Urchins / Sand Dollars

Sea Urchin (Toxopneustes pileolus) foraging over rocky reef with debris attached to upper surface.
Sea Urchin (Toxopneustes pileolus) foraging over rocky reef with debris attached to upper surface. single one alone lonely isolated individual spots spotted dot dots dotted spot speckled specks spike spikes spiked spine spines sharp point pointed barb barbed sting stings stinger stinging stingers toxic toxin poison poisonous poisonos round rounded Various Invert |Sea Urchin (Toxopneustes pileolus)

Sea Urchins (Diadema setosum)
Sea Urchin (Diadema setosum) spike spikes spiked spine spines sharp point pointed brittle slender Various Invert |Sea Urchins (Diadema setosum)

Sea Urchin (Toxopneustes pileolus) foraging over rocky reef with debris attached to upper surface.
Sea Urchin (Toxopneustes pileolus) foraging over rocky reef with debris attached to upper surface. single one alone lonely isolated individual spots spotted dot dots dotted spot speckled specks spike spikes spiked spine spines sharp point pointed barb barbed sting stings stinger stinging stingers toxic toxin poison poisonous poisonos round rounded Various Invert |Sea Urchin (Toxopneustes pileolus)

Heart Urchin (Brissus latecarinatus)
Heart Urchin (Brissus latecarinatus) single one alone lonely isolated individual shell armor armour armoured armored protect protected protection hard sheild shield delicate fragile breakable Various Invert |Heart Urchin (Brissus latecarinatus)

Sea Urchins (Echinometra mathaei) in ledge under Favites hard coral.
Sea Urchins (Echinometra mathaei) in ledge under Favites hard coral. spike spikes spiked spine spines sharp point pointed barb barbed sting stings stinger stinging stingers toxic toxin poison poisonous poisonos corals seaurchin Various Invert |Sea Urchins (Echinometra mathaei)

Sea Urchin (Astropyga radiata)
Sea Urchin (Astropyga radiata) single one alone lonely isolated individual soft delicate fragile breakable sting stings stinger stinging stingers toxic toxin poison poisonous poisonos spike spikes spiked spine spines sharp point pointed colour color colourful colorful vibrant vibrent vibrint red yellow urchins seaurchin |Sea Urchin (Astropyga radiata)

Long-spinded Sea Urchin (Diadema paucispinum)
Long-spinded Sea Urchin (Echinoidea) Diadema paucispinum single one alone lonely isolated individual spike spikes spiked spine spines sharp point pointed colour color colourful colorful vibrant vibrent vibrint vertical |Long-spinded Sea Urchin (Diadema paucispinum)

Slate Pencil Sea Urchins (Heterocentrotus mammillatus) on coral reef slope.
Slate Pencil Sea Urchins (Heterocentrotus mammillatus) on coral reef slope. Echinoidea mass many group together same identical similar spike spikes spiked spine spines sharp point pointed barb barbed colour color colourful colorful vibrant vibrent vibrint red orange rust rusty urchin |Slate Pencil Sea Urchins (Heterocentrotus mammillatus)

Sea Urchin feet showing sucker pads and spines used to traverse over all forms of terrain.
Sea Urchin feet showing sucker pads and spines used to traverse over all forms of terrain. invertebrate invertebrates seaurchin seaegg sucker suckers spike spikes spiked spine spines sharp point pointed pattern patterns mobile mobility move movement moving |Sea Urchin feet showing sucker pads and spines used to traverse over all forms of terrain.

Female scuba diver with large sea urchin (Diadema setosum) reflected in her mask.
Female scuba diver with large sea urchin (Diadema setosum) reflected in her mask. single one alone lonely isolated individual reflect reflection reflections mirror mirrored mirrors shine shiney shining image spike spikes spiked spine spines sharp point pointed barb barbed seaurchin sea-urchin seaegg sea-egg vertical |Female scuba diver with large sea urchin (Diadema setosum)

Purple Sea Urchin (Strongylocentrotus purpuratus) Shell left after urchin has died.
Purple Sea Urchin (Strongylocentrotus purpuratus) Shell left after urchin has died. empty delicate fragile breakable skeleton case spots spotted dot dots dotted spot speckled specks seaurchin sea-urchin mauve purple majenta magenta |Purple Sea Urchin (Strongylocentrotus purpuratus)

Red Sea Urchins (Strongylocentrotus franciscanus)
Red Sea Urchins (Strongylocentrotus franciscanus) mass many group together same identical similar colour color colourful colorful vibrant vibrent vibrint red rust rusty orange spike spikes spiked spine spines sharp point pointed barb barbed urchin seaurchin sea-urchin seaurchins sea-urchins |Red Sea Urchins (Strongylocentrotus franciscanus)

Green Sea Urchins (Strongylocentrotus droebachiensis) on rocky reef with a pair of Giant Pacific Chitons (Cryptochiton stelleri)
Green Sea Urchins (Strongylocentrotus droebachiensis) on rocky reef with a pair of Giant Pacific Chitons (Cryptochiton stelleri) urchin seaurchin sea-urchin sea-urchins seaurchins spike spikes spiked spine spines sharp point pointed grip grab gripping grabbing hold holding grasp grasping grasped held mass many group together same identical similar |Green Sea Urchins (Strongylocentrotus droebachiensis)

Green Sea Urchins (Strongylocentrotus droebachiensis)
Green Sea Urchins (Strongylocentrotus droebachiensis) mass many group together same identical similar spike spikes spiked spine spines sharp point pointed grip grab gripping grabbing hold holding grasp grasping grasped held seaurchin sea-urchins sea-urchin line lines lined stripe stripes striped patterns pattern band bands banded |Green Sea Urchins (Strongylocentrotus droebachiensis)

Green Sea Urchin (Strongylocentrotus droebachiensis) with shells stuck to spines for defense and camouflage.
Green Sea Urchin (Strongylocentrotus droebachiensis) with shells stuck to spines for defense and camouflage. single one alone lonely isolated individual spike spikes spiked spine spines sharp point pointed barb barbed collect collecting collection sticking camouflage camoflage camouflaged camoflaged hidden hiding hide cryptic |Green Sea Urchin (Strongylocentrotus droebachiensis)

Sea Urchins (Diadema setosum)
Sea Urchins (Diadema setosum) mass many group together same identical similar spike spikes spiked spine spines sharp point pointed defence defend defencive defensive defense defending sheild shield guard shielding guarding guardian secure securing secured |Sea Urchins (Diadema setosum)

Sea Urchin (Diadema setosum)
Sea Urchin (Diadema setosum) single one alone lonely isolated individual spike spikes spiked spine spines sharp point pointed defence defend defencive defensive defense defending sheild shield guard shielding guarding guardian secure securing secured sand sandy sandflat seabed sea bed sea-bed seafloor sea-floor floor |Sea Urchin (Diadema setosum)

Diadema Sea Urchins (Diadema setosum)
Diadema Sea Urchins (Diadema setosum) urchin two pair couple together duo paired partner partners twin partnership sand sandy sandflat seabed sea bed sea-bed seafloor sea-floor floor spike spikes spiked spine spines sharp point pointed brittle fragile |Diadema Sea Urchins (Diadema setosum)

Flower Urchin (Toxopneustes pileolus) carrying reef rubble as camouflage from predators. Hihgly toxic spines.
Flower Urchin (Toxopneustes pileolus) carrying reef rubble as camouflage from predators. Hihgly toxic spines. toxic toxicity poison poisonous danger dangerous kill killer death poisoning killing spike spikes spiked spine spines sharp point pointed barb barbed camouflage camoflage camouflaged camoflaged hidden hiding hide cryptic invertebrate |Flower Urchin (Toxopneustes pileolus)

Flower Urchins (Toxopneustes pileolus) Leather Collector Urchins carrying reef rubble as camouflage from predators. Hihgly toxic spines.
Flower Urchins (Toxopneustes pileolus) Leather Collector Urchins carrying reef rubble as camouflage from predators. Hihgly toxic spines. Flower Urchin (Toxopneustes pileolus) Leather Collector Urchin carrying reef rubble as camouflage from predators. Hihgly toxic spines. single one alone lonely isolated individual camouflage camoflage camouflaged camoflaged hidden hiding hide cryptic rubble stones collection collecting toxic toxicity poison poisonous danger dangerous kill killer death poisoning killing spike spikes spiked spine spines sharp point pointed barb barbed sting stings stinger stinging stingers toxic toxin poison poisonous poisonos vertical sand sandy sandflat seabed sea bed sea-bed seafloor sea-floor floor crawl crawling mass many group together same identical similar |Flower Urchins (Toxopneustes pileolus)