View allAll Photos Tagged Translucent

Found these almost translucent mushrooms on the banks of a little river i walked this morning. They were actually hard to photograph as they were so white.

Hydra magnified using Leica stereoscope and shot on Nikon S52.

 

It's a magical feeling to look at them float around in water.

View it large on black background to feel some of that magic...

decluttr.com/4728113142

  

Bocas del Toro, Panama

Bocas del Toro (meaning "Mouth of the Bull") is a province of Panama. Its area is 4,643.9 square kilometers, comprising the mainland and nine main islands. The province consists of the Bocas del Toro Archipelago, Bahía Almirante (Almirante Bay), Laguna de Chiriquí (Chiriquí Lagoon), and adjacent mainland. The capital is the city of Bocas del Toro (or Bocas Town) on Isla Colón (Colón Island). Other major cities or towns include Almirante and Changuinola.

 

Christopher Columbus and his crew first visited the area in 1502. Bocas del Toro borders the Caribbean Sea to the north, Limón Province of Costa Rica to the west, Chiriquí Province to the south, and Ngöbe-Buglé Comarca to the east. The Río Sixaola forms part of the border with Costa Rica. An old railroad bridge spans the river between Guabito and Sixaola, Costa Rica. The bridge is a border crossing used by tourists going between destinations in Bocas del Toro and Costa Rica.

Bangkok, Thailand

 

Textures by Osolev

Translucent polymer clay and soft pastels

I like how you can see the stigma (I think) through the petals.

 

Proper "angle of dangle" picture. Lying on my back, waiting for the breeze to drop, and trying not to get anything else in the picture.

 

Entry for Macro Mondays "looking up" - a poppy looking up towards the sunshine.

 

DSC_6676-1-resized

Male eastern bluebird feeds on juniper berries. Taken February '14 on Shelter Island, NY.

Photo/Image/Picture Editor:

 

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I looooove the tilt-neck licca! The only sucky thing is that the arms don't bend. But I loooove this color of mohair, it's such a deep gorgeous red.

Its been a while since my last self portrait so decided to be bold and brave with this one.

 

Landscapes are what i really like and havent ever been that into portraits but i have always fancied doing shots for bands mainly rock or metal bands and some of my favourtie images are from the old school punk/metal bands like "Madball" or "Agnostic Front" the slightly cheesey staged front covers with the members are the best!

 

That in mind id always wanted to use my garage to shoot and ran out whilst the dinner was cooking, so this was a bit rushed,..

 

I took one shot under exposed by -3 for the background which i further edited within Gimp 2.6

My second shot was taken with a flash exposure compensation of -2. I edited this in gimp as well and layered them together making my opacity just under half.

 

Id thought about adding text possibley "TRANSLUCENT" above my head but couldnt get it to look very good. not sure you can do anythign fancy in gimp with it, again any ideas or tips would be welcome.

Time:9:00am. Sunlight. Canon 100L

seen in Yokohama, Kanagawa, Japan

a little tortoiseshell i found, he looked so pretty when the sun shone through his wings!

 

hope everyone has a great weekend

 

(PLEASE NO AWARDS OR PICTURES OR FLASHY BADGES)

Plum blossoms @Kamiya winery..../Pentax K-7,"smc P-D FA 100mm F2.8" Aperture3@Ibaragi-ken Japan

ISO200.100mm.0ev.f/5.1/320

© All rights reserved - Do not use without permission.

Saw it today, photographed it, posted it. That's what photography is about, isn't it?

  

Whidbey Island in Washington State.

Translucent 7, 58x42x7 cm, mixed media, 2010

A couple of loonies. I'm not sure if they have any official connection to the Ugly Wugglies pencil holder monsters, but the faces look similar.

Le Mulet Coureau, from Pont des Arts

Slender, sinuous, translucent body, tinted dark blood red, lacks opaque pigment marks. Head is a paler shade of the same colour. The pointed posterior of the foot protrudes a short distance beyond the cerata.

Co. Clare, Ireland, March 2022. © É. Hughes, det. J. Nunn.

Full SPECIES DESCRIPTION BELOW

PDF available at www.researchgate.net/publication/366186525_Aeolidiella_sa...

Sets of OTHER SPECIES at: www.flickr.com/photos/56388191@N08/collections/

 

Aeolidiella sanguinea (Norman, 1877)

 

Synonyms: Eolis sanguinea Norman, 1877.

Current taxonomy: World Register of Marine Species

www.marinespecies.org/aphia.php?p=taxdetails&id=138714

 

GLOSSARY BELOW

 

Description

The slender, sinuous body grows up to 46 mm long (Thompson & Brown, 1984). It is translucent, tinted dark blood red fig. 01 flic.kr/p/2o5aE4v to orange-red fig. 02 flic.kr/p/2o5d53C and lacks any opaque pigment marks. The red tinting mostly, or entirely, obscures the internal viscera fig. 03 flic.kr/p/2o5fuH4 .

The cerata are arranged in about fifteen transverse rows of five or six on each side of the body. There is often a gap of exposed notum running most of the body length between left and right rows of cerata fig. 04 flic.kr/p/2o5aLhh . Like the body, the cerata are translucent red with no surface pigment. The contents of the internal digestive gland are usually brown but their visibility varies with the intensity of the red tinting fig. 03 flic.kr/p/2o5fuH4 . Sometimes the contents have pale mottling which can be mistaken for surface pigment tip fig. 02 flic.kr/p/2o5d53C . Each ceras has, distally above the digestive gland, a large white cnidosac tinted by the reddish integument fig. 04 flic.kr/p/2o5aLhh . On strongly tinted specimens the cnidosac appears bright red fig. 03 flic.kr/p/2o5fuH4 . The cerata in the anterior row often have dark contents only in the basal section. The rest of each ceras is occupied by a large white cnidosac and pale digestive gland. If the red tinting is not intense, the general colour is whitish and may resemble the white ruff of A. alderi fig. 04 flic.kr/p/2o5aLhh .

The smooth, sometimes wrinkled fig. 02 flic.kr/p/2o5d53C , translucent rhinophores are coloured as the body except for a distinct white apical zone fig. 03 flic.kr/p/2o5fuH4 & fig. 05 flic.kr/p/2o5aLft .

The head is coloured as the body but is sometimes paler fig. 01 flic.kr/p/2o5aE4v , and the oral tentacles are usually paler fig. 02 flic.kr/p/2o5d53C . Internal eyes are usually visible at the posterior base of the rhinophores, unless hidden by the tilt of a rhinophore fig. 06 flic.kr/p/2o5aL9g . The internal, opaque white internal jaw and buccal mass are occasionally faintly visible through the red tinting fig. 05 flic.kr/p/2o5aLft . The distance between oral tentacles at their base is about equal to thickness of a single tentacle base fig. 05 flic.kr/p/2o5aLft .

The narrow foot is usually concealed by overhanging cerata. When at its widest extension it may be twice as wide as the body fig. 07 flic.kr/p/2o5eAzv . It has a pointed posterior which sometimes protrudes a short distance beyond the cerata fig. 01 flic.kr/p/2o5aE4v . The convex anterior continues into short propodial tentacles which often bend forwards at the tip resulting in a sigmoid foot anterior fig. 06 flic.kr/p/2o5aL9g . The sole is usually transparent colourless showing the red of the cerata above when viewed ventrally fig. 07 flic.kr/p/2o5eAzv . The dorsal surface of the foot has no opaque pigment marks or flecks fig. 05 flic.kr/p/2o5aLft .

 

Key identification features

Identification should be made with more than one feature as there is some interspecific overlap. For example, a whitish ruff of anterior cerata can sometimes be found on all three Aeolidiella species, though it is usually most fully developed on A. alderi. In some cases molecular sequencing may be required for certainty.

 

Aeolidiella sanguinea (Norman, 1877)

1) Maximum length 46 mm (Thompson & Brown, 1984). Slender sinuous body fig. 02 flic.kr/p/2o5d53C is more slender than A. glauca and A. alderi fig. 08 flic.kr/p/2o5aL7h .

2) From above, internal eyes usually visible through translucent body unless hidden by tilt of rhinophore fig. 06 flic.kr/p/2o5aL9g .

3) All cerata have a large white cnidosac variably tinted by the orange to red surface of the cerata fig. 03 flic.kr/p/2o5fuH4 . Front row often has dark contents only in base of digestive gland. Rest of cerata with white cnidosac and pale digestive gland may resemble white ruff of A. alderi if red tinting not intense fig. 04 flic.kr/p/2o5aLhh .

4) No opaque flecks on notum fig. 03 flic.kr/p/2o5fuH4 .

5) Distance between oral tentacles about same as thickness of single tentacle base fig. 05 flic.kr/p/2o5aLft .

6) Anterior edge of foot often sigmoid with short propodial tentacles curved forward at tip fig. 06 flic.kr/p/2o5aL9g .

7) No surface pigment on dorsal periphery of foot fig. 05 flic.kr/p/2o5aLft , oral tentacles or cerata, but rhinophores have distinctly demarcated white tips fig. 03 flic.kr/p/2o5fuH4 & fig. 05 flic.kr/p/2o5aLft .

8) Body, rhinophores and cerata are translucent red, orange or yellow,

9) Spawn; a plain spiral line fig. 09 flic.kr/p/2o5fuxj .

10) A southern species which extends north to the south and west coasts of Britain and Ireland.

 

Similar species

Aeolidiella alderi (Cocks, 1852) fig. 10 flic.kr/p/2o5eAxM .

1) Maximum length 37 mm (Thompson & Brown, 1984). When extended, fairly robust but more slender than Aeolidia papillosa, A. filomenae and Aeolidiella glauca. Usually straighter than the more slender, sinuous A. sanguinea.

2) From above, internal eyes usually visible through translucent body unless hidden by tilt of rhinophore.

3) Front row of cerata makes a white ruff with white zone in each ceras usually 50% or more of length.

4) No opaque flecks on dorsum.

5) Distance between oral tentacles about same as thickness of single tentacle base .

6) Anterior edge of foot a smooth crescent terminating in short triangular propodial tentacles which do not usually curve forward at the tip .

7) White or yellow pigment distally on rhinophores, oral tentacles and cerata, but no white pigment stipple on dorsal periphery of foot.

8) Body translucent white fig. 11 flic.kr/p/2o5fuws . Some tinted yellowish or reddish fig. 12 flic.kr/p/2o5fuvW .

9) Spawn is a deeply sinuous line arranged loosely in a disc fig. 13 flic.kr/p/2o5d4Nj .

10) Occurs from Mediterranean to south and west Ireland and to south and west Britain as far north as Anglesey.

 

Aeolidiella glauca fig. 14 flic.kr/p/2o5fRd5 & fig. 15 flic.kr/p/2o5fRc8

1) Maximum length 40 mm (Thompson & Brown, 1984). Body broad in comparison with A. sanguinea and A. alderi . Often, overall pinkish appearance from cerata, especially when viewed through translucent foot.

2) From above, internal eyes usually visible through translucent body.

3) Anterior cerata may be white and resemble the more fully developed white ruff on A. alderi .

4) Anterior half of body copiously speckled with pale opaque pigment fig. 5) Distance between oral tentacles about same as thickness of single tentacle base.

6) Anterior edge of foot has short propodial tentacles which may curve forwards at the tip.

7) White pigment stipple on dorsal periphery of foot, oral tentacles, cerata and, distally, on rhinophores.

8) Body translucent white, anterior often translucent orange.

9) Spawn, a plain non-sinuous spiral line fig. 16 flic.kr/p/2o5d4G7 ; white contents divided into sections by clear breaks; ova small so width of spawn line 5 or 6 times diameter of one ovum.

10) A northern species which extends south to the south coast of Britain and possibly to France.

 

Aeolidia papillosa (Linnaeus, 1761) fig. 17 flic.kr/p/2o5fR7Z .

1) Maximum length120 mm (Thompson & Brown, 1984). Body broader than Aeolidiella sanguinea.

2) Internal eyes not, or barely, visible through opaque pigment.

3) Dull whitish cnidosac visible if not obscured by white apical pigment.

4) Much opaque pigment on dorsum.

5) Distance between oral tentacles about three times thickness of tentacle base.

6) Anterior edge of foot a smooth crescent terminating in short triangular propodial tentacles.

7) Much pigment on rhinophores and cerata. Often dark and whitish pigment stipple on dorsal periphery of foot.

8) Most of body, rhinophores and cerata not translucent.

9) Spawn; large convoluted ribbon, standing upright in water, deposited in spiral fig. 18 flic.kr/p/2o5fujy .

 

Aeolidia filomenae Kienberger, Carmona, Pola, Padula, Gosliner & Cervera, 2016 fig. 19 flic.kr/p/2o5eAjR .

1) Maximum length at least 70 mm. Body broader than Aeolidiella sanguinea.

2) Internal eyes sometimes faintly visible in light specimens.

3) Apices of cerata are white, often revealing large white cnidosacs.

4) Dorsum white or pale colour with opaque white or brown flecks which may concentrate locally into dense brown markings.

5) Distance between oral tentacles about three times thickness of tentacle base.

6) Anterior edge of foot a smooth crescent terminating in short triangular propodial tentacles.

7) Rhinophores and cerata are translucent with varying amounts of opaque white and brown freckling. Usually no pigment stipple on dorsal surface of foot.

8) Some parts of body and cerata may be translucent.

9) Spawn; large convoluted ribbon, standing upright in water, deposited in spiral fig. 20 flic.kr/p/2o5aKN1 .

 

Habits and ecology

A. sanguinea lives sublittorally and, occasionally, at low water spring tide at sheltered sites. Thompson & Brown, (1984) list its Actiniaria prey fig. 21 flic.kr/p/2o5aKJU as Sagartiogeton undata Müller, Cylista troglodytes (Price in Johnston, 1847) and C. elegans (Dalyell, 1848) , Cereus pedunculatus (Pennant, 1777), Diadumene cincta Stephenson, 1925 and Aiptasis couchii Gosse, 1858.

Like other nudibranchs, A. sanguinea is a simultaneous hermaphrodite. Spawn is deposited in a non-sinuous spiral line fig. 09 flic.kr/p/2o5fuxj . Veliger larvae hatch from the spawn and drift as plankton before settling on the sea floor and transforming into adults.

 

Distribution and status

A. sanguinea is a southern species extending north from Atlantic Iberia as far as the south and west coasts of Britain and Ireland where it is the rarest and least recorded of the three occurring Aeolidiella species.

GBIF map www.gbif.org/species/2291948

UK map, NBN species.nbnatlas.org/species/NBNSYS0000173624

iNaturalist map www.inaturalist.org/observations?taxon_id=492401 .

Uncertainty about identifications of Aeolidiella records lacking the support of clear images make its distribution uncertain. Even some records with images lack certainty as A. alderi sometimes has its translucent body tinted red or orange fig. 12 flic.kr/p/2o5fuvW . Records from the North Sea require convincing images for confirmation. No Mediterranean records of it are shown on GBIF or iNaturalist and it is not listed for the Adriatic in Prkić et al. (2018), so it may be absent from the Mediterranean.

 

Acknowledgements

For use of images I thank Guy Freeman, Rokus Groeneveld, Éabha Hughes, Ben James MARINEPHOTOS@nature.scot, Sylvain Le Bris, João Pedro Silva, Malcolm Storey, Stefan Verheyen, and Mathias Meunier and Lou Valence. I thank Simon Taylor for specimens.

 

References and links

Groeneveld, R. & Reijs, S. (accessed 12 November 2022) Zeenaaktslakken, Nudibranchia. www.diverosa.com/FF_NL/ff_zeenaaktslakken.htm

 

Prkić, J., Petani, A., Iglić, Đ. and Lanča, L. 2018. Opisthobranchs of the Adriatic Sea. Photographic atlas and list of Croatian Species. Croatia.

 

Storey, M. W. BioImages, virtual fieldguide UK www.bioimages.org.uk/ (accessed 30 November 2022)

 

Tardy, J. 1969. Étude systématique et biologique sur trois espèces d’Aeolidielles des côtes européennes (Gastéropodes Nudibranches). Bull. Inst. Oceanogr. Monaco 68: 1 – 40.

 

Thompson, T.E. & Brown, G.H. 1984. Biology of opisthobranch molluscs 2. London, Ray Society.

 

Glossary

cerata = (sing. ceras, adj. ceratal) lobes on notum of some nudibranchs.

Cnidaria = hydroids, jellyfish, sea anemones etc. which possess cnidocytes.

cnidocytes = explosive stinging cells of Cnidaria. en.wikipedia.org/wiki/Cnidocyte

cnidosac = storage capsule at tips of cerata of Aeolidiidae for ingested cnidocytes.

digestive gland = large organ in gastropods which acts like the liver and pancreas in mammals to absorb food.

 

distal = away from centre of body or from point of attachment.

hermaphrodite, simultaneous = individual acts as both male and female at the same time with similar partner.

 

integument = an enveloping layer, such as a skin, membrane or cuticle, of an organism or one of its parts.

 

notum = (of sea slugs) the dorsal surface of the body; the back.

propodial tentacles = tentacular, lateral extensions on anterior of the foot.

rhinophore = chemo-receptor tentacle; many sea slugs have a pair on top of the head.

veliger = shelled larva which moves by action of cilia on a velum (bilobed flap). Stage may be passed in plankton or within liquid-filled egg-capsule.

  

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