Nudibranchs, Sea Hares / Seaslugs Opisthobranchia

Margined Glaucilla (Glaucilla marginata) Open ocean or pelagic nudibranch feeding on Portuguese Man-of-war or Blue Bottle Jellyfish (Physalia physalia)
Margined Glaucilla (Glaucilla marginata) Open ocean or pelagic nudibranch feeding on Portuguese Man-Of-War or Blue Bottle Jellyfish (Physalia physalia) strange unusual weird bizarre bizzare bizzarre ugly freak freaky feed eat eating consume consuming bite biting Molluscs eat eating eater feed feeding feeder consume consuming devour devouring |Margined Glaucilla (Glaucilla marginata)

Kubaryana's Nudibranch (Nembrotha kubaryana) or Dusky Nudibranch (Nembrotha nigerrima)
Kubaryana's Nudibranch (Nembrotha kubaryana) or dusky Nudibranch (Nembrotha nigerrima) Nudibranchia black single one alone lonely isolated individual green red orange line lines lined stripe stripes striped patterns pattern band bands banded spots spotted dot dots dotted spot speckled specks toxic toxicity poison poisonous danger dangerous kill killer death poisoning killing alert alerted alarm alarmed curious curiousity curios curiosity look looking inspect inspecting gaze gazing inquisitive inquiring enquiring interested questioning nosy prying search searching |Kubaryana's Nudibranch (Nembrotha kubaryana)

Elegant Nudibranch (Phyllidia elegans)
Elegant Nudibranch (Phyllidia elegans) frills frilly tassles camouflage pair couple two twin follow slide crawl mating mate reproduction sex reproduce lemon yellow striped stripes bump bumpy knob knobs knobby knobbly Molluscs |Elegant Nudibranch (Phyllidia elegans)

Lion Nudibranch (Melibe leonina) sifting plankton with extended oral hood.
Lion Nudibranch (Melibe leonina) sifting plankton with extended oral hood. filtering catching strange bizarre unusual sieve sifting Molluscs |Lion Nudibranch (Melibe leonina)

Ocellated Nudibranch (Phyllidia ocellata)
Ocellated Nudibranch (Phyllidia ocellata) camouflage camoflage camouflaged camoflaged hidden hiding hide cryptic colour color colourful colorful vibrant vibrent vibrint strange unusual weird bizarre bizzare bizzarre ugly freak freaky slug doris mollusc snail Molluscs |Ocellated Nudibranch (Phyllidia ocellata)

Hill's Side-gilled Sea Slug (Pleurobranchus hilli) moving over sandy sea bed.
Hill's Side-gilled Sea Slug (Pleurobranchus hilli) moving over sandy sea bed. single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint red rust maroon mollusc molluscs Molluscs |Hill's Side-gilled Sea Slug (Pleurobranchus hilli)

Spanish Dancer (Hexabranchus sanguineus) Egg ribbon attached to coral reef.
Spanish Dancer (Hexabranchus sanguineus) Egg ribbon attached to coral reef. colour color colourful red magenta pink frills frilly tassles reproduction reproduce sex folded folds crumple gathered gather Molluscs |Spanish Dancer (Hexabranchus sanguineus)

Gardiner's Nudibranchs (Notodoris gardineri) mating.
Gardiner's Nudibranchs (Notodoris gardineri) mating. colour color yellow reproduction sex Molluscs |Gardiner's Nudibranchs (Notodoris gardineri)

Orange Peel Nudibranch (Tochuina tetraquetra)
Orange Peel Nudibranch (Tochuina tetraquetra) colour color colourful yellow golden gold orange frills frilly crawl crawling slide curled curl curly profile spots spot spotted white vertical Molluscs |Orange Peel Nudibranch (Tochuina tetraquetra)

Fire Nudibranch (Cuthona sibogae) feeding on Hydroid (Sertularella sp.).
Fire Nudibranch (Cuthona sibogae) feeding on Hydroid (Sertularella sp.). Tergipedidae seaslug seaslugs sea-slug sea-slugs Nudibranchia Aeolidina single one alone lonely isolated individual small tiny minute minuet miniscule diminutive macro micro little minor minature miniature petite puny colour color colourful colorful vibrant vibrent vibrint pink mauve purple yellow gold golden lemon flavus, flava, flavum small tiny minute minuet miniscule diminutive macro micro little minor minature miniature petite puny soft delicate fragile breakable pretty vertical |Fire Nudibranch (Cuthona sibogae)

Bohol Discodoris Nudibranch (Discodoris boholiensis)
Bohol Discodoris Nudibranch (Discodoris boholiensis) Discodorididae seaslug seaslugs sea-slug sea-slugs nudibranch Gastropoda Nudibranchia flat flatten flatter flattened flatened compressed splayed compressed compress spread sand sandy sandflat seabed sea bed sea-bed seafloor sea-floor floor strange unusual weird bizarre bizzare bizzarre ugly freak freaky |Bohol Discodoris Nudibranch (Discodoris boholiensis)

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)

Lugubris Nudibranch (Phestilla lugubris) laying egg mass.
Lugubris Nudibranch (Phestilla lugubris) laying egg mass. sex reproduction nest Molluscs |Lugubris Nudibranch (Phestilla lugubris)

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)

Side-gilled Sea Slug (Pleurobranchus grandis)
Side-gilled Sea Slug (Pleurobranchus grandis) red orange pink pattern mollusc molluscs colour color colourful colorful vibrant vibrent vibrint camouflage camoflage camouflaged camoflaged hidden hiding hide cryptic Molluscs |Side-gilled Sea Slug (Pleurobranchus grandis)

Dorid Nudibranch (Dorididae sp.)
Dorid Nudibranch (Dorididae sp.) Molluscs |Dorid Nudibranch (Dorididae sp.)

Opalescent Nudibranch (Hermissenda crassicornis)
Opalescent Nudibranch (Hermissenda crassicornis) nebulous gauze transparent frills frilly Molluscs |Opalescent Nudibranch (Hermissenda crassicornis)

Sea Hare (Aplysia sp.)
Sea Hare (Aplysia sp.) sliding slug snail slimy Molluscs |Sea Hare (Aplysia sp.)

Vercon's Nudibranch (Tambja verconis) laying egg cluster.
Vercon's Nudibranch (Tambja verconis) laying egg cluster. sex reproduction mate mating maternal copulate copulation single one alone lonely isolated individual toxic toxicity poison poisonous danger dangerous kill killer death poisoning killing colour color colourful colorful vibrant vibrent vibrint Molluscs |Vercon's Nudibranch (Tambja verconis)

Red-gilled Nudibranch (Nembrotha rutilans) Detail of head.
Red-gilled Nudibranch (Nembrotha rutilans) Detail of head. Nudibranchia single one alone lonely isolated individual colour color colourful colorful vibrant vibrent vibrint red blue cyan alert alarm alarmed look looking lookout look-out out surprise surprised ear ears perk perky perked slug seaslug sea-slug radar antennae frill frilled |Red-gilled Nudibranch (Nembrotha rutilans)