Mollusca
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In the dark night, in the open ocean (Solomonsea), these transparent nudibranchs can be seen in the light of the headlights
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Aplysia nigrocincta is probably the smallest species of Genus Aplysia in the Philippines, reaching a maximium length of about 6 cm. It's colour is very variable, mottled red-brown, green or black, the large parapodial flaps have a black and/or a whitish/cream edge.
This species is an algae grazer, feed zoobenthos and detritus.
Romblon, Philippines.
The body of the Cyerce bourbonica is covered in fewer than 30 slightly inflated and tubercular cerata. They can be flat or swollen, angular with rounded corners, with few black, yellow spots, olive-green patches. ight green to light brown.
This flowerlike sea slug can also swim if disturbed. They can be found in protected as well as exposed rocky habitats and Halimeda kanaloana beds.
Cyerce bourbonica is an algae eater. Romblon, Philippines.
Cyerce sp 5 (NSSI)
Frosty the nudibranch.
First time I ever saw one like this. It is tiny and the beautiful details only reveal themselves when you can see the photo up the screen. Nature is awsome!
Stripes or dots? Or both ?
Cyerce nigra is a sacoglossan (sap-sucking) sea slug of the Caliphyllidae (Polybranchiidae) family. The members of this family are easily recognized externally by the possession of long bifurcated (forked) rhinophores and the distinctive shape of their cerata, being usually flattened and either leaf-like or wedge-shaped and sometimes cushion-like (inflated). The Cyerce are distinguished from other members of the family by having a transverse furrow dividing the sole of the foot at the anterior third mark but this is difficult to ascertain in the field or from the usual aspect at which photos are taken.
Cyerce nigra possesses leaf-like cerata densely crowded and overlapping on the dorsum that are readily autotomized. The dorsal or outside surface of the cerata is patterned with white transverse stripes on a black background whilst the ventral surface is black with orange/yellow spots. These contrasting patterns on opposite sides of the cerata are striking to say the least. The edging to both surfaces carries a fine black line with a sub-marginal faint white line and inside of that a broader orange/yellow band. The spots are actually raised pustules capable of secreting noxious substances for defensive purposes. The digestive diverticula only penetrate into the stem of the cerata and so are not to be seen in the cerata per se. The rhinophores are rolled (hollow) and bifurcated for approximately half their length (see photo of head at left). It lays a flat white spiral egg mass.
It is quite similar in appearance to the earlier described Cyerce nigricans (Pease, 1866) however that species exhibits the spots on both surfaces of the cerata without any stripes and having the edging to the cerata white followed successively by black then orange/yellow sub-marginal bands. (Wikipedia) Romblon, Philippines.
Glossodoris acosti is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae. Mabini, South Luzon, Philippines.
This one needs some gel to keep its hair in place...
Phestilla lugubris is widespread throughout the tropical Indo-West Pacific, It feeds on colonies of the coral Porites, often in very shallow waters. Probably much more common than realised, it is very cryptically coloured and often hidden in crevices and beneath the coral blocks to avoid heavy fish predation.
Romblon, Philippines
Reticulidia halgerda is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae. Reticulidia halgerda grows to a maximum length of 7.0 cm. This species is different externally and internally from species in the Phyllidia and Phyllidiopsis genera, both of which also have yellow coloration and tuberculate ridges.
All bubbly...
Doto ussi is a species of sea slug, a dendronotid nudibranch, a marine gastropod mollusc in the family Dotidae. This species was described from the Comoros Islands, in the Indian Ocean. It has subsequently been reported from the Philippines and Indonesia. They are found on colonies of the stinging hydroid, Aglaophenia cupressina (family Aglaopheniidae), on which it presumably feeds. (Wikipedia)
Lembeh Strait, North Sulawesi, Indonesia.
With the light of a snoot, this nudibranch gets a golden glow.
Thecacera is a genus of sea slugs, specifically nudibranchs, shell-less marine gastropod mollusks in the family Polyceridae.
Lembeh Strait, North Sulawesi, Indonesia.
Hypselodoris krakatoa is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae. The volcano Hypselodoris has a pale brown-white body and a purplish-blue foot. There are black lines and white spots running in lines across its body and dorsum. The gills are a light-brown colour and its rhinophores are orange-white. This species can reach a total length of at least 55 mm. Romblon, Philippines
Sagaminopteron psychedelicum is a species of Batwing Slug from the family of Gastropteridae. They are very small (4-5mm) and also come in greenish-blue color. Mabini, South Luzon, Philippines
Trapania vitta is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae. The body of this goniodorid nudibranch is opaque white. The gills and rhinophores are white with orange tips and the lateral papillae are entirely white. The oral tentacles are orange and there is usually an orange line extending from the tip of the tail partway towards the gills. It probably feeds on Entoprocta which often grow on sponges and other living substrata. Romblon, Philippines
Chromodoris kalawakan is a nudibranch that has only been described in 2020. It is completely white with a fine red border on its mantle and red tips on the rhinophores. This one was about 10mm long.
Pink like candy.
It seems that this is still another kind of hypselodoris but not specified yet. The difference with the others is that this one has white tips instead of white bands on the rhinophores.
Mabini, South Luzon, Philippines.
Melibe colemani, also known as the Coleman's melibe, ghost nudi, or ghost melibe, is a species of nudibranch in the family Tethydidae. Discovered by Neville Coleman in 2008 off the coast of the island of Mabul in Malaysia, it was formally described by Marta Pola and Terrence Gosliner in 2012 and named in honour of its discoverer. It is found throughout the Coral Triangle region of Malaysia, Indonesia, and the Philippines.
Due to its translucent body and network of brown tubules across its body, its appearance has been described as a "pile of strings" or a "string of snot in the water". This appearance is likely to serve as camouflage, resembling oceanic debris. Its strange appearance has led some to dub it "the holy grail of nudibranchs".
Elysia marginata is described as having a green body with black and cream spots. It has tall, thin parapodia with a black band along its parapodial edge and a submarginal orange band. This species can be distinguished from other Indo-Pacific species by the white band found between the orange and black marginal bands. It has both a sedentary and migratory form, with the sedentary form reaching up to 76 millimetres (3.0 in) in length. They live in shallow water and feed on Bryopsis algae off the rocky bottom.(Wikipedia) Mabini, South Luzon, Philippines
Goniobranchus kuniei is a species of very colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae. Goniobranchus kuniei has a pattern of dark spots with pale blue haloes on a creamy mantle. There is a double border to the mantle of purple and blue. The length of the body reaches 40 mm. The species Goniobranchus tritos and Goniobranchus geminus have similar colour patterns. (Wikipedia). Mabini, South Luzon, Philippines.
Janolus savinkini, common name purple-tipped janolus, is a colorful sea slug, an arminina (a suborder of Janolus) nudibranch, a marine gastropod mollusc in the family Proctonotidae. The body and caruncle of this species are yellow with a hue of light orange. The papillae and cerata are also this colour except for the tips, which are blue/purple, hence the common name. (Wikipedia) Anilao, South Luzon, Philippines
Aplysia nigrocincta is probably the smallest species of Genus Aplysia in the Philippines, reaching a maximium length of about 6 cm. It's colour is very variable, mottled red-brown, green or black, the large parapodial flaps have a black and/or a whitish/cream edge.
This species is an algae grazer, feed zoobenthos and detritus.
Romblon, Philippines.
Chromodoris magnifica can reach a maximum size of 60 mm (2.4 in) in length. The body is elongate with a foot which is distinct from the upper body by a skirt like mantle hiding partially the foot. The branched gills and the rhinophores are orange colour and can be withdrawn into specific pockets under the skin in case of danger. The specific epithet magnifica in Chromodoris magnifica means magnificent, so-named because of this nudibranch's striking, vibrant colors.
The background colour of the body is bluish white which varies in intensity from one specimen to another. On the mantle, the bluish area is outlined by two continuous black lines and a median continuous line crosses it also. These bluish parts are often marked with dash-like black lines. The margin of the mantle is bordered with a large white band with a central orange colour line, the width of these lines is variable for each specimen. The foot has three black continuous longitudinal lines. Its background colour is the same as its mantle. The margin of the foot is outlined by an orange and a white line. (Wikipedia)
Mabini, South Luzon, Philippines
Trinchesia is a genus of sea slugs, aeolid nudibranchsin the family Trinchesiidae. They feed on hydroids. (Wikipedia) Lembeh Strait, North Sulawesi, Indonesia
Phyllodesmium jakobsenae is a species of sea slug, an aolid nudibranch, a marine gastropod mollusk in the family Myrrhinidae. The distribution of Phyllodesmium jakobsenae includes Bunaken Island, North Sulawesi, Indonesia and the Philippines. This species contains zooxanthellae of the genus Symbiodinium in the digestive gland (hepatopancreas). It grows to 30 mm in length. Phyllodesmium jakobsenae feeds on the soft coral Xenia. (Wikipedia) Mabini, South Luzon, Philippines
Phenacovolva poppei is a species of sea snail, a marine gastropod mollusk in the family Ovulidae, the ovulids, cowry allies or false cowries. It feeds on black coral and grows to a max of 38mm. Mabini, South Luzon, Philippines
Trying to bring some light onto this almost transparent nudibranch.
Melibe colemani, also known as the Coleman's melibe, ghost nudi, or ghost melibe, is a species of nudibranch in the family Tethydidae. Discovered by Neville Coleman in 2008 off the coast of the island of Mabul in Malaysia, it was formally described by Marta Pola and Terrence Gosliner in 2012 and named in honour of its discoverer. It is found throughout the Coral Triangle region of Malaysia, Indonesia, and the Philippines.
Due to its translucent body and network of brown tubules across its body, its appearance has been described as a "pile of strings" or a "string of snot in the water". This appearance is likely to serve as camouflage, resembling oceanic debris. Its strange appearance has led some to dub it "the holy grail of nudibranchs".
Nembrotha milleri is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Polyceridae. This species was named after the nudibranch enthusiast Michael D. Miller. This animal can reach a total length of at least 60 mm. It has a grey-green to dark green body with blackish longitudinal wrinkles running down the length of the body. Nembrotha milleri feed on colonial sea squirts, also known as ascidians.
A genus of nudibranchiate gastropod molluscs (properly called Phylliroe) having a thin translucent body with no foot, cerata, or ctenidia, living in the open sea and respiring by means of the exchange of gases across the whole body surface; (also phyllirhoe) a mollusc of this genus.
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Many thanks to all visitors of my photo stream for your kind comments and criticisms, invitations and favourites.
all visitors and friends of my photostream, a big thank you for your comments and reviews, invitations and favorites.
__________________________________________________
All rights reserved. Copyright © Seapixel, Papua New Guinea
All my images are protected under international authors copyright laws and may not be downloaded, reproduced, copied, transmitted or manipulated without my written explicit permission.
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Costasiella usagi is characterized by its white longitudinal lines on the cerata. The head is white, the rhinophores are basal white, the apical region is black. The eye spots are relatively close together between the rhinophores as in all species of Costasiella. (Philippines-sea-slug.com)
Hypselodoris bullockii is a species of colourful sea slug or dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.
Hypselodoris bullockii is quite pale purple in colour. It has been mistaken for a number of other species. These include the closely related species Hypselodoris variobranchia and Hypselodoris violacea as well as the unrelated species Hypselodoris iba. Hypselodoris apolegma, which looks similar to this species (and is distinguished by a reticulate pattern gradually merging in to the pinkish purple, was previously assumed to be possibly a different colour form of H. bullockii. However, molecular phylogenetic data confirm the distinction of the many species. This one is laying eggs. (Wikipedia) Mabini, South Luzon, Philippines
Not an easy subject because of the texture of the seaslug.
Melibe engeli feed on shrimps, crabs and other small crustacea which they catch by waving the inflated oral hood over the substrate like a metal detector. When the sensory papillae touch a crustacean the hood rapidly closes, trapping the prey inside where it is gradually moved back to the 'mouth'.
Mabini, South Luzon, Philippines
Just sitting there being beautiful.
Cyerce nigra is a sacoglossan (sap-sucking) sea slug of the Caliphyllidae (Polybranchiidae) family. The members of this family are easily recognized externally by the possession of long bifurcated (forked) rhinophores and the distinctive shape of their cerata, being usually flattened and either leaf-like or wedge-shaped and sometimes cushion-like (inflated). The Cyerce are distinguished from other members of the family by having a transverse furrow dividing the sole of the foot at the anterior third mark but this is difficult to ascertain in the field or from the usual aspect at which photos are taken.
Cyerce nigra possesses leaf-like cerata densely crowded and overlapping on the dorsum that are readily autotomized. The dorsal or outside surface of the cerata is patterned with white transverse stripes on a black background whilst the ventral surface is black with orange/yellow spots. These contrasting patterns on opposite sides of the cerata are striking to say the least. The edging to both surfaces carries a fine black line with a sub-marginal faint white line and inside of that a broader orange/yellow band. The spots are actually raised pustules capable of secreting noxious substances for defensive purposes. The digestive diverticula only penetrate into the stem of the cerata and so are not to be seen in the cerata per se. The rhinophores are rolled (hollow) and bifurcated for approximately half their length (see photo of head at left). It lays a flat white spiral egg mass.
It is quite similar in appearance to the earlier described Cyerce nigricans (Pease, 1866) however that species exhibits the spots on both surfaces of the cerata without any stripes and having the edging to the cerata white followed successively by black then orange/yellow sub-marginal bands. (Wikipedia)
A nudibranch wih a goofy smile...
Armina scotti n. sp. is characterized by its black dorsum with pale yellowish notal ridges, widened forming three rounded blotches, not divergent posteriorly, not bifurcated; oral veil white, with a pale blue submarginal band and yellow edge; white rhinophores with a black subterminal band, which is pale blue on the inner-front sides, orange tips, and a black stripe running to the sides of the oral veil. The cutting edge of the jaws with up to four rows of denticles (Seaslug World)
Chromodoris quadricolor is a species of very colourful sea slug, a dorid nudibranch, a marine opisthobranch gastropod mollusc.The specific epithet quadricolor means four-coloured, so-named because this nudibranch is yellow, white, blue and black in color. This dorid nudibranch was described from the Red Sea where it is one of the commonest nudibranchs. It has been reported from other localities in the Western Indian Ocean. This species feeds on the red sponge Negombata magnifica or toxic fingersponge. Nuweiba, South Sinaï, Egypt.
Beautiful contrast of colours on this nudibranch that can grow up to 15cm. This one was about 4cm. They feed on sponges. Lembeh Strait, North Sulawesi, Indonesia.
solar-powered sea slugs
Some sacoglossans simply digest the fluid which they suck from the algae, but in some other species, the slugs sequester and use within their own tissues living chloroplasts from the algae they eat, a very unusual phenomenon known as kleptoplasty, for the "stolen" plastids.[5] This earns them the title of the "solar-powered sea slugs", and makes them unique among metazoan organisms, for otherwise kleptoplasty is known only among single-celled protists. (Wikipedia)
Canon EOS 5DSR © 2022 Luc Legrand. Photos are copyrighted. All rights reserved. Pictures can not be used without explicit permission by the creator.
More fantastic Pic's:You can buy picture's like this as a Poster or Print: www.pictrs.com/travel-pics?l=de
Many thanks to all visitors of my photo stream for your kind comments and criticisms, invitations and favourites.
all visitors and friends of my photostream, a big thank you for your comments and reviews, invitations and favorites.
__________________________________________________
All rights reserved. Copyright © Seapixel, Papua New Guinea
All my images are protected under international authors copyright laws and may not be downloaded, reproduced, copied, transmitted or manipulated without my written explicit permission.
__________________________________________________
Goniobranchus preciosus has a white mantle with three lines of colour at the edge. The mantle rim is marked by a thin white line, with a dark red band inside this and then a yellow band. The rhinophore clubs are brown with white edges to the lamellae and the gill leaves are also brown with white markings. The body length varies between 15 mm and 30 mm. This species is very similar to Goniobranchus verrieri and most easily distinguished by the white margin to the mantle. Goniobranchus trimarginatus is also similar, but has white gills and rhinophores and red speckles in the middle of the back.(Wikipedia) Anilao, South Luzon, Philippines