Nudibranchs, Sea Hares / Seaslugs Opisthobranchia

Short-tailed Nudibranch (Ceratosoma brevicaudatum) foraging over sea bed.
Short-tailed Nudibranch (Ceratosoma brevicaudatum) foraging over sea bed. single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint slug dorid mollusc molluscs invertebrate invertebrates pink orange white red soft delicate fragile slow slowly slower slowing sluggish crawl crawling inching Molluscs |Short-tailed Nudibranch (Ceratosoma brevicaudatum)

Slender Roboastra Nudibranch (Roboastra gracilis)
Slender Roboastra Nudibranch (Roboastra gracilis) single one alone lonely isolated individual spots spotted dot dots dotted spot speckled specks small tiny minute minuet miniscule diminutive macro micro little minor minature miniature petite puny invertebrate invertebrates slug sea slug seaslug sea-slug doris chromodoris gills |Slender Roboastra Nudibranch (Roboastra gracilis)

Tryon's Nudibranch (Rispecia tryoni) foraging over sandy reef flat showing rhinophores and mouth flaps.
Tryon's Nudibranch (Rispecia tryoni) foraging over sandy reef flat showing rhinophores and mouth flaps. Nudibranchia single one alone lonely isolated individual spots spotted dot dots dotted spot speckled specks small tiny minute minuet miniscule diminutive macro micro little minor minature miniature petite puny invertebrate invertebrates slug sea slug seaslug sea-slug doris chromodoris |Tryon's Nudibranch (Rispecia tryoni)

Mournful Nudibranch (Aphelodoris luctosa) foraging over coral reef.
Mournful Nudibranch (Aphelodoris luctosa) foraging over coral reef. Nudibranchia single one alone lonely isolated individual content obese fat chubby overweight portly fatty blubber blubbery grip grab gripping grabbing hold holding grasp grasping grasped held descent desend descend decend decending descending dive diving drop dropping |Mournful Nudibranch (Aphelodoris luctosa)

Magnificent Nudibranch (Ceratosoma magnificum) and Robust Sea Cucumber (Colochirus robustus) on an ascidian.
Magnificent Nudibranch (Ceratosoma magnificum) and Robust Sea Cucumber (Colochirus robustus) on an ascidian. Nudibranchia holothurian holothurians beche de mer beche-de-mer bech-de-mer bech seacucumber cucumber cucumbers slug sluggish filter vacuum vacumming invertebrate invertebrates two pair couple together duo paired partner partners twin partnership colour color colourful colorful vibrant vibrent vibrint yellow red purple share sharing shared vertical descent desend descend decend decending descending dive diving drop dropping |Magnificent Nudibranch (Ceratosoma magnificum)

Red-gilled Nudibranch (Nembrotha rutilans) foraging among ascidians and sponges.
Red-gilled Nudibranch (Nembrotha rutilans) foraging among ascidians and sponges.Nudibranchia single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint mollusc molluscs slug seaslug sea-slug camouflage camoflage camouflaged camoflaged hidden hiding hide cryptic nudibranchs vertical |Red-gilled Nudibranch (Nembrotha rutilans)

Purple-lined Nudibranch (Nembrotha purpureolineolata) foraging over coral reef showing rhinophores and mouth flaps.
Purple-lined Nudibranch (Nembrotha purpureolineolata) foraging over coral reef showing rhinophores and mouth flaps. Nudibranchia single one alone lonely isolated individual line lines lined stripe stripes striped patterns pattern band bands banded small tiny minute minuet miniscule diminutive macro micro little minor minature miniature petite puny strange unusual weird bizarre bizzare bizzarre ugly freak freaky curious curiousity curios curiosity look looking inspect inspecting gaze gazing inquisitive inquiring enquiring interested questioning nosy prying cute friend friendly cuddly cuddle play playful happy smile smiling horn horns vertical |Purple-lined Nudibranch (Nembrotha purpureolineolata)

Red-gilled Nudibranch (Nembrotha rutilans) foraging among ascidians and sponges.
Red-gilled Nudibranch (Nembrotha rutilans) foraging among ascidians and sponges.Nudibranchia single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint mollusc molluscs slug seaslug sea-slug camouflage camoflage camouflaged camoflaged hidden hiding hide cryptic nudibranchs vertical |Red-gilled Nudibranch (Nembrotha rutilans)

Purple-lined Nudibranch (Nembrotha purpureolineolata) foraging over coral reef showing rhinophores and mouth flaps.
Purple-lined Nudibranch (Nembrotha purpureolineolata) foraging over coral reef showing rhinophores and mouth flaps. Nudibranchia single one alone lonely isolated individual line lines lined stripe stripes striped patterns pattern band bands banded small tiny minute minuet miniscule diminutive macro micro little minor minature miniature petite puny strange unusual weird bizarre bizzare bizzarre ugly freak freaky curious curiousity curios curiosity look looking inspect inspecting gaze gazing inquisitive inquiring enquiring interested questioning nosy prying cute friend friendly cuddly cuddle play playful happy smile smiling horn horns vertical colour color colourful colorful vibrant vibrent vibrint orange red purple purplelined lined horn horns flame flames |Purple-lined Nudibranch (Nembrotha purpureolineolata)

Red-gilled Nudibranch (Nembrotha rutilans) foraging among ascidians and sponges.
Red-gilled Nudibranch (Nembrotha rutilans) foraging among ascidians and sponges.Nudibranchia single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint mollusc molluscs slug seaslug sea-slug camouflage camoflage camouflaged camoflaged hidden hiding hide cryptic nudibranchs vertical |Red-gilled Nudibranch (Nembrotha rutilans)

Yellow Crimora Nudibranch (Crimora lutea) foraging over sponge growth on coral reef.
Yellow Crimora Nudibranch (Crimora lutea) foraging over sponge growth on coral reef. Nudibranchia single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint cyan blue yellow pink sessile vertical tropical |Yellow Crimora Nudibranch (Crimora lutea)

Reticulated Nudibranch (Chromodoris reticulata) Able to dispose of its penis after sex and grow a new one within 24 hours, at least three times
Reticulated Nudibranch (Chromodoris reticulata) Able to dispose of its penis after sex and grow a new one within 24 hours, at least three times Nudibranchia nudibranch slug seaslug sea-slug single one alone lonely isolated individual spots spotted dot dots dotted spot speckled specks colour color colourful colorful vibrant vibrent vibrint red pink orange vertical |Reticulated Nudibranch (Chromodoris reticulata)

Yellow Crimora Nudibranch (Crimora lutea) foraging over sponge growth on coral reef showing mouth folds, front rhinophores and rear external gill cluster. Nudibranchia single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint cyan blue yellow pink sessile vertical tropical
Yellow Crimora Nudibranch (Crimora lutea) foraging over sponge growth on coral reef showing mouth folds, front rhinophores and rear external gill cluster. Nudibranchia single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint cyan blue yellow pink sessile tropical |Yellow Crimora Nudibranch (Crimora lutea)

Lined Nudibranch (Nembrotha lineolata) feeding on tunicate.
Lined Nudibranch (Nembrotha lineolata) feeding on tunicate. Nudibranchia phanerobranch dorid dorids single one alone lonely isolated individual line lines lined stripe stripes striped patterns pattern band bands banded soft delicate fragile breakable eat eating eater feed feeding feeder consume consuming devour devouring |Lined Nudibranch (Nembrotha lineolata)

Sea Hares (Aplysia parvula) foraging on coral reef.
Sea Hares (Aplysia parvula) foraging on coral reef. Nudibranchia two pair couple together duo paired partner partners twin partnership mollusc molluscs soft delicate fragile breakable |Sea Hares (Aplysia parvula)

Elizabeth's Nudibranch (Chromodoris elizabethina) laying eggs.
Elizabeth's Nudibranch (Chromodoris elizabethina) laying eggs. Nudibranchia mollusc molluscs sex reproduction maternal spiral egg mass lay laid single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint blue cyan yellow soft delicate fragile breakable |Elizabeth's Nudibranch (Chromodoris elizabethina)

Lined Nudibranchs (Nembrotha lineolata) mating.
Lined Nudibranchs (Nembrotha lineolata) mating. seaslug seaslugs sea-slug sea-slugs Nudibranchia two pair couple together duo paired partner partners twin partnership sex reproduction mate mating maternal copulate copulation soft delicate fragile breakable |Lined Nudibranchs (Nembrotha lineolata)

Nudibranch (Chromodoris sp.) foraging over coral reef showing mouth detail.
Nudibranch (Chromodoris sp.) foraging over coral reef showing mouth detail. Nudibranchia single one alone lonely isolated individual mollusc molluscs slug seaslug sea-slug sea nudibranchs ascent ascend ascending asent assent assending rise rising arise up |Nudibranch (Chromodoris sp.)

Long Branched Nudibranch (Phyllodesmium longicirra) Carries zooxanthellae single cell alage plants in it's long body extensions from which it gathers nutrients.
Long Branched Nudibranch (Phyllodesmium longicirra) Carries zooxanthellae single cell alage plants in it's long body extensions from which it gathers nutrients. glaucidae aeolid Nudibranchia single one alone lonely isolated individual strange unusual weird bizarre bizzare bizzarre ugly freak freaky mollusc molluscs sea slug sea-slug single one alone lonely isolated individual commensal |Long Branched Nudibranch (Phyllodesmium longicirra)

Elizabeth's Nudibranchs (Chromodoris elizabethina) in pre-mating behaviour.
Elizabeth's Nudibranchs (Chromodoris elizabethina) in pre-mating behaviour. chromodorididae Nudibranchia two pair couple together duo paired partner partners twin partnership sex reproduction mate mating maternal copulate copulation line lines lined stripe stripes striped patterns pattern band bands banded colour color colourful colorful vibrant vibrent vibrint blue cyan ornage love loving care caring affection affectionate |Elizabeth's Nudibranchs (Chromodoris elizabethina)