By species www.diverosa.com Rokus Groeneveld & Sanne Reijs   
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  Cidaridae
EMA-052 Hidden sea urchin, Eucidaris metularia

Eucidaris metularia

Hidden sea urchin

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

EMA-126 Hidden sea urchin, Eucidaris metularia

Eucidaris metularia

Hidden sea urchin

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

BO2-088_Eucidaris_tribuloides_Slate_pencil_urchin

Eucidaris tribuloides

Slate pencil urchin

Caribbean, Bonaire 2021
Dive site: Aquarius

  ASA-313_Goniocidaris_tubaria_Stumpy_pencil_urchin

Goniocidaris tubaria

Stumpy pencil urchin

South Australia 2018
Dive site: Edithburgh jetty

FM2-339 Imperial pencil urchin, Phyllacanthus imperialis

Phyllacanthus imperialis

Imperial pencil urchin

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

FM2-178 Imperial pencil urchin, Phyllacanthus imperialis

Phyllacanthus imperialis

Imperial pencil urchin

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

IRA-046 Imperial sea urchin, Phyllacanthus imperialis

Phyllacanthus imperialis

Imperial sea urchin

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

FAN-074 Phyllacanthus imperialis, Pencil urchin

Phyllacanthus imperialis

Pencil urchin

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

AWA-377_Phyllacanthus_irregularis_Western_slate_pencil_urchin

Phyllacanthus irregularis

Western slate pencil urchin

Western Australia 2020
Dive site: Canal rocks (night dive)

ANS-318_Phyllacanthus_parvispinus

Phyllacanthus parvispinus

?

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

FMI-200_Prionocidaris_verticillata_Gear-wheel_sea_urchin

Plococidaris verticillata

Gear-wheel sea urchin

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

FM2-019 Gear-wheel sea urchin, Prionocidaris verticillata

Plococidaris verticillata

Gear-wheel sea urchin

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

FRO-437_Plococidaris_verticillata

Plococidaris verticillata

Gear-wheel sea urchin

Romblon, the Philippines 2017
Dive site: Bangug 4

FMO-217_Plococidaris_verticillata

Plococidaris verticillata

Gear-wheel sea urchin

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

  Diadematidae
BO2-286_Astropyga_magnifica_Magnificent_urchin

Astropyga magnifica

Magnificent urchin

Caribbean, Bonaire 2021
Dive site: Cliff (night dive)

BO2-389_Astropyga_magnifica_Magnificent_urchin

Astropyga magnifica

Magnificent urchin

Caribbean, Bonaire 2021
Dive site: Windsock (night dive)

IL2-008 Fire urchin, Astropyga sp.

Astropyga radiata

Radiating hatpin urchin

Lembeh, Indonesia 2006
Dive site: Kuda laut

IL2-022 Sea Urchin Crab, Dorippe frascone carrying a Fire urchin, Astropyga sp.

Astropyga radiata

Radiating hatpin urchin

Lembeh, Indonesia 2006
Dive site: Teluk kembahu III

IBA-185 Fire urchin, Astropyga sp.

Astropyga radiata

Radiating hatpin urchin

Bali, Indonesia 2009
Dive site: Kalanganyar

IL4-118 Urchin crab, Dorippe frascone with Radiating hatpin urchin, Astropyga radiata 2

Astropyga radiata

Radiating hatpin urchin on Urchin crab

Lembeh, Indonesia 2010
Dive site: Kuda laut

IL5-120 Urchin crab, Dorippe frascone, with Radiating hatpin urchin, Astropyga radiata

Astropyga radiata

Radiating hatpin urchin on Urchin crab

Lembeh, Indonesia 2014
Dive site: Air bajo III

IB3-206_Astropyga_radiata,_Blue-spotted_urchin

Astropyga radiata

Blue-spotted urchin

Bali, Indonesia 2016
Dive site: Secret bay

IB3-228_Astropyga_radiata,_Blue-spotted_urchin

Astropyga radiata

Blue-spotted urchin

Bali, Indonesia 2016
Dive site: Secret bay

IL6-332_Dorippe_frascone_with_Astropyga_radiata

Astropyga radiata

Radiating hatpin urchin on Urchin crab

Lembeh, Indonesia 2022
Dive site: Air bajo 2

IL6-232_Astropyga_radiata

Astropyga radiata

Blue-spotted urchin

Lembeh, Indonesia 2022
Dive site: Retak Larry

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IB2-292 Rodger's sea urchin, Centrostephanus rodgersii

Centrostephanus rodgersii

Rodger's sea urchin

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

IB2-129 Rodger's sea urchin, Centrostephanus rodgersii

Centrostephanus rodgersii

Rodger's sea urchin

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

ASA-247_Centrostephanus_sp_undetermined_urchin

Centrostephanus sp.

?

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

AWA-077_Centrostephanus_tenuispinis

Centrostephanus tenuispinis

Western hollow-spined urchin

Western Australia 2020
Dive site: Canal rocks (night dive)

  FMI-237 Long-spined sea urchin, Diadema setosum

Diadema setosum

Long-spined sea urchin

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

IL6-283_Diadema_setosum_Long-spined_sea_urchin_2

Diadema setosum

Long-spined sea urchin

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

IL6-282_Diadema_setosum_Long-spined_sea_urchin_1

Diadema setosum

Long-spined sea urchin

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

IBA-316 Blue eye urchin, Diadema savignyi

Diadema savignyi

Blue eye urchin

Bali, Indonesia 2009
Dive site: Turtleneck (night dive)

FAN-189 Diadema savignyi, Banded diadem urchin

Diadema savignyi

Banded diadem urchin

Anilao, the Philippines 2015
dive site: Secret garden

BO2-419_Diadema_antillarum_Long-spined_sea_urchin

Diadema antillarum

Long-spined sea urchin

Caribbean, Bonaire 2021
Dive site: Kalebas (night dive)

  MKA-05 Double spined urchin, Echinothrix calamaris

Echinothrix calamaris

Double spined urchin

Kapalai, Malaysia 2003
Dive site: house reef, Mandarin valley

IGI-065 Double spined urchin, Echinothrix calamaris

Echinothrix calamaris

Double spined urchin

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

FAN-102 Echinothrix calamaris, Banded sea urchin

Echinothrix calamaris

Banded sea urchin

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

IAM-146 Stinging sea urchin, Echinothrix calamaris

Echinothrix calamaris

Double spined urchin

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

IBA-336 Black diadema sea urchin, Echinothrix diadema

Echinothrix diadema

Black diadema sea urchin

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

IB2-233 unidentified sea urchin, Echinothrix sp.

Echinothrix sp.

unidentified sea urchin

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

  Echinometridae
FCA-72 Sea urchin, Echinometra mathaei

Echinometra mathaei

Matha's sea urchin

Cabilao, Philippines 2005
Dive site: Lighthouse

FMI-213 Matha's sea urchin, Echinometra mathae

Echinometra mathaei

Matha's sea urchin

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

IBA-093 Matha's sea urchin or Burrowing urchin, Echinometra mathaei

Echinometra mathaei

Matha's sea urchin/Burrowing urchin

Bali, Indonesia 2009
Dive site: Seraya

IB2-149 Matha's sea urchin or Burrowing urchin, Echinometra mathaei

Echinometra mathaei

Matha's sea urchin/Burrowing urchin

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

FM2-107 Matha's sea urchin, Echinometra mathae

Echinometra mathaei

Matha's sea urchin

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

EMA-130 Matha's sea urchin or Burrowing urchin, Echinometra mathaei

Echinometra mathaei

Matha's sea urchin

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

FAN-458 Echinometra mathaei, Rock-boring urchin

Echinometra mathaei

Rock-boring urchin

Anilao, the Philippines 2015
dive site: Seapipe (night dive)

FAN-296 Echinometra mathaei, Rock-boring urchin

Echinometra mathaei

Rock-boring urchin

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

FRO-200_Echinometra_mathaei_Rock-boring_urchin

Echinometra mathaei

Rock-boring urchin

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

FMO-017_Echinometra_mathaei_Mathaes_sea_urchin

Echinometra mathaei

Rock-boring urchin

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

FMO-154_Echinometra_mathaei_Mathaes_sea_urchin_2

Echinometra mathaei

Rock-boring urchin

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

IL6-418_Echinometra_mathaei_Burrowing_urchin

Echinometra mathaei

Burrowing urchin

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

  BON-151 Reef urchin, Echinometra viridis

Echinometra viridis

Reef urchin

Caribbean, Bonaire 2013
Dive site: Windsock (night dive)

BO2-379_Echinometra_viridis_Reef_urchin

Echinometra viridis

Reef urchin

Caribbean, Bonaire 2021
Dive site: Windsock (night dive)

AVI-021_Heliocidaris_erythrogramma

Heliocidaris erythrogramma

Purple sea urchin

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

AVI-059_Heliocidaris_erythrogramma_2

Heliocidaris erythrogramma

Purple sea urchin

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

AVI-084_Heliocidaris_erythrogramma

Heliocidaris erythrogramma

Purple sea urchin

Australia, Victoria 2018
Dive site: Blairgowrie pier

AVI-134_Heliocidaris_erythrogramma

Heliocidaris erythrogramma

Purple sea urchin

Australia, Victoria 2018
Dive site: Flinders pier

AVI-184_Heliocidaris_erythrogramma_1

Heliocidaris erythrogramma

Purple sea urchin

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

AWA-021_Heliocidaris_erythrogramma_Purple_urchin

Heliocidaris erythrogramma

Purple sea urchin

Western Australia 2020
Dive site: Point peron

AWA-259_Heliocidaris_erythrogramma_skeleton_Purple_urchin_skeleton

Heliocidaris erythrogramma

Purple sea urchin skeleton

Western Australia 2020
Dive site: Ammo jetty

AWA-334_Heliocidaris_erythrogramma_Purple_sea_urchin_1

Heliocidaris erythrogramma

Purple sea urchin

Western Australia 2020
Dive site: Point peron

AWA-335_Heliocidaris_erythrogramma_Purple_sea_urchin_2

Heliocidaris erythrogramma

Purple sea urchin

Western Australia 2020
Dive site: Point peron

AWA-340_Heliocidaris_erythrogramma_Purple_sea_urchin

Heliocidaris erythrogramma

Purple sea urchin

Western Australia 2020
Dive site: Point peron

AWA-572_Heliocidaris_erythrogramma_Purple_sea_urchin

Heliocidaris erythrogramma

Purple sea urchin

Western Australia 2020
Coogee marina, north wall (night dive)

ANS-440_Heliocidaris_erythrogramma_Purple_urchin

Heliocidaris erythrogramma

Purple sea urchin

Australia, New South Wales 2023
Dive site: Little Manley

  Slate pencil sea urchin, Heterocentrotus mammillatus

Heterocentrotus mamillatus

Slate pencil sea urchin

Wadi Lahami, Egypt 2002
Dive site: Torfa

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  Temnopleuridae
ASA-046_problably_Amblypneustes_pallidus_Pale_sea_urchin

probably Amblypneustes pallidus

Pale sea urchin

South Australia 2018
Dive site: Edithburgh jetty

ASA-321_Amblypneustes_sp_maybe_Amblypneustes_elevatus

maybe Amblypneustes elevatus

?

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

ASA-256_Holopneustes_inflatus_inflated_sea_urchin

Holopneustes inflatus

Inflated sea urchin

South Australia 2018
Dive site: Edithburgh jetty

FMI-013 Jewel-case or Globular sea urchin, Mespilia globulus

Mespilia globulus

Jewel-case or Globular sea urchin

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

IL1-54 Jewel-case sea urchin, Tripneustes gratilla

Mespilia globulus

Jewel-case or Globular sea urchin

Lembeh, Indonesia 2002
Dive site: Benteng

FM2-269 Jewel-case or Globular sea urchin, Mespilia globulus

Mespilia globulus

Jewel-case or Globular sea urchin

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

FMO-131_Mespilia_globulus_Jewel-case_or_Globular_sea_urchin

Mespilia globulus

Jewel-case or Globular sea urchin

Philippines, Anda 2018
Dive site: house reef Magic Oceans

EMA-050 Bald-patch urchin, Microcyphus rousseaui 1

Microcyphus rousseaui

Bald-patch urchin

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

EMA-194 Bald-patch urchin, Microcyphus rousseaui 2

Microcyphus rousseaui

Bald-patch urchin

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

FN2-170_probably_Salmacis_belli

probably Salmacis belli

?

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

FN2-014_probably_Salmacis_bicolor_Two-toned_salmacis_sea_urchin

probably Salmacis bicolor

Two-toned salmacis sea urchin

Negros, the Philippines 2019
Dive site: (next to) Ducomi pier

FRO-400_Salmacis_sphaeroides_Green_sea_urchin

Salmacis sphaeroides

Green sea urchin

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

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ANS-045_Temnopleurus_alexandri_Alexanders_sea_urchin

Temnopleurus alexandri

Alexanders sea urchin

Australia, New South Wales 2023
Dive site: Clifton gardens

ANS-280_Temnopleurus_alexandri_Alexanders_sea_urchin

Temnopleurus alexandri

Alexanders sea urchin

Australia, New South Wales 2023
Dive site: Bare island

ANS-272_Temnopleurus_alexandri

Temnopleurus alexandri

Alexanders sea urchin

Australia, New South Wales 2023
Dive site: Bare island

  AWA-042_hidden_Temnopleurus_michaelseni

Temnopleurus michaelseni 1

hiding under debri

Western Australia 2020
Dive site: Kwinana grain terminal

AWA-043_Temnopleurus_michaelseni

Temnopleurus michaelseni 2

(upside down)

Western Australia 2020
Dive site: Kwinana grain terminal

AWA-631_hidden_Temnopleurus_michaelseni_1

Temnopleurus michaelseni 1

hiding under debri

Western Australia 2020
Dive site: Kwinana grain terminal

AWA-632_Temnopleurus_michaelseni_1

Temnopleurus michaelseni 2

(upside down)

Western Australia 2020
Dive site: Kwinana grain terminal

AWA-633_hidden_Temnopleurus_michaelseni_2

Temnopleurus michaelseni 1

hiding under debri

Western Australia 2020
Dive site: Kwinana grain terminal

AWA-634_Temnopleurus_michaelseni_2

Temnopleurus michaelseni 2

(upside down)

Western Australia 2020
Dive site: Kwinana grain terminal

   
  Toxopneustidae
BO2-353_Lytechinus_variegatus_Variegated_sea_urchin_2

Lytechinus variegatus

Variegated urchin

Caribbean, Bonaire 2021
Dive site: Pink beach

BO2-357_Lytechinus_variegatus_Variegated_sea_urchin

Lytechinus variegatus

Variegated urchin

Caribbean, Bonaire 2021
Dive site: Kalabas (night dive)

BON-160 probably Variegated urchin, Lytechinus variegatus

Lytechinus variegatus (?)

probably Variegated urchin

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

BON-153_Lytechinus_williamsi_Jewel_urchin

Lytechinus williamsi

Jewel urchin

Caribbean, Bonaire 2013
Dive site: Windsock (night dive)

BO2-089_Lytechinus_williamsi_Jewel_urchin

Lytechinus williamsi

Jewel urchin

Caribbean, Bonaire 2021
Dive site: Something special (night dive)

IL3-280 Stained collector urchin, Pseudoboletia maculata

Pseudoboletia maculata

Stained collector urchin

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

IL4-202 Stained collector urchin, Pseudoboletia maculata

Pseudoboletia maculata

Stained collector urchin

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

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IL3-133 Poison claw sea urchin, Toxopneustes pileolus

Toxopneustes pileolus

Poison claw sea urchin

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

IL4-187 Poison claw sea urchin, Toxopneustes pileolus 1

Toxopneustes pileolus

Poison claw sea urchin

Lembeh, Indonesia 2010
Dive site: Tanduk rusa

IL4-034 Poison claw sea urchin, Toxopneustes pileolus 2

Toxopneustes pileolus

Poison claw sea urchin

Lembeh, Indonesia 2010
Dive site: Tanduk rusa

FM2-041 Flower urchin, Toxopneustes pileolus

Toxopneustes pileolus

Flower urchin

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

FAN-278 Toxopneustes pileolus, Flower urchin

Toxopneustes pileolus

Flower urchin

Anilao, the Philippines 2015
Dive site: Secret bay

FAN-282 skeleton of Toxopneustes pileolus, Flower Urchin

Toxopneustes pileolus

Flower urchin (shell)

Anilao, the Philippines 2015
Dive site: Secret bay

FAN-175 Toxopneustes pileolus, Flower Urchin 1

Toxopneustes pileolus 1

Flower urchin

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

FAN-177 Toxopneustes pileolus, Flower Urchin 3

Toxopneustes pileolus 2

Flower urchin

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

FAN-176 Toxopneustes pileolus, Flower Urchin 2

Toxopneustes pileolus 3

Flower urchin

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

FN2-185_Toxopneustes_pileolus_Flower_urchin

Toxopneustes pileolus

Flower urchin

Negros, Philippines 2019
Dive site: Pyramids

FMI-236 Cake urchin, Tripneustes gratilla

Tripneustes gratilla

Collector urchin or Sector sea urchin

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

IAM-298 Cake sea urchin, Tripneustes gratilla

Tripneustes gratilla

Collector urchin or Sector sea urchin

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

IL4-244 Cake sea urchin, Tripneustes gratilla

Tripneustes gratilla

Collector urchin or Sector sea urchin

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

FM2-101 Cake sea urchin, Tripneustes gratilla

Tripneustes gratilla

Collector urchin or Sector sea urchin

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

IRA-100 Cake sea urchin, Tripneustes gratilla

Tripneustes gratilla

Collector urchin or Sector sea urchin

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

FAN-178 Tripneustes gratilla, Collector Urchin

Tripneustes gratilla

Collector urchin or Sector sea urchin

Anilao, the Philippines 2015
dive site: Matu (night dive)

IMI-180_Tripneustes_gratilla_Collector_urchin

Tripneustes gratilla

Collector urchin or Sector sea urchin

Bangka, Indonesia 2017
Dive site: Tanjung Totohe

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EDS-25_Tripneustes_gratilla_elatensis

Tripneustes gratilla elatensis

Cake sea urchin

Deep South, Egypt 2004
Dive site: Fury Shoal, Abu Galawa

EHA-15_Tripneustes_gratilla_elatensis

Tripneustes gratilla elatensis

Cake sea urchin

Hamata, Egypt 2007
Dive site: house reef Zabargad north

EMA-099_Tripneustes_gratilla_elatensis

Tripneustes gratilla elatensis 1

Cake sea urchin

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

EMA-007_Tripneustes_gratilla_elatensis

Tripneustes gratilla elatensis 2

Cake sea urchin

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

EMA-096_Tripneustes_gratilla_elatensis

Tripneustes gratilla elatensis

Cake sea urchin

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

EHA-42_Tripneustes_sp.

Tripneustes gratilla elatensis

Cake sea urchin

Hamata, Egypt 2007
Dive site: house reef Zabargad north

BO2-008_Tripneustes_ventricosus_West_Indian_sea_egg

Tripneustes ventricosus

West Indian sea egg

Caribbean, Bonaire 2021
Dive site: Salt pier (night dive)

BO2-354_Tripneustes_ventricosus_West_Indian_sea_egg

Tripneustes ventricosus

West Indian sea egg

Caribbean, Bonaire 2021
Dive site: Pink beach

BO2-401_Tripneustes_ventricosus_West_Indian_sea_egg

Tripneustes ventricosus

West Indian sea egg

Caribbean, Bonaire 2021
Dive site: Jeff Davis

  Other urchins
FPG-21_Asthenosoma_ijimai

Asthenosoma ijimai

Ijima’s Sea Urchinn

Puerto Galera, Philippines 2005
Dive site: Sabang wrecks

EMA-013 Red Sea fire urchin, Asthenosoma marisrubi

Asthenosoma marisrubi

Red sea fire urchin

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

IBA-292 Fire urchin, Asthenosoma varium

Asthenosoma varium

Variable fire urchin

Bali, Indonesia 2009
Dive site: Seraya

FAN-136 Asthenosoma varium, Variable fire urchin

Asthenosoma varium

Variable fire urchin

Anilao, the Philippines 2015
dive site: Bethlehem

FM2-226 Pohli's sea urchin, Parasalenia pohlii

Parasalenia poehlii

Pohli's sea urchin

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

  Heart urchins & sand dollars
ANS-323_Clypeaster_australasiae

Clypeaster australasiae

?

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

FMO-237_Clypeaster_reticulatus_Reticulated_sea_biscuit

Clypeaster reticulatus

Reticulated sea biscuit

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

IH2-114 biscuit urchin, Clypeaster sp.

Clypeaster sp.

biscuit urchin

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

FM2-211 Oval heart urchin, Eurypatagus ovalis

Eurypatagus ovalis

Oval heart urchin

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

FAN-289 Eurypatagus ovalis, heart urchin

Eurypatagus ovalis

Oval heart urchin

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

IL5-126_Eurypatagus_ovalis

Eurypatagus ovalis

Oval heart urchin

Lembeh, Indonesia 2014
house reef Divers Lodge Lembeh (night dive)

  IB3-029_Jacksonaster_depressum_1

Jacksonaster depressum

Depressed sand dollars

Bali, Indonesia 2016
Dive site: Puri jati

IB3-247_Jacksonaster_depressum_2

Jacksonaster depressum

Depressed sand dollars

Bali, Indonesia 2016
Dive site: Puri jati

IB3-257_Jacksonaster_depressum_Depressed_sand_dollar_1

Jacksonaster depressum

Depressed sand dollar

Bali, Indonesia 2016
Dive site: Puri jati

_Jacksonaster_depressum_Depressed_sand_dollar_2

Jacksonaster depressum

Depressed sand dollar

Bali, Indonesia 2016
Dive site: Puri jati

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IL2-021 Heart urchin, Lovenia elongata

Lovenia elongata

Elongate heart urchin

Lembeh, Indonesia 2006
Dive site: Teluk kembahu III

IL3-281 Elongate heart urchin, Lovenia elongata

Lovenia elongata

Elongate heart urchin

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

IAM-230 Elongate heart urchin, Lovenia elongata

Lovenia elongata

Elongate heart urchin

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

FN2-127_Lovenia_elongata

Lovenia elongata

Elongate heart urchin

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

FN2-342_maybe_Lovenia_elongata_Heart_urchin

Lovenia elongata

Elongate heart urchin

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

  FMI-050 Sand dollar, Maretia planulata

Maretia planulata

Fine-spined heart urchin

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

IL4-270 Heart urchin, Maretia planulata

Maretia planulata

Fine-spined heart urchin

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

FM2-279 Heart urchin, Maretia planulata

Maretia planulata

Fine-spined heart urchins

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

IB3-030_Maretia_planulata,_fine-spined_heart_urchins

Maretia planulata

Fine-spined heart urchin

Bali, Indonesia 2016
Dive site: Puri jati

IB3-258_Maretia_planulata,_fine-spined_heart_urchin

Maretia planulata

Fine-spined heart urchin

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

FN2-282_Maretia_planulata

Maretia planulata

Fine-spined heart urchin

Negros, Philippines 2019
Dive site: Dauin north (night dive)

BON-129 Red heart urchin, Meoma ventricosa

Meoma ventricosa

Red heart urchin

Caribbean, Bonaire 2013
Dive site: Reef scientifico (night dive)

BO2-241_Meoma_ventricosa_Red_heart_urchin

Meoma ventricosa

Red heart urchin

Caribbean, Bonaire 2021
Dive site: Kalabas (night dive)

AWA-053_Peronella_lesueuri_Pink_sand_dollar

Peronella lesueuri

Pink sand dollar

Western Australia 2020
Dive site: Woodman point (night dive)

AWA-628_Peronella_lesueuri_Pink_sand_dollar

Peronella lesueuri

Pink sand dollar

Western Australia 2020
Dive site: Kwinana grain terminal

IL5-072 Sea urchin crab, Dorippe frascone, carrying a sand dollar, Peronella sp.

Peronella sp.

sand dollar

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

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FAN-451 unidetermined heart urchin

?

undetermined heart urchin

Anilao, the Philippines 2015
dive site: Seapipe (night dive)

FMO-269_undetermined_heart_urchin

?

undetermined heart urchin

Philippines, Anda 2018
Dive site: Larry’s corner

FRO-042_skeleton_dead_sea_urchin

?

skeleton dead urchin

Romblon, the Philippines 2017
Dive site: Logbon inside

FMO-135_sceleton_sea_urchin

?

skeleton dead urchin

Philippines, Anda 2018
Dive site: house reef Magic Oceans

BO2-272_undetermined_sea_urchin_skeleton

?

skeleton dead urchin

Caribbean, Bonaire 2021
Dive site: Salt pier

  Sea urchin hitch hikers

FAN-091 Allopontonia brockii, Brook's urchin shrimp

Allopontonia iaini

?

on Asthenosoma varium

Anilao, the Philippines 2015
Dive site: Matu

IL3-057 Coleman shrimp, Periclimenes colemani

Periclimenes colemani

Coleman shrimp

on Asthenosoma varium

Lembeh, Indonesia 2008
Dive site: Police pier II

IAM-121 Coleman shrimp, Periclimenes colemani

Periclimenes colemani

Coleman shrimp

on Asthenosoma varium

Ambon, Indonesia 2010
Dive site: Laha I

IAM-122 Zebracrab, Zebrida adamsii

Zebrida adamsii

Zebracrab

on Asthenosoma varium

Ambon, Indonesia 2010
Dive site: Laha I

IAM-244 Zebracrab, Zebrida adamsii

Zebrida adamsii

Zebracrab

on Asthenosoma varium

Ambon, Indonesia 2010
Dive site: Laha II

FMO-107_maybe_Lissocarcinus_polybiodes_on_Asthenosoma_varium

maybe Lissocarcinus polybiodes

Sea star swimming crab

on Asthenosoma varium

Anda, Philippines 2018
Dive site: Suba sanctuary

  IL3-134 Red urchin swimming crab, Lissocarcinus arkati

Lissocarcinus arkati

Red urchin swimming crab

on Astropyga radiata

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

IL4-024 Emperor snapper, Lutjanus sebae, hiding in a Radiating hatpin urchin, Astropyga radiata

Lutjanus sebae

seeking protection with a

Astropyga radiata

Lembeh, Indonesia 2010
Dive site: Teluk kembahu II

FRO-149_Sandimenes_hirsutus_in_Astropyga_radiata

Sandimenes hirsutus

?

on Astropyga radiata

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

IL1-45, Zebracrab, Zebrida adamsii on Fire urchin, Astropyga sp.

Zebrida adamsii

juvenile Zebracrab

on Astropyga radiata

Lembeh, Indonesia 2002
Dive site: Jahir

IL2-034 Zebracrab, Zebrida adamsii on Fire urchin, Astropyga sp.

Zebrida adamsii

Zebracrab

on Astropyga radiata

Lembeh, Indonesia 2006
Dive site: Teluk kembahu III

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IBA-110 Sea urchin shrimp, Stegopontonia commensalis

Stegopontonia commensalis

Urchin shrimp

on Diadema setosum

Bali, Indonesia 2009
Dive site: Turtle neck

IAM-061 Urchin shrimp, Stegopontonia commensalis 1

Stegopontonia commensalis

Urchin shrimp

on Diadema setosum

Ambon, Indonesia 2010
Dive site: Laha I / II

IL4-055 Urchin clingfish, Diademichthys lineatus

Diademichthys lineatus

seeking protection with a

Diadema savignyi

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

  FMI-162 Sea urchin crab, Echinoecus pentagonus

Echinoecus pentagonus

Sea urchin crab

on Echinothrix calamaris

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

IAM-305 juvenile Sea urchin crab, Echinoecus pentagonus

Echinoecus pentagonus

juvenile Sea urchin crab

on Echinothrix calamaris

Ambon, Indonesia 2010
Dive site: DJ point

IMI-303_Coeloplana_bannwarthii

Coeloplana bannwarthii

?

on Echinothrix calamaris

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

IMI-100_Gnathophylloides_mineri_Urchin_bumblebee_shrimp

Gnathophylloides mineri

Urchin bumblebee shrimp

on Tripneustes gratilla

Bangka, Indonesia 2017
Dive site: Batu Beka

IL4-125 Zebracrab, Zebrida adamsii in Cake urchin, Tripneustes gratilla

Zebrida adamsii

Zebracrab

on Tripneustes gratilla

Lembeh, Indonesia 2010
Dive site: Hairball II

IL4-173 Zebracrab, Zebrida adamsii

Zebrida adamsii

Zebracrab

on Tripneustes gratilla

Lembeh, Indonesia 2010
Dive site: Teluk kembahu II

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IL2-009 Zebracrab, Zebrida adamsii on Flower urchin, Toxopneustes pileolus

Zebrida adamsii

Zebracrab

on Toxopneustes pileolus

Lembeh, Indonesia 2006
Dive site: Kuda laut