Mike Bryant's Dive Trips, Photo Galleries

Chromodoris

Phyllodesmium, note

brown algae.

Chromodoris

Risbecia

Risbecia

Chromodoris

Phyllidia

Phyllidia, pair

Nembrotha

Chromodoris

Cadlinella

Chromodoris

Halgerda

Glossodiris

Glossodiris

Glossodiris

Hypselodoris

Chromodoris

Nembrotha mating

Notodoris

Nembrotha

Nembrotha

Hypselodoris

Halgerda, pair

Flababellinopsis

Chromodoris

Ceratosoma

Glossodiris

Phyllidia

Not a nudibranch. Cowrie

mimicking Phyllidia.

Indonesia 4. Nudibranchs.

        Home Click HERE to enter galleries. Fiji. May 2011 Beqa Lagoon Shark Dive Bahamas Sharks Red Sea, Egypt 2006 Indonesia 1. The Good. Indonesia 2. The Bad. Indonesia 3. The Ugly. Indonesia 4. Nudibranchs. Indonesia 5. Critters. Great White Shark St Vincent, 2009 Red Sea, Egypt 2009 Galapagos Underwater Galapagos Land Machias Seal Island, Maine. June 2010 St Kitts and Saba, August 2010 Philippines, Puerto Galera January 2011 Fish. Philippines, Puerto Galera January 2011 Creatures Fiji, May 2011. Beqa Reefs Bali, Indonesia 2012. Fish. Bali, Indonesia 2012. Behaviors and critters. Bali, Indonesia 2012. Nudibranchs. Blue Heron Bridge, Riviera Beach, Florida. North Sulawesi 2013. Pipefish and Seahorses North Sulawesi 2013. Fish North Sulawesi 2013. Mostly Nudibranchs North Sulawesi 2013. Crabs and Critters North Sulawesi 2013. Cuttlefish and Octopus Blue Heron Bridge, May 2013 Komodo, Indonesia. August 2014, daytime Komodo, Indonesia. August 2014, night dives Philippines, Dumaguete 2015 Fish Philippines Dumaguete 2015, Creatures and Critters Dominica, 2015 Raja Ampat, January 2016 Cayman Islands, October 2016 North Sulawesi 2017. Fish North Sulawesi 2017, Creatures Anilao, Philippines 2017. Fish Anilao, Philippines 2017. Eels, Pipefish Anilao, Philippines 2017. Crabs, shrimp, octopus. Anilao, Philippines 2017. Nudibranchs.

The name Nudibranch comes from a Latin/Greek compound word that means "naked

gill". They are members of the sea slug family and you can see  the feathery, exposed

gills. These are some of the most brightly colored creatures in the sea, but the color is

there as a warning. Most nudibranchs feed on prey that's toxic to other animals and

store the poisons in their bodies as defense. The bright colors advertise their

unpalatability.  Most of these are 1-2 inches in size, the two largest are the bright

yellow Notodoris and the giant (by nudibranch standards) Phyllodesmium which are

both five inches or more. The Phyllodesmium uses sunlight to grow algae (a micro

plant) in its body as an additional food source, they show as brownish spots. Hard

corals and giant clams also supplement their food sources with an internal algae

garden.

I have only shown the main family name for these. There are few "common" names

for the thousands of known nudibranchs and dense, impenetrable Latin nomenclature

is for the taxonomists, not me.

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