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Flabellina affinis, underwater shot.
Gloom Nudibranch
The Red Sea is home to a diverse array of marine life, including the striking nudibranchs, which are soft-bodied, brightly colored sea slugs. Known for their incredible array of colors and intricate patterns, nudibranchs are a favorite subject for underwater photographers and divers exploring the region’s coral reefs.\n\nNudibranchs are gastropods, but unlike snails, they lack a protective shell. Instead, they display vibrant hues ranging from brilliant oranges, pinks, and purples to electric blues and yellows. This vivid coloration often serves as a warning to predators of their toxicity or unpalatability, though some species are harmless.\n\nIn the Red Sea, nudibranchs can be found on the reefs, where they feed on sponges, algae, or other small invertebrates. Species like the Spanish dancer, known for its large size and flowing red body, and the blue dragon (Glaucus atlanticus), with its shimmering blue hues, are particularly popular with divers. These fascinating creatures are typically found in shallow waters but can also be spotted in deeper areas of the reef.\n\nThe Red Sea's clear, warm waters and healthy coral ecosystems provide an ideal environment for these colorful creatures, making it a prime location for diving and snorkeling enthusiasts eager to discover the vibrant world of nudibranchs.
Yellow nudibranch eggs.  Close up Abstract.  Exploring and enjoying Beautiful Sea Life macro .  Underwater scene at clear mediterranean sea.  Scuba diver point of view. Greece Europe. Underwater photography. Photographed with Nikonos V, 35mm lens Macro 1:1 (real size 24x36mm) on Fujichrome Velvia 50
Macro underwater photography in Anilao in the Philippines
Gabriela's Tambja, Dorid Nudibranch
Bullock's Hypselodoris Hypselodoris bullockii occurs widespread in the tropical Indo-West Pacifix, max. length 7cm. \nThis Sea Slug or dorid nudibranch has been mistaken for at least eight other species. \n\nThis specimen was encountered in the Lembeh Strait, Indonesia\n1°27'38.166 N 125°13'34.284 E at 18m depth
Costasiella usagi, also known as the rabbit sea slug, is a species of sacoglossan sea slug, a shell-less marine opisthobranch gastropod mollusk in the family Costasiellidae. It is notable for its ability to incorporate chloroplasts from the algae it eats into its own tissues, allowing it to photosynthesize. This makes Costasiella usagi one of only a few animals known to be able to perform photosynthesis.\n\nCostasiella usagi is a small sea slug, typically measuring only a few millimeters in length. It has a translucent body with a white or cream-colored head and foot. The cerata, or \
Spanish dancer - sea slug in Red Sea near Marsa Alam by night, Egypt
Colorful sea cucumber-like corals.
BLACKSPOT NUDIBRANCH
Sea Life. Nudibranch is a member of Nudibranchia, a group of soft-bodied, marine gastropod mollusks which shed their shell after their larval stage.  Very shallow DOF. Macro (close-up)
Philippines PG Island - Close-up of underwater creatures
A couple of sea slugs - Trapania scurra (feeding on entoprocts). Underwater macro world of Tulamben, Bali, Indonesia.
The Nudibranch Tryon's Hypselodoris Hypselodoris tryoni (ex. Risbecia tryoni) occurs in the tropical Indo-Pacific Ocean from Tanzania to the Society Islands and Indonesia to Japan and the Philippines, max. length 10cm. This species, like all the members of the order Nudibranchia, are simultaneous hermaphrodites with this mating behavior: Both individuals darts their penis toward each other to induce one to act as a male and the other as the female. The victorious one to penetrate the body wall is the dominant male. \nThis specimen was encountered in the Lembeh Strait, Indonesia. \n1°27'39.69 N 125°14'33.342 E at 17m depth
under sea photo
Underwater photography of tropical reef  species in Papua New Guinea
Eye level with Anna's Nudibranch (Chromodoris annae). Photographed in Lembeh Strait, Indonesia.
White nudibranch eggs.  Close up Abstract.  Exploring and enjoying Beautiful Sea Life macro .  Underwater scene at clear mediterranean sea.  Scuba diver point of view. Greece Europe. Underwater photography
Illuminated Blue striped nudibranch on coral reef against a dark background
Gabriela's Tambja, Dorid Nudibranch
PG Island, Oriental Mindoro Province, Philippines - Close-up of marine life
The Sea Slug Halgerda batangas occurs in the tropical western Pacific, singly or in pairs on coral and rocky reefs amongst sand and rubble areas in 5 to 30 m depth, max. length 7 cm.  \nThe species feeds on hydroids, coral, sponges and anemones.  \nThis specimen was encountered in the Lembeh Strait, Indonesia\n1°27'15.486 N 125°13'25.578 E at 21m depth
A blue dorid nudibranch crawls over a reef in search for food.  Shot in the cold water of California's Channel Islands.
Celestial doris (Felimare orsinii) a nudibranch of the Mediterranean Sea
Nembrotha lineolata is a species of nudibranch, a sea slug, a marine gastropod mollusk in the family Polyceridae.
Sea life, close up, macro   Beautiful Purple - hot pink and  yellow   Nudibranch. Underwater beauty Scuba diver point of view. Underwater photo. Underwater scene Underwater photography. Photographed with Nikonos V, 35mm lens Macro 1:1 (real size 24x36mm) on Fujichrome Velvia 50
flabellina nudibranch underwater macrophography in Ambon indonesia
Gabriela's Tambja, Dorid Nudibranch
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