maybe Asparagopsis sp.

?

Philippines, Anda 2018
Dive site: Bacong west

Avrainvillea amadelpha

?

Romblon, the Philippines 2017
Bonbon broken coconut (night dive)

Avrainvillea amadelpha

?

Romblon, the Philippines 2017
Bonbon broken coconut (night dive)

Avrainvillea erecta

Solitary fan green seaweed

Bali, Indonesia 2009
Dive site: Kalanganyar

Avrainvillea erecta

Solitary fan green seaweed

Negros, the Philippines 2012
Dive site: San Miguel

Avrainvillea erecta

Solitary fan green seaweed

Bangka, Indonesia 2017
Dive site: Areng kambing 2

Boergesenia forbesii

Bubble green seaweed

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

Boergesenia forbesii

Bubble green seaweed

Philippines, Anda 2018
Dive site: house reef Magic Oceans

Caulerpa chemnitzia

?

Bangka, Indonesia 2017
Dive site: house reef Mimpi Indah

Caulerpa peltata

Big parasol green seaweed

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

Caulerpa racemosa

Grape weed

Cebu, the Philippines 2007
Dive site: Tuble north

Caulerpa racemosa

Grape weed

Halmahera, Indonesia 2010
Dive site: Gemaf

Caulerpa racemosa

Grape weed

Negros, the Philippines 2012
Dive site: Siquijor wall

Caulerpa racemosa

Grape weed

Philippines, Anda 2018
Dive site: Snappers cave

Caulerpa serrulata

Saw-blade algae

Cebu, the Philippines 2012
Dive site: Kasai point

Coralliocaris macropthalma

green algae

Halmahera, Indonesia 2010
Dive site: Tidore

Dictyota dichotoma

Brown forkweed

South Australia 2018
Dive site: Noarlunga reef (night dive)

Dictyosphaeria cavernosa

green algae

Bali, Indonesia 2016
Tulamben, house reef Ocean view

Dictyosphaeria sericea

Liverwort seaweed

South Australia 2018
Dive site: Rapid bay jetty

Dictyosphaeria sericea

Liverwort seaweed

South Australia 2018
Dive site: Rapid bay jetty

Dichotomaria marginata

red algae

Raja ampat, Indonesia 2014
Dive site: The passage

Distromium flabellatum

Southern peacockweed

Australia, Victoria 2018
Dive site: Rye pier

Ecklonia radiata

Leathery yellow brown kelp

Australia, Victoria 2018
Dive site: Flinders pier

family Galaxauraceae

?

Philippines, Anda 2018
Dive site: house reef Magic Oceans

family Galaxauraceae

?

Philippines, Anda 2018
Dive site: house reef Magic Oceans

Gibsmithia hawaiiensis

red algae

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

Gibsmithia hawaiiensis

red algae

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

Gibsmithia hawaiiensis

red algae

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

Halimeda copiosa

Large-leafhanging vine

Negros, the Philippines 2012
Dive site: San Miguel

Halimeda gracilis

?

Bangka, Indonesia 2017
Dive site: Efrata

Halimeda gracilis

?

Philippines, Anda 2018
Dive site: Snappers cave

Halimeda heteromorpha

?

Bangka, Indonesia 2017
Dive site: Areng kambing 2

Halimeda macroloba

Large leaf coralline algae

Raja ampat, Indonesia 2014
Dive site: Cape kri

Halimeda opuntia

Prostrate sea cactus

Halmahera, Indonesia 2014
Dive site: Mangrove

Halimeda cuneata

?

Romblon, the Philippines 2017
Dive site: Logbon, Sand slope

Halophila ovalis

Seagrass

Bali, Indonesia 2016
Dive site: Secret bay

Halophila ovalis

Seagrass

Romblon, the Philippines 2017
Dive site: Logbon, Sanctuary

maybe Halymenia duchassaignii

Dragons breath

Romblon, the Philippines 2017
Dive site: Bonbon talisay

probably Lithothamnion sp.

undetermined red coralline algae

Cebu, the Philippines 2012
Dive site: Pescador, west side

Neomeris annulata

Fuzzy tip algae

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

Neomeris annulata

Fuzzy tip algae

Romblon, the Philippines 2017
house reef The three P (night dive)

Neomeris annulata

Fuzzy tip algae

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

Padina gymnospora

Funnelweed

Raja ampat, Indonesia 2014
Dive site: Nudibranch rock

Peyssonnelia iridescens

red algae

Bali, Indonesia 2011
Dive site: Labuan segala

Peyssonnelia iridescens

red algae

Bali, Indonesia 2016
Dive site: Mejangan, Eel garden

Peyssonnelia iridescens

red algae

Bali, Indonesia 2016
Dive site: Mejangan, Eel garden

Peyssonnelia sp.

undetermined red algae

Negros, the Philippines 2012
Dive site: Siquijor wall

probably Peyssonnelia sp.

undetermined red algae

Cebu, the Philippines 2012
Dive site: Arigay

Peyssonnelia sp.

undetermined red algae

Bali, Indonesia 2016
Dive site: Mejangan, Blue corner

Peyssonnelia sp.

undetermined red algae

Bangka, Indonesia 2017
Dive site: Batu tiga

maybe Rhodophyta sp.

undetermined algea

Romblon, the Philippines 2017
Bonbon broken coconut (night dive)

probably dying Sargassum sp.

undetermined algea

South Australia 2018
Dive site: Noarlunga reef (night dive)

Scaberia agardhii

Brown fingerweed

South Australia 2018
Dive site: Second valley jetty

Turbinaria ornata

brown algae

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

Tydemania expeditionis

green algae

Cebu, the Philippines 2012
Dive site: Tuble north

Valonia macrophysa

bubble algae

Bali, Indonesia 2011
Dive site: Kubu, Batuh kembar

Valonia macrophysa

bubble algae

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

Ventricaria ventricosa

Sea pearl or Sailor's eyeball

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

Ventricaria ventricosa

Sea pearl or Sailor's eyeball

Halmahera, Indonesia 2010
Dive site: N 00.28.218 / E 128.03.389

Ventricaria ventricosa

Sea pearl or Sailor's eyeball

Bangka, Indonesia 2017
Dive site: Efrata

Ventricaria ventricosa

Sea pearl or Sailor's eyeball

Philippines, Anda 2018
House reef Magic Oceans (night dive)

maybe Wrangelia penicillata

algae

Cebu, the Philippines 2012
Dive site: Tuble north

?

undetermined red coralline algae

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

?

undetermined algae

Romblon, the Philippines 2017
house reef The three P (night dive)

?

probably an algae

South Australia 2018
Dive site: Rapid bay jetty

?

mayby an algae

Raja ampat, Indonesia 2014
Dive site: Mios kon

?

mayby an algae

Raja ampat, Indonesia 2014
Dive site: Blue magic

?

mayby an algae

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

Cestum veneris

Venus' girdle

Halmahera, Indonesia 2014
Dive site: Fish fountain

Cestum veneris

Venus' girdle

Halmahera, Indonesia 2014
Dive site: Fish fountain

Cestum veneris

Venus' girdle

Halmahera, Indonesia 2014
Dive site: Fish fountain

Coeloplana astericola

on Luzon sea star

Bali, Indonesia 2009
Dive site: Tulamben, USAT Liberty

Coeloplana astericola

Creeping comb jelly

Ambon, Indonesia 2010
Dive site: Midpoint

Coeloplana astericola

Creeping comb jelly

Ambon, Indonesia 2010
Dive site: DJ point

Coeloplana astericola

Creeping comb jelly

Bali, Indonesia 2011
Dive site: Seraya

Coeloplana astericola

Creeping comb jelly

Raja ampat, Indonesia 2014
Dive site: Friwenbonda

Coeloplana astericola

Creeping comb jelly

Anilao, the Philippines 2015
Dive site: Secret bay

Coeloplana astericola

Creeping comb jelly

Anilao, the Philippines 2015
Dive site: Bethlehem

Coeloplana astericola

Creeping comb jelly

Anilao, the Philippines 2015
Dive site: Secret bay

Coeloplana astericola

Creeping comb jelly

Anilao, the Philippines 2015
Dive site: Secret bay

Coeloplana astericola

Creeping comb jelly

Anilao, the Philippines 2015
Dive site: Secret bay

Coeloplana astericola

Creeping comb jellies

Bali, Indonesia 2016
Dive site: Padang bay, Turtle neck

Coeloplana astericola

Creeping comb jellies

Bali, Indonesia 2016
Dive site: Seraya

Coeloplana astericola

Creeping comb jellies

Bali, Indonesia 2016
Dive site: Seraya

Coeloplana astericola

Creeping comb jellies

Romblon, the Philippines 2017
Dive site: Magnificat

Coeloplana astericola

Creeping comb jelly

Bangka, Indonesia 2017
Dive site: Tanjung husi 3

Coeloplana bannwarthii

?

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

Coeloplana (Benthoplana) meteoris

(2) comb jelly

Bali, Indonesia 2009
Dive site: Kalanganyar

Coeloplana (Benthoplana) meteoris

comb jelly

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

Coeloplana sp.

comb jelly

Romblon, the Philippines 2017
Dive site: Bonbon broken coconut (night dive)

Coeloplana sp.

comb jelly

Bangka, Indonesia 2017
Dive site: Tanjung husi 3

Coeloplana sp.

comb jellies

Anda, the Philippines 2018
Dive site: Bacong west

probably family Coeloplanidae

undetermined comb jelly

Romblon, the Philippines 2017
Dive site: Bangug check

Cassiopea andromeda

Urchin crab + Upside-down jellyfish

Lembeh, Indonesia 2002
Dive site: Jahir

Cassiopea andromeda

Upside-down jellyfish

Wadi Lahami, Egypt 2003
Dive site: Torfa

Cassiopea andromeda

Upside-down jellyfish

Cabilao, the Philippines 2005
Dive site: house reef Polaris, north

Cassiopea andromeda

Upside-down jellyfish

Bali, Indonesia 2009
Dive site: Secret bay

Cassiopea andromeda

Upside-down jellyfish

Bali, Indonesia 2009
Dive site: Secret bay

Cassiopea andromeda

juvenile Upside-down jellyfish

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

Cassiopea andromeda

juvenile Upside-down jellyfish

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

Cassiopea andromeda

juvenile Upside-down jellyfish

Halmahera, Indonesia 2014
Dive site: Gemaf muck

Cassiopea andromeda

Upside-down jellyfish

Lembeh, Indonesia 2014
Dive site: Police pier II

Cassiopea andromeda

Upside-down jellyfish

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

Cassiopea andromeda

Upside-down jellyfish

Bali, Indonesia 2016
Dive site: Secret bay

Cassiopea frondosa

Upsidedown jelly

Caribbean, Bonaire 2013
Dive site: Tori's reef

Olindias phosphorica?

maybe Cigar jellyfish

Raja ampat, Indonesia 2014
Dive site: Manta sandy

Pelagia noctiluca

Luminescent jellyfish

Halmahera, Indonesia 2014
Dive site: Fish fountain

Pelagia noctiluca

Luminescent jellyfish

Halmahera, Indonesia 2014
Dive site: Fish fountain

Pelagia noctiluca

Luminescent jellyfish

Halmahera, Indonesia 2014
Dive site: Fish fountain

Nausithoe punctata

Tubular stage of jellyfish on sponge

Lembeh, Indonesia 2014
Dive site: Tanjung lampu (night dive)

Nausithoe punctata

Tubular stage of jellyfish on sponge

Bali, Indonesia 2016
Dive site: Bio rock

Aglaophenia cupressina

Stinging hydroid

Bali, Indonesia 2011
Dive site: USAT Liberty

Aglaophenia cupressina

Stinging hydroid

Bali, Indonesia 2011
Dive site: USAT Liberty

Aglaophenia cupressina

Stinging hydroid

Bangka, Indonesia 2017
Dive site: Batu Beka

undetermined Distichopora sp.

?

Bangka, Indonesia 2017
Dive site: Batu lihunu

Dynanema sp.

?

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

maybe Idiellana pristis

?

Lembeh, Indonesia 2014
Dive site: Nudi falls (night dive)

Macrorhynchia phoenicea

Brown stinging hydroid

Bangka, Indonesia 2017
Dive site: Batu lihunu

Millepora dichotoma

fire coral

Cebu, the Philippines 2007
Dive site: Pescador east

Millepora dichotoma

Net fire coral

Marsa alam, Egypt 2012
Dive site: house reef Oasis

Millepora sp.

fire coral

Cebu, the Philippines 2012
Dive site: Pescador, south side

Nemalecium lighti

?

Bangka, Indonesia 2017
Dive site: Batu Gosoh 1

Sertularia sp.

feather hydroid

Bali, Indonesia 2011
Dive site: Kubu, Batuh indah

Sertularia sp.

feather hydroid

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

probably Sertularia sp.

feather hydroid

Raja ampat, Indonesia 2014
Dive site: The passage

Tubularia indivisa

Oaten pipe hydroid or Tall tubularia

Bali, Indonesia 2016
Dive site: Amed, Ghost bay

Tubularia sp.

?

Bali, Indonesia 2009
Dive site: Kalanganyar

Zanclea divergens (black)

?

Bali, Indonesia 2011
Dive site: Seraya

Zanclea divergens (black)

?

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

?

shell with unidentified hydroids

Bali, Indonesia 2009
Dive site: Tulamben, USAT Liberty

?

shell with unidentified hydroids

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

?

probably a hydroid

Caribbean, Bonaire 2013
Dive site: Karpata

?

undetermined tiny hydroids

Cyproideidae sp.

Ladybug amphipods

Bali, Indonesia 2016
Dive site: Tulamben, Drop off

Cyproideidae sp.

Ladybug amphipods

Bali, Indonesia 2016
Dive site: Tulamben, Drop off

undetermined amphipod

with Ascidiophilla alba

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

Ceratoconcha sp.

coral barnacle

Ambon, Indonesia 2010
Dive site: Laha III (night dive)

Ceratoconcha sp.

Coral barnacle

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

Ceratoconcha sp.

Coral barnacles

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

Family Pyrgomatidae

Coral-inhibiting barnacle

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

Family Pyrgomatidae

Coral-inhibiting barnacle

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

Celleporaria sibogae (white)

?

Bali, Indonesia 2011
Dive site: Searaya

Celleporaria sibogae (white)

?

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

Celleporaria sibogae (white)

?

Raja ampat, Indonesia 2014
Dive site: Sardines reef

probably Celleporaria sp.

?

South Australia 2018
Dive site: Rapid bay jetty

probably Celleporaria sp.

?

South Australia 2018
Dive site: Rapid bay jetty

probably Celleporaria sp.

?

South Australia 2018
Dive site: Edithburg jetty

probably Celleporaria sp.

?

South Australia 2018
Dive site: Edithburg jetty

Mesonea radians

?

Cebu, the Philippines 2007
Dive site: Tuble north

family Membraniporidae

undetermined bryozoans

Romblon, the Philippines 2017
Dive site: Bonbon talisay

Reteporellina denticulata

?

Romblon, the Philippines 2017
Dive site: San Pedro

Triphyllozoon inornatum

?

Negros, the Philippines 2012
Dive site: Pyramids

Triphyllozoon moniliferum

Lace bryozoan

South Australia 2018
Dive site: Rapid bay jetty

probably Watersipora subtorquata

undetermined bryozoans

Bangka, Indonesia 2017
Dive site: Busa bora 3

?

probably bryozoans

South Australia 2018
Dive site: Edithburg jetty

Globorotalia sp.

undetermined Foraminifera

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

Marginopora vertebralis

single-celled amoeboid protists

Anilao, the Philippines 2015
Dive site: house reef Portulano

Marginopora vertebralis

single-celled amoeboid protists

Anilao, the Philippines 2015
Dive site: house reef Portulano

Marginopora vertebralis

single-celled amoeboid protists

Anilao, the Philippines 2015
Dive site: house reef Portulano

Marginopora vertebralis

single-celled amoeboid protists

Anilao, the Philippines 2015
Dive site: house reef Portulano

Marginopora vertebralis

single-celled amoeboid protists

Romblon, the Philippines 2017
Dive site: Logbon, Sanctuary

Marginopora vertebralis

single-celled amoeboid protists

Romblon, the Philippines 2017
Dive site: Tirzo

Nerocila laticauda

on Aracana ornata, female

South Australia 2018
Dive site: Port Hughes jetty

Nerocila laticauda

on Upeneichthys vlamingii

South Australia 2018
Dive site: Edithburg jetty

Bopyrid isopod

on Periclimenes imperator

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

Bopyrid isopod carrying eggs

on shrimp Miopontonia yongei

Bali, Indonesia 2011
Dive site: Tulamben, Coral garden

Bopyrid isopod carrying eggs

on shrimp Miopontonia yongei

Bali, Indonesia 2011
Dive site: Tulamben, Coral garden

Bopyrid isopod

on Periclimenes albolineatus

Lembeh, Indonesia 2014
Dive site: Jahir

Bopyrid isopod

on Ancylomenes magnificus

Anilao, the Philippines 2015
Dive site: Ligpo cavern

probably Cirolanid isopod

on cardinalfish Apogon capricornis

Halmahera, Indonesia 2010
Dive site: Kampung witou

Caligoida sp.

Copepod parasite on Cromileptes altivelis

Lembeh, Indonesia 2010
Dive site: Police pier

Copepod parasite

on Ostorhinchus nigrofasciatus

Halmahera, Indonesia 2014
Dive site: Tanjung uli

parasitic isopod

on Kyphosus cinerascens

Raja ampat, Indonesia 2014
Dive site: house reef Kri Eco

probably Cirolanid isopod

on Ostorhinchus nigrofasciatus

Raja ampat, Indonesia 2014
Dive site: Kuburan (night dive)

Santia sp.

undetermined isopod

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

Santia sp.

undetermined isopod

Cebu, the Philippines 2012
Dive site: Kasai point

Santia sp.

undetermined isopod

Cebu, the Philippines 2012
Dive site: Kasai point

Santia sp.

undetermined isopod

Cebu, the Philippines 2012
Dive site: White beach

Santia sp.

undetermined isopod

Halmahera, Indonesia 2014
Dive site: Luleo 1

Santia sp.

undetermined isopod

Romblon, the Philippines 2017
Dive site: Suwa

Santia sp.

undetermined isopod

Romblon, the Philippines 2017
Dive site: Bonbon broken coconut

Schizobopyrina sp.?

on Ancylomenes sarasvati

Halmahera, Indonesia 2014
Dive site: Fish fountain

family Sphaeromatidae

undetermined isopod

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

family Sphaeromatidae

undetermined isopod

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

family Sphaeromatidae

undetermined isopod

South Australia 2018
Dive site: Rapid bay jetty

family Sphaeromatidae

undetermined isopod

South Australia 2018
Dive site: Edithburg jetty

family Sphaeromatidae

undetermined isopod

South Australia 2018
Dive site: Edithburg jetty (night dive)

family Sphaeromatidae

undetermined isopod

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

family Sphaeromatidae

undetermined isopod

South Australia 2018
Dive site: Rapid bay jetty

family Sphaeromatidae

undetermined isopod

South Australia 2018
Dive site: Rapid bay jetty

Acrochordus javanicus

Elephant trunk sea snake

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

Acrochordus javanicus

Elephant trunk sea snake

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

Acrochordus javanicus

Elephant trunk sea snake

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

Enhydrina schistosa

Beaked sea snake

Bali, Indonesia 2016
Dive site: Secret bay

Enhydrina schistosa

Beaked sea snake

Bali, Indonesia 2016
Dive site: Secret bay

Enhydrina schistosa

Beaked sea snake

Anda, the Philippines 2018
Dive site: Secret place (night dive)

Laticauda colubrina

Banded seasnake

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

Laticauda colubrina

Banded seasnake

Lembeh, Indonesia 2008
Dive site: Kuda laut II

Laticauda colubrina

Banded seasnake

Ambon, Indonesia 2010
Dive site: Devion point

Laticauda colubrina

Banded seasnake

Cebu, the Philippines 2012
house reef Magic Island Dive Resort

?

undetermined sea spider

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

?

undetermined sea spider

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

?

undetermined sea spider

Lembeh, Indonesia 2010
Dive site: Nudi falls (night dive)

?

undetermined sea spiders

Caribbean, Bonaire 2013
Dive site: house reef Buddy (night dive)

?

undetermined sea spider

Raja ampat, Indonesia 2014
Dive site: Blue magic

maybe Nymphon sp.

?

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

maybe Pseudopallene sp.

?

South Australia 2018
Port Victoria jetty (night dive)

?

undetermined echinoderm 1

Bali, Indonesia 2009
Dive site: Secret bay

?

undetermined echinoderm 2

Bali, Indonesia 2009
Dive site: Secret bay

?

undetermined echinoderm 3

Bali, Indonesia 2009
Dive site: Secret bay

?

?

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

?

mollusc eggs on Halophila ovalis

Bali, Indonesia 2016
Dive site: Puri jati