By species www.diverosa.com Rokus Groeneveld & Sanne Reijs   
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  Order Acteonoidea

Bubble shells (family Aplustridae) belong to the Order Acteonoidea.
The animal cannot retract entirely into the shell and lacks a protective operculum. The shell is greatly inflated, thin-walled and light and fragile; a 'bubble shell'. 		IMI-080_Hydatina_physis_Striped_bubble_shell

Hydatina physis

Striped bubble shell

Bangka, Indonesia 2017
house reef Mimpi Indah (night dive)

 AWA-014_Hydatina_physis_Brown_line_paperbubble

Hydatina physis

Brown line paperbubble

Western Australia 2020
Dive site: Kwinana grain terminal (night dive)

 ANS-055_Hydatina_physis_Brown-lined_paper_bubble

Hydatina physis

Brown line paperbubble

Australia, New South Wales 2023
Dive site: Clifton gardens (night dive)

 ANS-167_Hydatina_physis_mating_Brown-lined_paper_bubbles

Hydatina physis, mating

Brown line paperbubbles

Australia, New South Wales 2023
Dive site: Clifton gardens (night dive)

ANS-265_Hydatina_physis_Brown-lined_paper_bubble

Hydatina physis, mating

Brown line paperbubbles

Australia, New South Wales 2023
Dive site: Clifton gardens (night dive)

 FAN-017 Micromelo undatus, Miniature melo or Wavy-lined bubble

Micromelo undatus

Miniature melo (Wavy-lined bubble)

Anilao, the Philippines 2015
Dive site: Secret garden

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index Shells 		IMI-090_Pupa_solidula_Solid_pupa

Pupa solidula

Solid pupa

Bangka, Indonesia 2017
Areng kambing 2

 
  Order Anaspidae, Sea hares (family Aplysiidae)
FRO-368_Aplysia_dactylomela_Spotted_seahare

Aplysia dactylomela

Spotted seahare

Romblon, the Philippines 2017
Dive site: Bangug 4

 AWA-065_Aplysia_extraordinaria_pair

Aplysia extraordinaria, mating pair

Giant sea hare

Western Australia 2020
Dive site: Point peron

 FAN-113 probably Aplysia juliana, Walking seahare

probably Aplysia juliana

Walking sea hare

Anilao, Philippines 2015
Dive site: Anilao pier (night dive)

 IL5-117 Kuroda's sea hare, Aplysia kurodai

Aplysia kurodai

Kuroda's sea hare

Lembeh, Indonesia 2014
Dive site: Jahir (night dive)

 IL5-318 Kuroda's sea hare, Aplysia kurodai 2

Aplysia kurodai

Kuroda's sea hare

Lembeh, Indonesia 2014
Dive site: Jahir (night dive)

FN2-469_Aplysia_oculifera_Eyed_sea_hare

Aplysia oculifera

Eyed sea hare

Negros, Philippines 2019
Dive site: Sahara (night dive)

 FN2-455_probably_Aplysia_oculifera_Eyed_sea_hare_1

probably Aplysia oculifera 1

Eyed sea hare

Negros, the Philippines 2019
Dive site: Talisay

 FN2-131_probably_Aplysia_oculifera_Eyed_sea_hare_2

probably Aplysia oculifera 2

Eyed sea hare

Negros, the Philippines 2019
Dive site: Talisay

 FRO-069_Aplysia_nigrocincta

Aplysia nigrocincta

?

Romblon, the Philippines 2017
Dive site: Bangug 3

 FRO-276_Aplysia_nigrocincta

Aplysia nigrocincta

?

Romblon, the Philippines 2017
Dive site: Bangug 3 (night dive)

FRO-366_Aplysia_nigrocincta

Aplysia nigrocincta

?

Romblon, the Philippines 2017
Dive site: San Pedro

 FRO-384_Aplysia_nigrocincta

Aplysia nigrocincta

?

Romblon, the Philippines 2017
Dive site: Logbon, Coral canyon

 FN2-081_Aplysia_nigrocincta

Aplysia nigrocincta

?

Negros, the Philippines 2019
Dive site: Talisay

 IMB-329_Aplysia_nigrocincta

Aplysia nigrocincta

?

Manado Bay, Indonesia 2022
Dive site: Circus critter 2 (night dive)

 IMI-115_probably_Aplysia_nigrocincta

probably Aplysia nigrocincta

?

Bangka, Indonesia 2017
Dive site: Efrata

FA2-053_Aplysia_nigrocincta

Aplysia nigrocincta

?

Anilao, the Philippines 2023
Dive site: Secret bay (night dive)

AVI-029_Aplysia_sydneyensis

Aplysia sydneyensis

Sydny sea hare

Australia, Victoria 2018
Dive site: Flinders pier (night dive)

 AWA-022_Aplysia_sydneyensis_Sydney_sea_hare

Aplysia sydneyensis

Sydney sea hare

Western Australia 2020
Dive site: Point peron

 IL4-093 unidentified sea hare, Aplysia sp.

Aplysia sp.

unidentified swimming sea hare

Lembeh, Indonesia 2010
Dive site: Madidir (night dive)

 IH2-035 undetermined sea hare, family Aplysiidae

Aplysia sp.

undetermined sea hare

Halmahera, Indonesia 2014
Dive site: Tanjung uli

AWA-228_family_Aplysiidae_egg_mass_sea_hare

Aplysia sp.

undetermined sea hare egg mass

Western Australia 2020
Dive site: Kwinana grain terminal

  IB3-032_Bursatella_leachii,_Leach's_sea_hare

Bursatella leachii

Leach's sea hare

Bali, Indonesia 2016
Dive site: Puri jati

 AVI-154_Bursatella_leachii_Leachs_sea_hare

Bursatella leachii

Leach's sea hare

Australia, Victoria 2018
Dive site: Flinders pier (night dive)

 IL6-156_Bursatella_leachii_juvenile_Leachs_sea_hare

Bursatella leachii

Leach's sea hare, juvenile

Lembeh, Indonesia 2022
Dive site: Teluk kembahu 1

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Slugs & Flatworms 		FMI-265 Blunt-end sea hare, Dolabella auricularia

Dolabella auricularia

Blunt-end sea hare

Cebu, Philippines 2007
house reef Magic Island (night dive)

 IRA-259 undetermined sea hare, family Aplysiidae

Dolabella auricularia

Blunt-end sea hare

Raja ampat, Indonesia 2014
Dive site: house reef Sorido (night dive)

 FRO-048_Dolabella_auricularia_Blunt-end_sea_hare_1

Dolabella auricularia

Blunt-end sea hare 1

Romblon, the Philippines 2017
Dive site: Agnay desert (night dive)

 FRO-262_Dolabella_auricularia_Blunt-end_sea_hare_2

Dolabella auricularia

Blunt-end sea hare 2

Romblon, the Philippines 2017
Dive site: Agnay desert (night dive)

FRO-355_Dolabella_auricularia_Blunt-end_sea_hare

Dolabella auricularia

Blunt-end sea hare

Romblon, the Philippines 2017
Dive site: Agnay desert (night dive)

 FRO-379_Dolabella_auricularia_Blunt-end_sea_hare

Dolabella auricularia

Blunt-end sea hare

Romblon, the Philippines 2017
Dive site: Agnay desert (night dive)

 FMO-128_Dolabella_auricularia_Blunt-end_sea-hare

Dolabella auricularia

Blunt-end sea hare

Philippines, Anda 2018
Dive site: house reef Magic Oceans

 IL6-127_Dolabella_auricularia_Blunt-end_sea_hare

Dolabella auricularia

Blunt-end sea hare, juvenile

Lembeh, Indonesia 2022
Dive site: Teluk kembahu 1

 ANS-191_egg_ribbon_Dolabella_auricularia

Dolabella auricularia

Blunt-end sea hare, egg ribbon

Australia, New South Wales 2023
Dive site: Fairy bower

FAN-465 probably Dolabrifera dolabrifera, Warty seacat

probably Dolabrifera dolabrifera

Warty seacat

Anilao, Philippines 2015
Dive site: Basura

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Slugs & Flatworms 		FNE-237 undetermined juvenile sea hare

Notarchus indicus

Sailing sea hare

Negros, the Philippines 2012
Dive site: San Miguel (night dive)

 FAN-110 Notarchus indicus, Indian sea hare

Notarchus indicus

Sailing sea hare

Anilao, Philippines 2015
Dive site: Secret garden

 FRO-009_Notarchus_indicus_Sailing_Seahare

Notarchus indicus

Sailing sea hare, sailing ;-)

Romblon, the Philippines 2017
Dive site: Bon bon (night dive)

IL6-063_Notarchus_indicus_Indian_sea_hare

Notarchus indicus

Sailing sea hare, with eggs (?)

Lembeh, Indonesia 2022
Dive site: Air bajo 2

 IL6-355_Notarchus_indicus

Notarchus indicus

Sailing sea hare

Lembeh, Indonesia 2022
Dive site: Air prang (night dive)

  IRA-068 Seagrass sea hare, Phyllaplysia sp.

Phyllaplysia sp.

Seagrass sea hare

Raja ampat, Indonesia 2014
Dive site: house reef Sorido (night dive)

 IRA-283 Seagrass sea hare, Phyllaplysia sp. 2

Phyllaplysia sp.

Seagrass sea hare

Raja ampat, Indonesia 2014
Dive site: house reef Sorido (night dive)

FRO-014_Stylocheilus_striatus_Lined_sea_hare

Stylocheilus striatus

Lined sea hare

Romblon, the Philippines 2017
Dive site: Bon bon (night dive)

 IB4-127_Stylocheilus_striatus_Lined_seahare

Stylocheilus striatus

Lined sea hare

Bali, Indonesia 2024
Dive site: Sidem

 IB3-034_Syphonota_geographica,_Geographic_sea_hare

Syphonota geographica

Geographic sea hare

Bali, Indonesia 2016
Dive site: Puri jati (night dive)

 IL6-161_Syphonota_geographica_Geographic_sea_hare

Syphonota geographica

Geographic sea hare

Lembeh, Indonesia 2022
Dive site: Air bajo 1 (night dive)

 
FN2-184_family_Aplysiidae_egg_ribbon

family Aplysiidae

egg ribbon

Negros, Philippines 2019
Dive site: Pyramids

 FN2-243_family_Aplysiidae_egg_ribbon

family Aplysiidae

egg ribbon

Negros, Philippines 2019
Dive site: Secret corner

 FN2-379_probably_family_Aplysiidae_egg_ribbon

probably family Aplysiidae

egg ribbon

Negros, Philippines 2019
Dive site: Pyramids

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Slugs & Flatworms
  superfamily Pleurobranchoidea, Sidegill slugs (family Pleurobranchaeidae)
IL3-048 Euselenops luniceps

Euselenops luniceps

Moon-faced euselenops

Lembeh, Indonesia 2008
Dive site: Jarijari-Jahir (night dive)

 IL5-116 mating Moon-face euselenops, Euselenops luniceps

Euselenops luniceps 1

Moon-faced euselenops, mating

Lembeh, Indonesia 2014
Dive site: Jahir (night dive)

 IL5-317 Moon-face euselenops, Euselenops luniceps, mating

Euselenops luniceps 2

Moon-faced euselenops, mating

Lembeh, Indonesia 2014
Dive site: Jahir (night dive)

 IL5-320 egg ribbon Moon-face euselenops, Euselenops luniceps

Euselenops luniceps

Moon-faced euselenops, egg ribbon

Lembeh, Indonesia 2014
Dive site: Jahir (night dive)

 IL5-319 Moon-face euselenops, Euselenops luniceps with egg ribbon

Euselenops luniceps

Moon-faced euselenops + egg ribbon

Lembeh, Indonesia 2014
Dive site: Jahir (night dive)

IL6-075_Euselenops_luniceps_Moon-headed_sidegill_slug

Euselenops luniceps

Moon-faced euselenops

Lembeh, Indonesia 2022
Dive site: Air prang (night dive)

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Slugs & Flatworms 		FN2-039_Pleurobranchaea_brockii

Pleurobranchaea brockii

?

Negros, Philippines 2019
Dive site: District II (night dive)

 FN2-301_Pleurobranchaea_brockii_2

Pleurobranchaea brockii

?

Negros, Philippines 2019
Dive site: District II (night dive)

 FR2-090_Pleurobranchaea_brockii

Pleurobranchaea brockii

(juvenile)

Romblon, the Philippines 2023
Dive site: Sawang slope (night dive)

  superfamily Pleurobranchoidea, Sidegill slugs (family Pleurobranchidae)
IL6-113_Berthella_aurantiaca

Berthella aurantiaca

?

Lembeh, Indonesia 2022
Dive site: Nudi falls (night dive)

 FMI-014 Berthella martensi

Tomoberthella martensi

Marten's berthella

Cebu, Philippines 2007
house reef Magic Island (night dive)

 FRO-151_Berthella_martensi_Martens_berthella

Tomoberthella martensi

Marten's berthella

Romblon, the Philippines 2017
Dive site: Bangug check

 FR2-038_Tomoberthella_martensi

Tomoberthella martensi

Marten's berthella

Romblon, the Philippines 2023
Dive site: Bangug one

 AVI-152_Berthellina_citrina_Orange_side-gilled_slug

Berthellina citrina

Orange side-gilled slug

Australia, Victoria 2018
Dive site: Flinders pier (night dive)

ANS-027_Berthellina_citrina

Berthellina citrina

Orange side-gilled slug

Australia, New South Wales 2023
Dive site: Clovelly pool (night dive)

 ANS-506_Berthellina_citrina

Berthellina citrina

Orange side-gilled slug

Australia, New South Wales 2023
Dive site: Clifton gardens (night dive)

  IB3-086_Pleurobranchus_albiguttatus,_Mosaic_pleurobranch

Pleurobranchus albiguttatus

Mosaic pleurobranch

Bali, Indonesia 2016
Dive site: Seraya point (night dive)

 FN2-094_Pleurobranchus_albiguttatus

Pleurobranchus albiguttatus

Mosaic pleurobranch

Negros, Philippines 2019
Dive site: Talisay

FN2-352_Pleurobranchus_albiguttatus_2

Pleurobranchus albiguttatus

Mosaic pleurobranch

Negros, Philippines 2019
Dive site: Talisay

 FN2-451_Pleurobranchus_albiguttatus

Pleurobranchus albiguttatus

Mosaic pleurobranch

Negros, Philippines 2019
Dive site: Sahara (night dive)

 FN2-353_Pleurobranchus_albiguttatus

Pleurobranchus albiguttatus

Mosaic pleurobranch

Negros, Philippines 2019
Dive site: Talisay

 IL2-097 Forskals pleurobranchus, Pleurobranchus forskali

Pleurobranchus forskalii

Forskal’s pleurobranchus

Lembeh, Indonesia 2006
Dive site: The new place / Fish factory

 FM2-001 Forskals pleurobranchus, Pleurobranchus forskalii

Pleurobranchus forskalii

Forskal’s pleurobranchus

Cebu, the Philippines 2012
house reef Magic Island (night dive)

FM2-040 Forskals pleurobranchus, Pleurobranchus forskali

Pleurobranchus forskalii

Forskal’s pleurobranchus

Cebu, the Philippines 2012
house reef Magic Island (night dive)

 FNE-217 Forskals pleurobranchus, Pleurobranchus forskalii

Pleurobranchus forskalii

Forskal’s pleurobranchus

Negros, the Philippines 2012
Dive site: San Miguel (night dive)

 IH2-059 Forskals pleurobranchus, Pleurobranchus forskalii

Pleurobranchus forskalii

Forskal’s pleurobranchus

Halmahera, Indonesia 2014
Dive site: Dive site: Airstrip (night dive)

 IL5-052 Forskals pleurobranchus, Pleurobranchus forskalii

Pleurobranchus forskalii

Forskal’s pleurobranchus

Lembeh, Indonesia 2014
Dive site: Madidir I (night dive)

 FAN-073 Pleurobranchus forskalii, Forskals pleurobranch

Pleurobranchus forskalii

Forskal’s pleurobranchus

Anilao, Philippines 2015
Dive site: house reef Portulano (night dive)

FAN-097 Pleurobranchus forskalii, Forskals pleurobranch

Pleurobranchus forskalii

Forskal’s pleurobranchus

Anilao, Philippines 2015
Dive site: Sea pipe (night dive)

 FAN-286 Pleurobranchus forskalii, Forskals pleurobranch

Pleurobranchus forskalii

Forskal’s pleurobranchus

Anilao, Philippines 2015
Dive site: Koala (night dive)

 FN2-125_egg_ribbons_Pleurobranchus_forskalii

egg ribbons Pleurobranchus forskalii

Forskal’s pleurobranchus

Negros, Philippines 2019
Dive site: Sahara (night dive)

 FN2-124_Pleurobranchus_forskalii_mating

Pleurobranchus forskalii

Forskal’s pleurobranchus, mating

Negros, Philippines 2019
Dive site: Sahara (night dive)

 FN2-442_egg_ribbon_Pleurobranchus_forskalii_1

egg ribbon Pleurobranchus forskalii

Forskal’s pleurobranchus

Negros, Philippines 2019
Dive site: Sahara (night dive)

FN2-443_egg_ribbon_Pleurobranchus_forskalii_2

egg ribbon Pleurobranchus forskalii

Forskal’s pleurobranchus

Negros, Philippines 2019
Dive site: Sahara (night dive)

 FN2-371_Pleurobranchus_forskalii

Pleurobranchus forskalii

Forskal’s pleurobranchus

Negros, Philippines 2019
Dive site: San miguel (night dive)

 FN2-454_Pleurobranchus_forskalii

Pleurobranchus forskalii

Forskal’s pleurobranchus

Negros, Philippines 2019
Dive site: Sahara (night dive)

 IL6-423_Pleurobranchus_forskalii_Forskals_sidegill_slug

Pleurobranchus forskalii

Forskal’s pleurobranchus

Lembeh, Indonesia 2022
Dive site: Nudi falls (night dive)

 IL6-465_Forskals_sidegill_slug

Pleurobranchus forskalii

Forskal’s pleurobranchus

Lembeh, Indonesia 2022
Dive site: Tanduk rusa (night dive)

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Slugs & Flatworms 		IL3-242 Pleurobranchus grandis

Pleurobranchus grandis

Grand pleurobranchus

Lembeh, Indonesia 2008
Dive site: Nudi falls (night dive)

  AVI-185_Pleurobranchus_hilli

Pleurobranchus hilli

Hill's pleurobranchus

Australia, Victoria 2018
Dive site: Blairgowrie pier (night dive)

 
IBA-302 Pleurobranchus peroni

Pleurobranchus peroni

Peron's sidegill slug, with egg ribbon

Bali, Indonesia 2009
Dive site: Seraya

 IB3-085_Pleurobranchus_peronii,_Peron's_sidegill_slug

Pleurobranchus peroni

Peron's sidegill slug

Bali, Indonesia 2016
Dive site: Seraya point (night dive)

 FN2-130_Pleurobranchus_peronii

Pleurobranchus peroni

Peron's sidegill slug

Negros, Philippines 2019
Dive site: Sahara (night dive)

 FN2-169_Pleurobranchus_peronii

Pleurobranchus peroni

Peron's sidegill slug

Negros, Philippines 2019
Dive site: Thalatta

 ANS-049_Pleurobranchus_peronii

Pleurobranchus peroni

Peron's sidegill slug

Australia, New South Wales 2023
Dive site: Clifton gardens (night dive)

ANS-071_Pleurobranchus_peronii

Pleurobranchus peroni

Peron's sidegill slug

Australia, New South Wales 2023
Dive site: Nelson bay, Camp cove (night dive)

 ANS-424_Pleurobranchus_peronii

Pleurobranchus peroni

Peron's sidegill slug

Australia, New South Wales 2023
Dive site: Clifton gardens (night dive)

 FN2-475_Pleurobranchus_weberi

Pleurobranchus weberi

Weber's pleurobranchus

Negros, Philippines 2019
Dive site: Thalatta

  FAN-281_maybe_Pleurobranchus_forskalii_egg_ribbon

family Pleurobranchidae?

family Pleurobranchidae egg ribbon

Anilao, the Philippines 2015
Dive site: Secret garden

  family Umbraculidae
IL5-077 Umbrella pleurobranch, Umbraculum umbraculum 2

Umbraculum umbraculum

Umbrella pleurobranch

Lembeh, Indonesia 2014
Dive site: Air prang (night dive)

 IL5-076 Umbrella pleurobranch, Umbraculum umbraculum 1

Umbraculum umbraculum 1

Umbrella pleurobranch

Lembeh, Indonesia 2014
Dive site: Air prang (night dive)

 IL5-242 Umbrella pleurobranch, Umbraculum umbraculum 3

Umbraculum umbraculum 2

Umbrella pleurobranch

Lembeh, Indonesia 2014
Dive site: Air prang (night dive)

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Slugs & Flatworms