Flabellina nudibranch. Indonesia.
Giant marine hermit crab (Petrochirus diogenes ) on a wreck in the Bahamas.
Squat lobster on a sponge. These decapod crustaceans are not lobsters at all, but are more closely related to porcelain crabs, hermit crabs and then, more distantly, true crabs. Halmahera, Indonesia.
Emperor shrimp or Imperial shrimp (Periclimenes imperator) lives commensally on a number of hosts, including this sea slug: Hexabranchus. Philippines.
Collected unidentifed pelagic crustacean larva. Hawaii.
Unidentified crustacean larva.
Crab on dendronephthya soft coral. Indonesia.
Crab on soft coral
A salp (pelagic tunicate)(about 2") in the open ocean at night.
Head on shot of painted spiny lobster (P. versicolor). Fiji.
Painted spiny lobster
Anenome shrimp (Periclemenes sp.). Indonesia.
Yellow spotted guard crab (Trapezia flavopunctata) collected as postlarva, raised in my aquarium and photographed in the studio. Hawaii.
Yellow spotted guard crab
Two-spot lizardfish (Synodus binotatus) with four stages of parasitic isopods. Tonga.
Jewel anemone (Corynactis virids).
Mating nudibranchs (Nembrotha lineolata). Indonesia.
Squid larva feeding on a larval mantis shrimp. Solomon Islands.
Nudibranch (Nembrotha purpureolineata). Papua New Guinea.
Two soft corals attached to a giant giant clam (Tridachna gigas) in Palau.
Giant giant clam
Pelagic nudibranch (about 3/4") on a blackwater dive off Oahu, Hawaii
Nudibranch (Chromodoris michaeli). Philippines.
A bright orange bristle star on a soft coral. Tonga.
Pyrosome at night. Pyrosomes are actually free-floating colonial tunicates made up of hundreds to thousands of individuals, known as zooids. California.
Colorful shrimp doing yoga on a blackwater dive in Truk Lagoon.
A reef squid (Sepioteuthis sp.) in full irridescence. Cephalopods create this amazing camouflage using specialized color changing cells (chromatophores) and reflecting cells (iridocytes) in the skin. Indonesia.
Reef Squid at night
Hyperiid amphipod frequently parasitize hydromedusa and other gelatinous animals.
Hydromedusa with hyperiid amphipod
Octopus larva - 9.5 mm TL. Papua New Guinea.
Crinoid squat lobster (Allogalathea elegans). Indonesia.
Crinoid squat lobster
Lobster larva near settlement. Indonesia.
Soft coral crab (Hoplophrys oatesi). Indonesia.
Soft coral crab
Decorator crab. Indonesia.
Bird's eye view of painted spiny lobster (Panulirus vesicolor). Indonesia.
A cuttlefish (Sepia officinalis) at dusk.
Juvenile cuttlefish. Papua New Guinea.
Juvenile squid schooling at night. Florida.
A spotted spiny lobster (Panulirus guttatus). Bahamas.
Spotted spiny lobster
Nudibranch (Chromidoris sp.). Philippines.
Chambered nautilus (Nautilus pompilius). Papua New Guinea.
Reef squid (Cephalapod sp.). Palau.
Blue-ringed octopus (Hapalochlaena lunulata) juvenile on Halimeda algae. Papua New Guinea.
Juvenile blue-ringed octopus
A mantis shrimp (Odontodactylus scyllarus) peers out of its den. Indonesia.
Juvenile Hawaiian Saron shrimp (Saron marmoratus) collected as postlarva, raised in my aquarium and photographed in the studio. Hawaii.
Porcelain anemone crab (Neopetrolisthes maculosus) on a carpet anemone. Indonesia.
Porcelain anemone crab
A pair of harlequin shrimps (Hymenocera elegans) feeding on a starfish (Linkia sp.) in Indonesia.
Harlequin shrimp pair feeding
Nudibranch on a tunicate. Indonesia.
Common octopus (Octopus vulgaris) out and about on a colorful reef. Indonesia.
Odd looking donald duck shrimp (Leander plumosus) on a coral. Indonesia.
Donald duck shrimp
Flabellina nudibranch. Philippines.
Hermissenda opalescens nudibranch in the Channel Islands.
Hermissenda opalescens nudibranch
Two bubble coral shrimp (Vir philippinensis) in an anemone. Papua New Guinea.
Bubble coral shrimp
A Hawaiian bobtail squid (Euprymna scolopes) on a blackwater dive off Oahu.
Hawaiian bobtail squid
Crab close up. Indonesia.
A crinoid (Crinoid sp) looking stylish at night. Indonesia.
Barred wire coral shrimp (Pontonides sp.). Fiji.
Wire coral shrimp
A swimming bristle worm at night. Indonesia.
Saw blade shrimp (Tozeuma armatum) carrying eggs. Philippines.
Saw blade shrimp
California spiny lobster (Panulirus interruptus). California.
Chromodoris kuniei nudibranch. Indonesia.
Squid (Cephalapod sp.) at night. Palau.
Mantis shrimp larva - 65.0 mm TL. Papua New Guinea.
Mantis shrimp larva
Crab on a softcoral. Papua New Guinea.
Squid (Cephalapod sp.) under rain drops. Palau.
Squid on surface
Collected sea swallow (Glaucus atlanticus), a pelagic aeolid nudibranch. Hawaii.
Spider crab (Hyastenus bispinosus) on gorgonian. Fiji.
Harlequin shrimp (Hymenocera elegans). Philippines.
Collected pink jellyfish (Pelagia species). Hawaii.
Humpback shrimp (Saron sp.). Fiji.
I found a large aggregation of several hundred moon jellyfish in the lee of a small island in open ocean. Moon jellyfish aggregate under favorable (slack current) conditions to reproduce sexually. Solomon Islands.
Moon jellyfish aggregation
An emperor shrimp (Periclimenes imperator ) on a serpentine sea cucumber. Indonesia.
Two juvenile jacks swim above a barrel jellyfish (Rhizostoma pulmo) at night in Truk Lagoon. Barrel jellyfish are very common in Truk Lagoon during the late summer months.
Jellyfish and jacks
Atlantic triton's trumpet (Charonia variegata) feeding on a cushion sea star (Oreaster reticulatus). Sea stars are the triton’s primary prey item. A trumpet snail paralizes its prey with an injection of toxic saliva, and then bores through the body with its strong teeth. Adult trumpets are heavily collected for their beautiful shells, which has allowed sea star populations to proliferate in recent years. Bahamas.
Atlantic triton's trumpet feeding on starfish
A close-up of the of the red pencil urchin's (Heterocentrotus mammillatus) spines and skeleton (test). Hawaii.
Pencil urchin close-up.
Nudibranch (Nembrotha kubaryana). Papua New Guinea.
Emperor shrimp (Periclimenes imperator) on a sea cucumber. Indonesia.
Spiny brittle stars (Ophiothrix spiculata) became dominant on deeper California kelp beds after the 1998 El Nino and may cover nearly 100% of the bottom in some areas. They are filter feeders and require clean, oxygen-rich water, which makes them a good indicator species for a healthy ecosystem.
Spiny brittle stars
A reef squid on a bonfire dive in the Solomon Islands.
Head on shot of a shrimp's eyes. Philippines.
Over-under scene of jellyfish under mangroves in Palau.
Jellyfish below mangroves
Ctenophore gleaming in iridescence at night in the open ocean.
Swimming pelagic marine copepod (5.7 mm). Hawaii.
Copepod swmming under microscope
Emperor shrimp (Periclimenes imperator) lives commensally on a number of hosts, including this sea slug: Hexabranchus. Philippines.
Emperor shrimp on nudibranch
Head shot of a pelagic shrimp. Hawaii.
Pelagic shrimp close up
Collected pelagic copepod (Sapphirina sp.) - 4.5 mm TL. Hawaii.
Dozens of starfish cover a sand bed at Cocos Island. Costa Rica.
Head on shot of spiny tiger shrimp (Phyllognathia ceratophthalmus). Indonesia.
Spiny tiger shrimp
Blue boxer shrimp (Stenopus tenuirostris). Indonesia.
Blue boxer shrimp
Bigfin reef squid (Sepioteuthis lessoniana). Philippines.
Bigfin reef squid
Collected blue pelagic shrimp. Hawaii.
Blue shrimp close up
An octopus larva hitches a ride on a leaf on a blackwater dive in the Solomon Islands.
Pram bug (Phronima sedentaria) in the barrel of salp.
Phronima in salp
Shrimp hitching a ride on a colonial radiolarian at night in the open ocean off Oahu, Hawaii.
Shrimp on radiolarian
The rare sight of a slipper lobster puerulus on a blackwater dive off Oahu. The puerulus stage is the transitional form from pelagic larva (phyllosoma) to benthic juvenile in lobsters.
Slipper lobster puerulus
Nudibranch (Nembrotha sp.) on a tunicate. Indonesia.
Crown jellyfish (Cephea cephea) off Oahu, Hawaii. Crown jellyfish have a deep groove running around the bell, giving them the crown shape from which they take their name. Hawaii.
California mussel and purple sea urchins in the lower intertidal zone of Santa Cruz island, California. Purple urchins usually feed on plant matter, such as kelp, but, in tough times when algae is depleted, can also use their heavy-duty teeth to grind through barnacle and mussel shells. With their ability to withstand a wide range of ocean temperatures. purple sea urchins may well be among the ocean’s ultimate survivors. Areas dominated by purple urchins are increasing throughout the Channel Islands.
Mussels and sea urchins
Ctenophore (about 2") feeding on a bristle worm on a blackwater dive off Oahu.
Nudibranch (Chromodoris willani). Indonesia.
Two fairy crabs (Lauriea siagiani). Papua New Guinea.
Anemone hermit crab (Dardanus pedunculatus). Indonesia.
Anemone hermit crab
A flamboyant cuttlefish (Metasepia pfefferi) lifts off from the muck in search of food. Indonesia.
Flabellina iodinea nudibranch. California.
Fairy crab (Lauriea siagiani). Papua New Guinea.
Crown jellyfish (Cephea cephea) on a night dive. Crown jellyfish have a deep groove running around the bell, giving them the crown shape from which they take their name. Hawaii.
Bobtail squid postures to defend itself against the bright beam of my focus light.
Bobtail squid in defense posture
Reef squid in defense posture on a blackwater dive. Solomon Islands.
Starfish. Papua New Guinea.
Reef Squid (Sepioteuthis sp.). Like all cephalopods, squid have a distinct head, bilateral symmetry, a mantle, and eight arms. There are around 300 species of squid. Indonesia.
Nudibranch (Flabellina sp.). Indonesia.
Larval squid releasing ink. Papua New Guinea.
Green-eye dancing shrimp (Cinetorhynchus sp.). Fiji.
Crinoid shrimp (Hippolyte catagrapha). Philippines.
A banded coral shrimp (Stenopus hispidus) in the Bahamas.
Banded coral shrimp
Yellow crinoid shrimp. Indonesia.
Spotted spiny lobster (Panulirus guttatus). Bahamas.
Spotted spiny lobster
Crinoid shrimp (Hippolyte catagrapha). Philippines.
Bristle worm epitoke in the open ocean at night. An epitoke is posterior sexual part of a bristle worm (and other polychaetes) that develops from the anterior asexual part. Epitokes swim to ocean surface and release sperm and eggs during their breeding season.
Bristle worm epitoke
Coral pattern. Palau.
Octopus larva - 9.5 mm TL. Papua New Guinea.
Portuguese man-of-war reeling in a damselfish larva at night in the open ocean.
Portuguese man-of-war fishing
Saron shrimp (Saron marmoratus). Saron shrimps are quite variable in color and pattern. They may have greenish, brown, or even red, purple or blue markings. Ambon, Indonesia.
Peacock mantis shrimp (Hemisquilla ensiger). Papua New Guinea.
A sea elephant (Pterotrachea coronata) at night in the open ocean.
Juvenile saron shrimp near the surface at night in Truk Lagoon.
Juvenile saron shrimp
Flabellina iodinea - a common nudibranch in the Channel Islands.
Blue starfish and soft coral reef scene. Indonesia.
Brain coral (Leptoria phrygia) pattern. Bahamas.
Squid larva - 12.6 mm TL. Papua New Guinea.
Juvenile octopus reflects off the surface (Octopus sp.) in Papua New Guinea.
Juvenile octopus on surface
Squat lobster in a crinoid. Indonesia.
A sea cucumber (Holothuroidea sp.) extends off the reef and releases gametes in the current.
Spawning sea cucumber
Hyperiid amphipods riding a jellyfish (hydromedusa) at night in the open ocean.
Jellyfish with hyperiid amphipod
Two giant basket stars (Astrophyton muricatum) at night. Indonesia.
A spotted cleaner shrimp (Periclimenes yucatanicus) in a pink-tipped anemone. Bahamas
A bobtail squid near the surface at night in Truk Lagoon.
Nudibranch (Chromodoris lochi). Philippines.
Crab megalopa collected in an egg tow. Hawaii.
Head on shot of peacock mantis shrimp (Hemisquilla ensigera californiensis) carrying a large clutch of eggs. Philippines.
Mantis Shrimp with eggs
Anenome shrimp (Periclemens sp.). Indonesia.
Nudibranchs (Chromodoris willani) at night. Philippines.
Bristle star and crabs on a soft coral. Papua New Guinea.
Brittle star and crab
Saron shrimp (Saron sp.) in a crevice. Papua New Guinea.
Truk's wrecks are covered in orange sun corals that feed at night.
Orange sun coral
Emperor shrimp (Periclimenes imperator). Philippines.
Harlequin shrimp (Hymenocera elegans) feeding on a sea star (Linkia sp.). Indonesia.
Harlequin shrimp feeding
Juvenile banded mantis shrimp (Lysiosquilla maculata) reflecting off the surface on a blackwater dive in Palau.