Acanthozoon sp.

Papillate flatworm

Ambon, Indonesia 2010
house reef Maluku divers (night dive)

Acanthozoon sp.

Papillate flatworm

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

Acanthozoon sp.

Papillate flatworm

Halmahera, Indonesia 2014
Dive site: Tanjung uli

Acanthozoon sp.

Papillate flatworm

Halmahera, Indonesia 2014
Dive site: Pasir putih

Acanthozoon sp.

Papillate flatworm

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

Ascidiophilla alba

on ascidian Didemnum molle

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

Ascidiophilla alba

on ascidian Didemnum molle

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

Ascidiophilla alba

with undetermined amphipod

Bali, Indonesia 2016
Tulamben, house reef Ocean view (nd.)

Ascidiophilla alba

?

Bali, Indonesia 2016
Tulamben, house reef Ocean view (nd.)

Ascidiophilla alba

?

Romblon, the Philippines 2017
Dive site: Anchor bay

Eurylepta sp.

?

Lembeh, Indonesia 2010
Dive site: Kapal indah

maybe Eurylepta sp.

?

Halmahera, Indonesia 2014
Dive site: Mangrove

Eurylepta sp.

?

Romblon, the Philippines 2017
Dive site: Suwa

Euryleptid sp.

?

Lembeh, Indonesia 2010
Dive site: Kapal indah

Euryleptid sp.

?

Lembeh, Indonesia 2014
Dive site: Pulau abadir

Euryleptid sp.

?

Bali, Indonesia 2016
Dive site: Seraya

family Euryleptidae

?

Bali, Indonesia 2016
Menjangan, Mimpi chanel (night dive)

family Euryleptidae

?

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

Maiazoon orsaki

Orsak Flatworm

Halmahera, Indonesia 2010
Dive site: Shark reef

Maiazoon orsaki

Orsak Flatworm

Cebu, the Philippines 2012
Dive site: Fish feeding

Maiazoon orsaki

Orsak Flatworm

Raja ampat, Indonesia 2014
Dive site: Otdima

maybe Paraplanocera sp.

?

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

probably Phrikoceros baibaiye

?

Bali, Indonesia 2016
Dive site: Secret bay (night dive)

Pseudobiceros bedfordi

Elegant flatworm

Kapalai, Malaysia 2003
Dive site: Midreef

Pseudobiceros bedfordi

swimming Elegant flatworm

Gili islands, Lombok, Indonesia 2009
Stingray, Gili Trawangan (night dive)

Pseudobiceros bedfordi

Elegant flatworm

Halmahera, Indonesia 2010
house reef Weda resort (night dive)

Pseudobiceros cf. contrarius

?

Romblon, the Philippines 2017
Dive site: Broken house

Pseudobiceros flowersi

Flower’s flatworm

Lembeh, Indonesia 2008
Dive site: Air prang (night dive)

Pseudobiceros flowersi

Flower’s flatworm

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

Pseudobiceros flowersi

swimming Flower’s flatworm

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

Pseudobiceros flowersi

Flowers' flatworm

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

Pseudobiceros flowersi

Flower’s flatworm

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

Pseudobiceros gloriosus

Glorious flatworm

Lembeh, Indonesia 2014
Dive site: Kuda laut

Pseudobiceros kryptos

?

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

Pseudobiceros kryptos

?

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

Pseudobiceros sp.

?

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

Pseudobiceros sp.

?

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

Pseudoceros bifurcus

Racing stripe flatworm

Puerto Galera, Philippines 2005
Dive site: Sinadigan

Pseudoceros bifurcus

Racing stripe flatworm

Bali, Indonesia 2009
Dive site: Menjangan, Pos I

Pseudoceros bifurcus

Racing stripe flatworm

Bali, Indonesia 2009
Dive site: Menjangan, Pos I

Pseudoceros bifurcus

Racing stripe flatworm

Halmahera, Indonesia 2014
Dive site: Pasir putih

Pseudoceros bifurcus

Racing stripe flatworm

Bali, Indonesia 2016
Dive site: Menjangan, Blue corner

Pseudoceros bimarginatus

?

Bali, Indonesia 2016
Menjangan, Mimpi chanel (night dive)

Pseudoceros dimidiatus &

Thysanozoon nigropapillosum

Kapalai, Malaysia 2003
Dive site: Midreef

Pseudoceros dimidiatus

Divided flatworm or Tiger flatworm

Halmahera, Indonesia 2014
Dive site: Elmo's reef

Pseudoceros dimidiatus

Divided flatworm or Tiger flatworm

Bali, Indonesia 2016
Diver site: Menjangan, Eel garden

maybe Pseudoceros goslineri

?

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

Pseudoceros laingensis

Purple-spotted yellow flatworm

Negros, the Philippines 2012
Dive site: Siquijor, Paliton (sanctuary)

Pseudoceros laingensis

Purple-spotted yellow flatworm

Raja ampat, Indonesia 2014
Dive site: Mike's point

probably Pseudoceros laingensis

Purple-spotted yellow flatworm

Raja ampat, Indonesia 2014
Dive site: The passage

Pseudoceros laingensis

Purple-spotted yellow flatworm

Raja ampat, Indonesia 2014
Dive site: Otdima

Pseudoceros lindae

?

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

Pseudoceros lindae

?

Bali, Indonesia 2016
Dive site: Menjangan, Blue corner

Pseudoceros lindae

?

Bangka, Indonesia 2017
Dive site: Batu Lihunu

Pseudoceros lividus

Blue flatworm

South Australia 2018
Dive site: Edithburg jetty

Pseudoceros maximus

?

Lembeh, Indonesia 2008
Dive site: Air prang (night dive)

Pseudoceros paralaticlavus

?

Lembeh, Indonesia 2008
Dive site: Tanduk rusa (night dive)

Pseudoceros paralaticlavus

Goldrim flatworm

Lembeh, Indonesia 2014
Dive site: Jari Jari

Pseudoceros prudhoei

?

Lembeh, Indonesia 2010
Dive site: Teluk kembahu II

Pseudoceros prudhoei

?

Bali, Indonesia 2016
Dive site: Seraya slope

Pseudoceros cf. prudhoei

?

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

Pseudoceros rubronanus

Red dwarf flatworm

Bali, Indonesia 2016
house reef Ocean view (night dive)

Pseudoceros rubronanus

Red dwarf flatworm

Romblon, the Philippines 2017
Dive site: Bonbon broken coconut

Pseudoceros rubronanus?

maybe Red dwarf flatworm

Cebu, the Philippines 2012
Dive site: Banlot (night dive)

Pseudoceros scintillatus

Brilliant flatworm (or Sparky pseudoceros)

Negros, the Philippines 2012
Dive site: Apo island, Largahan

Pseudoceros scintillatus

Brilliant flatworm (or Sparky pseudoceros)

Lembeh, Indonesia 2014
Dive site: Jahir

Pseudoceros scintillatus

Brilliant flatworm (or Sparky pseudoceros)

Anilao, the Philippines 2015
Dive site: Basura

Pseudoceros scintillatus

Brilliant flatworm (or Sparky pseudoceros)

Anilao, the Philippines 2015
Dive site: Secret bay

Pseudoceros scintillatus

Brilliant flatworm (or Sparky pseudoceros)

Anilao, the Philippines 2015
Dive site: Secret bay

Pseudoceros sharroni

?

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

Pseudoceros sp.

?

Lembeh, Indonesia 2008
Dive site: Teluk kembahu II (night dive)

Pseudoceros sp.

?

Bali, Indonesia 2011
Dive site: Tulamben, Drop off

Pseudoceros sp.

?

Marsa alam, Egypt 2012
Dive site: house reef Oasis (night dive)

Pseudoceros sp.

?

Raja ampat, Indonesia 2014
Dive site: The passage

Pseudoceros sp.

?

Raja ampat, Indonesia 2014
Dive site: The passage

Pseudoceros sp.

?

Raja ampat, Indonesia 2014
Dive site: Friwenbonda

Pseudoceros sp.

Blue-lined flatworm

Raja ampat, Indonesia 2014
Dive site: The passage

maybe Pseudoceros sp.

?

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

family Pseudocerotidae

undetermined cryptic flatworm

Romblon, the Philippines 2017
Dive site: Bonbon talisay

Thysanozoon nigropapillosum

Yellowspot flatworm

Hamata, Egypt 2007
Dive site: Shaab Hamam

Thysanozoon nigropapillosum

Yellowspot flatworm

Hamata, Egypt 2007
Dive site: Habili Claudia

Thysanozoon nigropapillosum

Yellowspot flatworm

Halmahera, Indonesia 2010
Dive site: New jetty (night dive)

Thysanozoon sp.

undetermined flatworm

Anilao, the Philippines 2015
Dive site: Secret garden

?

undetermined flatworm

Bali, Indonesia 2009
Dive site: Secret bay

?

undetermined flatworm

Bali, Indonesia 2016
Dive site: Seraya point

?

undetermined flatworm

Romblon, the Philippines 2017
Dive site: Bangug talisay

?

undetermined flatworm

Australia, Victoria 2018
Dive site: Flinders pier

cf. Amphiscolos sp.

Acoel flatworms

Halmahera, Indonesia 2010
Dive site: Shark reef

cf. Amphiscolos sp.

Acoel flatworm

Halmahera, Indonesia 2010
Dive site: Shark reef

cf. Amphiscolos sp.

Acoel flatworm

Halmahera, Indonesia 2014
Dive site: Mangrove

Waminoa sp.

Acoel flatworms

Halmahera, Indonesia 2010
Dive site: N 00.28.192 / E 127.58.668

Waminoa sp.

Acoel flatworms

Cebu, the Philippines 2007
Dive site: house reef Magic Island

Waminoa sp.

Acoel flatworms

Bali, Indonesia 2011
Dive site: Amed, Drop off

Waminoa sp.

Acoel flatworms

Cebu, the Philippines 2012
Dive site: Arigay

Waminoa sp.

Acoel flatworms

Cebu, the Philippines 2012
Dive site: house reef Magic Island

Waminoa sp.

Acoel flatworms

Halmahera, Indonesia 2014
Dive site: Tidore

Waminoa sp.

Acoel flatworms

Bangka, Indonesia 2017
Dive site: Areng kambing 1

Waminoa sp.

Acoel flatworms

Bangka, Indonesia 2017
Dive site: Tanjung husi 3

undetermined Acoel flatworms

on Echinaster callosus

Lembeh, Indonesia 2010
Dive site: Pulau serena