Urchins / Sand Dollars

Sea Urchin (Evechinus chloroticus) Commercial species with edible roe.
Sea Urchin (Evechinus chloroticus) Commercial species with edible roe. spines spikes spikey spiny sharp pointed injury sea star seastar Various Invert |Sea Urchin (Evechinus chloroticus)

Red Sea Urchin (Strongylocentrotus franciscanus)
Red Sea Urchin (Strongylocentrotus franciscanus) spines spikes spikey spiny sharp pointed injury sea star seastar Various Invert |Red Sea Urchin (Strongylocentrotus franciscanus)

Fire Urchin (Asthenosoma varium) Venomous spines inflict severe pain.
Fire Urchin (Asthenosoma varium) Venomous spines inflict severe pain. spines spiny sharp prickley poisonous toxic defence defend protection pointed sea star seastar Various Invert |Fire Urchin (Asthenosoma varium)

Fire Urchin (Asthenosoma ijimai) Detail of spines. Able to inflict very painful sting.
Fire Urchin (Asthenosoma ijimai) Detail of spines. Able to inflict very painful sting.dangerous poisonous sharp puncture red pattern sea star seastar Various Invert |Fire Urchin (Asthenosoma ijimai)

Fire Urchin (Asthenosoma ijimai) Detail of spines. Able to inflict very painful sting.
Fire Urchin (Asthenosoma ijimai) Detail of spines. Able to inflict very painful sting. starfish sharp pointed pattern poisonous toxic painful sea star seastar Various Invert |Fire Urchin (Asthenosoma ijimai)

Purple Sea Urchins (Strongylocentrotus prupuratus)
Purple Sea Urchins (Strongylocentrotus prupuratus) spikes spines spikey spiky spiny spiney many mass mauve sharp pointed painful Various Invert |Purple Sea Urchins (Strongylocentrotus prupuratus)

Purple Sea Urchins (Strongylocentrotus prupuratus) surrounding kelp holdfast.
Purple Sea Urchins (Strongylocentrotus prupuratus) surrounding kelp holdfast. many mass together spines spikey sharp pointed mass many group together same identical similar overwhelm overwhelmed overwhelming overwelm overwelmed overwelming over whelm whelmed welming whelming welmed welm purple mauve seaweed seabed sea bed floor Various Invert |Purple Sea Urchins (Strongylocentrotus prupuratus)

Purple Sea Urchins (Strongylocentrotus prupuratus)
Purple Sea Urchins (Strongylocentrotus prupuratus) spikes spines spikey spiky spiny spiney many mass mauve sharp pointed painful vertical Various Invert |Purple Sea Urchins (Strongylocentrotus prupuratus)

Pink Kelp Urchin (Holopneustes pycnotilus)
Pink Kelp Urchin (Holopneustes pycnotilus) prickles pink sharp poisonous Various Invert |Pink Kelp Urchin (Holopneustes pycnotilus)

Pencil Sea Urchin (Heterocentrotus mammillatus) and diver.
Pencil Sea Urchin (Heterocentrotus mammillatus) and diver. tourism tourist diving vacation holiday diving adventure explore exploration exploring looking examining two pair couple sharing together red bikini female Various Invert |Pencil Sea Urchin (Heterocentrotus mammillatus)

Sea Urchin (Diadema paucispinum) and Saddle Wrasse (Thalassoma duperrey) with diver.
Sea Urchin (Diadema paucispinum) and Saddle Wrasse (Thalassoma duperrey) with diver. tourism tourist diving vacation holiday diving adventure explore exploration exploring vertical looking examining Various Invert |Sea Urchin (Diadema paucispinum)

Commensal Shrimp (Stegopontonia commensalis) living in Blue Spotted Sea Urchin (Astropyga radiata)
Commensal Shrimp (Stegopontonia commensalis) living in Blue Spotted Sea Urchin (Astropyga radiata) spines spikey sharp dangerous painful vertical seaurchin Crustaceans |Commensal Shrimp (Stegopontonia commensalis)

Flower Sea Urchin (Toxoneustes roseus)
Flower Sea Urchin (Toxoneustes roseus) spikes spiny seaurchin Various Invert |Flower Sea Urchin (Toxoneustes roseus)

Gratilla Sea Urchin (Tripneustes gratilla)
Gratilla Sea Urchin (Tripneustes gratilla) sticking stuck adhere collecting collected spines spikes sharp Various Invert |Gratilla Sea Urchin (Tripneustes gratilla)

Pencil Sea Urchin (Goniocidaris tubaria)
Pencil Sea Urchin (Goniocidaris tubaria) spines spikes blunt pointed Various Invert single one alone lonely isolated individual shell armor armour armoured armored protect protected protection hard sheild shield spike spikes spiked spine spines sharp point pointed seaurchin invertebrate invertebrates invertibrate invertibrates sea-urchin sand sandy sandflat seabed sea bed sea-bed seafloor sea-floor floor |Pencil Sea Urchin (Goniocidaris tubaria)

Sand Dollars (Dendraster excentricus)
Sand Dollars (Dendraster excentricus) mass many group together crowd crowded discs disks jumbled Various Invert |Sand Dollars (Dendraster excentricus)

Sea Urchin (Goniocidaris tubaria)
Sea Urchin (Goniocidaris tubaria) spines spikes blunt sharp spine spike seaurchin seaegg Various Invert |Sea Urchin (Goniocidaris tubaria)

Pale Sea Urchin (amblypneustes pallidus)
Pale Sea Urchin (amblypneustes pallidus) spike spikey spikes spiky spine prick prickle prickles prickel prickles sharp point pointed pain painful Various Invert |Pale Sea Urchin (amblypneustes pallidus)

Sea Urchins (Echinoidea family) releasing sperm and eggs into water during spawning session.
Sea Urchins (Echinoidea family) releasing sperm and eggs into water during spawning session. two pair couple together duo paired partner partners twin partnership sex reproduction mate mating maternal copulate copulation spine spines spike spikes Various Invert |Sea Urchins (Echinoidea family)

Sea Urchin (Echinoidea family) releasing sperm and eggs into water during spawning session.
Sea Urchin (Echinoidea family) releasing sperm and eggs into water during spawning session. sex reproduction mate mating maternal copulate copulation single one alone lonely isolated individual spike spikes spine spines sharp point pointed Various Invert |Sea Urchin (Echinoidea family)