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Red Sea sea slug

Red Sea sea slug
Photo Information
Copyright: Alain Thibodeau (Athila) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 335 W: 239 N: 493] (1982)
Genre: Animals
Medium: Color
Date Taken: 1985
Categories: Molluscs
Camera: Nikkormat EL & Ikelite housing, Micro-Nikkor 55mm f/3.5, Ektachrome
Exposure: 1/125 seconds
Details: (Fill) Flash: Yes
Photo Version: Original Version
Theme(s): Exotic marine life, Fishes from around the world, The Red Sea, Underwater World #2, under and above the seas and lakes [view contributor(s)]
Date Submitted: 2005-11-09 15:05
Viewed: 8665
Points: 28
[Note Guidelines] Photographer's Note
I took that picture while I was in Hurgada in Egypt.


name for a marine gastropod mollusk that lacks a shell as an adult and is usually brightly colored. Sea slugs, or nudibranchs, are distributed throughout the world, with the greatest numbers and the largest kinds found in tropical waters. They creep along the bottom or cling to submerged vegetation, usually in water just below the low tide line. Members of a few species swim on the surface in open ocean. Most sea slugs are under 1 in. (2.5 cm) long (THE ONE IN MY PICTURE WAS ABOUT 2 INCHES OR 5 CM LONG), although the largest, found in the Great Barrier Reef of Australia, reaches 12 in. (30 cm). Regarded by many people as the most beautiful of marine animals, sea slugs display a great array of solid colors and patterns. Many have feathery structures (ceratia) on the back, often in a contrasting color. Most sea slugs have two pairs of tentacles on the head, used for tactile and chemosensory reception, with a small eye at the base of each tentacle. Sea slugs graze on small sessile animals such as coelenterates, sponges, and bryozoans. Certain sea slugs that feed on corals and sea anemones ingest the stinging cells of their prey without discharging them; these then pass from the slug's digestive tract to the ceratia, where they are used by the slug for its own defense. Sea slugs are classified in the phylum Mollusca , class Gastropoda, subclass Opisthobranchia, order Nudibranchiata.

Source: http://www.encyclopedia.com/html/s1/seaslug.asp

Technical data:

Camera : Nikkormat EL
Accessory-1 : Ikelite camera housing with flat port
Lens : 55mm f :3.5 Micro-Nikkor
F/stop : Not recorded
Shutter speed : Not recorded (SYNC SPEED)
Magnification on film: about life size
Filter: None
Flash : Vivitar 285
Accessory-2 : Ikelite flash housing
Tripod : None
Film : Ektachrome 64
Flatbed Scanner: Epson 4180

cecilia, glazzaro, scottevers7, Signal-Womb, dew77, extramundi, touristdidi has marked this note useful
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Critiques [Translate]

Excellent clarity and colour, great exposure, well caught...

Your subject is very psychedelic.I've always liked nudibranchs.
The kodak frame is interesting with the white spots,although I usually prefer no frame and no writing on a nature pic myself.Very good note too.

  • Great 
  • manyee Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3089 W: 230 N: 6774] (23770)
  • [2005-11-09 23:56]

Sea slugs are such amazing creatures. This one has beautiful colors. Sharp details and good POV. Well done, Alain, and TFS. : )

Clear, crisp colors, nice detail, well presented.


Hi Alain,
This is a beautiful picture of sea slug.
The colours and exposure are great. Very good details and composition. I like the POV too. Nice to see a film strip for a frame, it reminds me of the old days.
Excellent work.

Hi Alain,
This shot has it all! The colors are very vivid, and detail is excellent. Composition and framing is perfect. I love the frame. Great job!

Fantastic capture Alain, stunning colours and fine composition. Now about the frame ... well, Great work.

Nice shot Alain,
Sorry it's a rushed visit tonight.
Your post is well worth a big green smile.
Thanks for posting

Very nice shot Alain! I think sea slugs are cool they come in many different colors and patterns. You did an excellent job on presenting this beautiful creature from inner space otherwise known as the deep blue. Paul :)

  • Great 
  • dew77 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4432 W: 248 N: 4028] (13270)
  • [2005-11-11 11:16]

Hello Alain!
Wonderful photo and presentation.I liked colors,clear details and composition a lot.TFS...:-)

Alain, this one is really "extramundi" and I appreciate the different framing. Very interesting creature, thanks for the note too.
Regards, Felipe.

Strange creature. I saw lots of sea slugs in tide pools in California.

The colors are amazing. I find them always a pleasure to look at. Nicely done Alain.


You do have some beautiful work. Fascinating creature here. Wonderful color and good POV.


Bon soir Alain,
Beautiful shot of the Red Sea Slug. Attractive colours, and I add your work to my new theme "under and above the seas"
Thanks for sharing
Warm greetings from the Tzaneen Dam in Limpopo, South Africa

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