Achelous sebae

Ocellate swimming crab

Caribbean, Bonaire 2013
Windsock (night dive)

Achelous sebae

Ocellate swimming crab

Caribbean, Bonaire 2021
Kalabas (night dive)

Caphyra loevis

Xenia swimming crab

Lembeh, Indonesia 2022
Dive site: Pantai parigi (night dive)

Caphyra loevis

Xenia swimming crab

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

probably Caphyra loevis

Xenia swimming crab

Romblon, the Philippines 2023
Dive site: Magnificat

Caphyra unidentata

?

Romblon, the Philippines 2023
Dive site: Anchor bay

Caphyra sp.

(Xenia swimming crab)

Lembeh, Indonesia 2002
Dive site: Benteng

Caphyra sp.

(Xenia swimming crab)

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

Caphyra sp.

(Xenia swimming crab)

Bali, Indonesia 2016
Padang bay, Bloo lagoon (night dive)

Caphyra sp.

(Xenia swimming crab)

Bali, Indonesia 2016
Dive site: Tulamben, Drop off

Charybdis (charybdis) feriata 1

Crucifix crab

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

Charybdis (charybdis) feriata 2

Crucifix crab

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

Charybdis granulata

Granulate swimming crab

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

Charybdis natator

Ridged swimming crab

Bali, Indonesia 2009
Dive site: Kalanganyar

Charybdis natator 1

Ridged swimming crab

Ambon, Indonesia 2010
Dive site: Hatiwe

Charybdis natator 2

Ridged swimming crab

Ambon, Indonesia 2010
Dive site: Hatiwe

Charybdis natator

juvenile Ridged swimming crab

Negros, Philippines 2012
Dive site: punta

Charybdis natator

juvenile Ridged swimming crab

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

Charybdis natator

Ridged swimming crab

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

Charybdis natator

Ridged swimming crab

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

Charybdis natator

Ridged swimming crab

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

Charybdis natator

Ridged swimming crab

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

Charybdis paucidentata

Red swimming crab

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

Charybdis paucidentata

Red swimming crab

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

Charybdis (charybdis) hellerii

Spiny Hands

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

Charybdis sp.

maybe Charybdis riversandersoni

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

Charybdis sp.

Ch. hongkongensis or Ch. truncata?

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

Charybdis sp.

undetermined swimming crab

Anda, Philippines 2018
Dive site: house reef Magic Oceans (night dive)

Charybdis sp. 1

undetermined swimming crab

Negros, Philippines 2019
Dive site: Pyramids

Charybdis sp. 2

undetermined swimming crab

Negros, Philippines 2019
Dive site: Pyramids

Cycloachelous granulatus

?

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

maybe Liocarcinus corrugatus

?

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

Lissocarcinus arkati

Red urchin swimming crab

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

Lissocarcinus laevis

Harlequin crab

Cabilao, Philippines 2005
Dive site: Lighthouse

Lissocarcinus laevis

Harlequin crab

Lembeh, Indonesia 2008
Dive site: Nudi retreat (night dive

Lissocarcinus laevis

Harlequin crab

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

Lissocarcinus laevis

Harlequin crab

Bali, Indonesia 2009
Dive site: Turtle neck (night dive)

Lissocarcinus laevis

Harlequin crab

Ambon, Indonesia 2010
Dive site: Laha I/II

Lissocarcinus laevis

Harlequin crab

Negros, Philippines 2012
Dive site: punta

Lissocarcinus laevis

Harlequin crab

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

Lissocarcinus laevis

Harlequin crab

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

Lissocarcinus laevis

Harlequin crab

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

Lissocarcinus laevis

Harlequin crab

Anda, Philippines 2018
Dive site: Dapdap

Lissocarcinus laevis

Harlequin crab

Anda, Philippines 2018
Dive site: Larry’s corner

Lissocarcinus laevis

Harlequin crab

Anda, Philippines 2018
Dive site: Dapdap (night dive)

Lissocarcinus laevis

Harlequin crab

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

Lissocarcinus laevis

Harlequin crab

Anilao, the Philippines 2023
Dive site: Sun view (Mural) (night dive)

Lissocarcinus laevis

Harlequin crab

Anilao, the Philippines 2023
Dive site: El pinoy (night dive)

Lissocarcinus orbicularis

juvenile Sea cucumber crab

Lembeh, Indonesia 2008
Dive site: Pulau Serena

Lissocarcinus orbicularis

juvenile Sea cucumber crabs

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

Lissocarcinus orbicularis

Sea cucumber crabs

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

Lissocarcinus orbicularis

juvenile Sea cucumber crab

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

Lissocarcinus orbicularis

Sea cucumber crab

Lembeh, Indonesia 2010
Dive site: Kuda laut I

Lissocarcinus orbicularis

Sea cucumber crab

Halmahera, Indonesia 2014
Dive site: Pasir putih (night dive)

Lissocarcinus orbicularis

Sea cucumber crab

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

Lissocarcinus orbicularis

juvenile Sea cucumber crab

Raja ampat, Indonesia 2014
Dive site: 5 Rocks

Lissocarcinus orbicularis

Sea cucumber crab

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

Lissocarcinus orbicularis

Sea cucumber crab

Anda, Philippines 2018
Dive site: Dapdap (night dive)

Lissocarcinus orbicularis

Sea cucumber crab

Manado bay, Indonesia 2022
Dive site: Circus critter 3 (night dive)

Lissocarcinus orbicularis

juvenile Sea cucumber crabs

Manado bay, Indonesia 2022
Dive site: Catamaran

Lissocarcinus orbicularis

Sea cucumber crab

Anilao, the Philippines 2023
Dive site: Secret bay

Lissocarcinus orbicularis

Sea cucumber crab

Anilao, the Philippines 2023
Dive site: Dapdap

Lissocarcinus orbicularis

(with Gnathophyllum americanum)

Bali, Indonesia 2024
Dive site: Blue lagoon (night dive)

maybe Lissocarcinus polybiodes

Sea star swimming crab?

Anda, Philippines 2018
Dive site: Suba sanctuary

Lissocarcinus polybiodes

Sea star swimming crab

Manado bay, Indonesia 2022
Dive site: Circus critter 1 (night dive)

Lupocycloporus gracilimanus

(probably)

Lembeh, Indonesia 2022
Dive site: Jahir (night dive)

Lupocycloporus gracilimanus

(probably)

Lembeh, Indonesia 2022
Dive site: Jahir (night dive)

Lupocycloporus gracilimanus

(probably)

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

Lupocyclus philippinensis

Scissors crab

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

Lupocyclus philippinensis

Scissors crab with eggs

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

Lupocyclus philippinensis

Scissor swimming crab

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

Lupocyclus philippinensis

Scissors crab with eggs

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

Lupocyclus philippinensis

Scissors crab with worm

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

Lupocyclus philippinensis

Scissors crab with eggs

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

Lupocyclus philippinensis

Scissors crab with eggs

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

Lupocyclus philippinensis

Scissors crabs, pair

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

Lupocyclus philippinensis

Scissors crab with eggs

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

Lupocyclus philippinensis

Scissors crab with worm

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

Lupocyclus philippinensis

Scissors crab

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

Lupocyclus rotundatus

Round spike crabs

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

Lupocyclus rotundatus

Round spike crabs

Bali, Indonesia 2024
Dive site: Sidem (night dive)

Monomia gladiator

Gladiator swimming crab

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

Monomia gladiator 1

Gladiator swimming crab

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

Monomia gladiator 2

Gladiator swimming crab

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

Monomia lucida

Bright monomia

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

Monomia cf. petrea

(Red monomia)

Lembeh, Indonesia 2010
Dive site: Batu lubang

Monomia cf. petrea

(Red monomia)

Lembeh, Indonesia 2014
Dive site: Horse shoe (night dive)

Monomia cf. petrea

(Red monomia) 1

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

Monomia cf. petrea

(Red monomia) 2

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

juvenile Monomia rubromarginatus

?

Australia, New South Wales 2023
Dive site: Nelson bay, Fly point (night dive)

Ovalipes catharus

New Zealand paddle crab

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

Portunus armatus

Blue swimmer crab

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

Portunus armatus

Blue swimmer crab

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

Portunus armatus

Blue swimmer crab, subadult

Western Australia 2020
Dive site: Point peron (night dive)

Portunus pelagicus

male Blue swimmer (or Flower) crab

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

Portunus pelagicus

male Blue swimmer (or Flower) crab

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

Portunus pelagicus

female Blue swimmer crab

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

Portunus pelagicus

male Blue swimmer (or Flower) crab

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

Portunus pelagicus

male Blue swimmer (or Flower) crab

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

Portunus pelagicus

female Blue swimmer crab

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

Portunus pelagicus

male Blue swimmer (or Flower) crab

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

Portunus pelagicus

female Blue swimmer crab

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

Portunus pelagicus

female Blue swimmer crab

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

Portunus pelagicus

male Blue swimmer crab

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

Portunus pelagicus

Blue swimmer crab, subadult

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

Portunus pubescens

Hairy swimming crab

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

Portunus sanguinolentus

Three spot swimming crab

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

Portunus sanguinolentus

Three spot swimming crabs

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

Portunus sanguinolentus

Three spot swimming crab

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

Portunus sanguinolentus

Three spot swimming crab

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

Portunus sanguinolentus

Three spot swimming crab

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

Portunus sanguinolentus

Three spot swimming crab

Western Australia 2020
Dive site: Point peron (night dive)

Portunus tenuipes

Pink swimming crab

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

Portunus tenuipes

Pink swimming crab

Western Australia 2020
Bulk terminal / Bulk jetty (night dive)

probably Portunus sp.

undetermined swimming crab

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

probably Portunus sp.

undetermined swimming crab

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

probably Portunus sp.

undetermined swimming crab

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

probably juvenile Portunus sp.

undetermined swimming crab

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

family Portuniadae

undetermined swimming crab

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

family Portuniadae

undetermined swimming crab

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

family Portunidae

undetermined swimming crab

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

family Portunidae

undetermined swimming crab

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

family Portunidae

undetermined swimming crab 1

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

family Portunidae

undetermined swimming crab 2

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

maybe Thalamita quadrilobata

?

Negros, Philippines 2012
Dive site: house reef Atlantis (night dive)

maybe Thalamita quadrilobata

?

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

Thranita coeruleipes

?

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

Thranita coeruleipes

?

Anilao, the Philippines 2023
Dive site: Secret garden

Thalamita prymna

?

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

maybe Thranita pseudopelsarti

?

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

probably Thranita pseudopelsarti

?

Lembeh, Indonesia 2022
Dive site: Bianca (night dive)

probably Thalamita sp.

?

Bali, Indonesia 2011
house reef Kubu Indah (night dive)

Xiphonectes longispinosus

Long-spined swimming crab

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

Xiphonectes macrophthalmus

Spiny swimming crab

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

probably Xiphone. macrophthalmus

Spiny swimming crab

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

Xiphonectes spiniferus

Thorny swimming crab

Cebu, Philippines 2012
house reef Magic island (night dive)

Xiphonectes spiniferus

Thorny swimming crab

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

maybe Xiphonectes spiniferus

Thorny swimming crab

Anda, Philippines 2018
Dive site: Dapdap (night dive)

Xiphonectes sp.

Red-spotted xiphonectes

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

Xiphonectes sp.

?

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

Xiphonectes sp.

?

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

Xiphonectes sp.

?

Anilao, the Philippines 2023
Dive site: house reef Crystal blue (night dive)

?

undetermined swimming crab

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

?

molting unidentified swimming crab

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

?

mating after molting, undet. crabs

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

?

undetermined swimming crabs

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

?

molted swimming crab

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

?

undetermined swimming crab

Cebu, Philippines 2007
Dive site: Pescador south (night dive)

?

undetermined swimming crab

Western Australia 2020
Dive site: Kwinana grain terminal

?

undetermined swimming crab

Lembeh, Indonesia 2022
Dive site: Batu lubang zero (night dive)