

Notobryon wardi

Scyllae cf. fulva

Scyllae sp. #1
 
Phylliroidae
 


Cephalopyge trematoides

Phylliroe bucephala

 
Tethyidae
 

Melibe engeli

Melibe megaceras

Melibe pilosa

 
Dotidae
 


Doto sp. #1

Doto sp. #2

 
Embletoniidae
 

Embletonia gracilis
 
Tritoniidae
 

Marianina rosea

Marionia hawaiiensis

Tritonia sp. #4

Tritoniopsis sp. #1





un. sp. #2



 
Arminidae
 


Dermatobranchus cf. piperoides

Dermatobranchus rubidus

 
Madrellidae
 

Madrella sp. #1
 
Proctonotidae
 

Janolus mirabilis

Janolus toyamensis

Janolus
sp. #1
 
Flabellinidae
 

Cumanotus(?) sp. #1

Flabellina exoptata

Flabellina rubrolineata
 
Samlidae
 

Samla bicolor

Samla cf. rubropurpurata

Samla
sp. #1
 
Babakinidae
 

Babakina indopacifica

Fionidae


Abronica sp. #4

Eubranchus mandapamensis

Eubranchus sp. #1

Eubranchus sp. #2





Eubranchus sp. #3

Eubranchus sp. #4

Eubranchus sp. #5

Eubranchus sp. #6





Eubranchus sp. #7

Eubranchus sp. #8

Fiona pinnata

Tenellia acinosa





Tenellia diminutiva

Tenellia lugubris

Tenellia melanobrachia

Tenellia cf. minor





Tenellia ornata

Tenellia perca

Tenellia pinnifera

Tenellia poritophages





Tenellia sp. #1

Tenellia sp. #2

Tenellia sp. #5

Tenellia sp. #6





Tenellia sp. #7

Tenellia sp. #8

Tenellia sp. #9

Tenellia sp. #10





Tenellia sp. #11

Tenellia sp. #12

Tenellia sp. #13

Tenellia sp. #15





Tenellia sp. #16 (PNH)

Tenellia sp. #19

Tenellia sp. #20

Tenellia sp. #21





Tenellia sp. #22

Tenellia sp. #23

Tenellia sp. #24

Tenellia sp. #25





Tergipes(?) sp. #1




Facelinidae
 

Antonietta cf. janthina

Caloria indica

Caloria militaris

Caloria
sp. #1





Caloria
sp. #2

Caloria
sp. #3

Caloria
sp. #4

Cratena
sp. #1





Facelina sp. #2

Facelina
sp. #3

Facelina sp. #4

Facelinella semidecora





Favorinus japonicus

Favorinus
mirabilis

Favorinus
sp. #1

Favorinus
sp. #2





Glaucus atlanticus

Glaucus marginatus

Godiva
sp. #1

Herviella mietta





Noumeaella
isa

Noumeaella rehderi

Phyllodesmium poindimiei

Phyllodesmium sp. #1





Phyllodesmium
sp. #2

Phyllodesmium
sp. #3

Pleurolidia juliae

Pteraeolidia semperi





Sakuraeolis sp. #1

un. sp. #2

un. sp. #3

 
Aeolidiidae
   

Anteaeolidiella cacaotica

Anteaeolidiella cf. takanosimensis

Baeolidia moebii

Baeolidia ransoni





Baeolidia salaamica

Baeolidia scottjohnsoni

Bulbaeolidia alba

Bulbaeolidia paulae





Cerberilla affinis

Cerberilla sp. #1

Cerberilla sp. #2

Limenandra confusa





Limenandra rosanae

Spurilla braziliana


 
Pseudovermidae
 

Pseudovermis sp. #1
 
If you are interested in related taxa that are not traditionally considered sea slugs (opisthobranchs), please see the lower heterobranch addendum and the marine pulmonate addendum. Both also include some families that have been placed in the Opisthobranchia by some authors.

Although they're not closely related to sea slugs, we've added a velutinid addendum since, outside the Heterobranchia, they're probably the mollusks most easily mistaken for opisthobranchs.
 
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