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Goniodoris castanea

Alder & Hancock, 1845


Craig Muirhead Goniodoris castanea spawning Eyemouth, Scotland 09/08/13 Depth 5m, water temp 13°C

David Kipling How big was this little critter Craig? I've seen iddy-biddy ones on Bot schloss inter-tidally and humungous ones on B violaceus in marinas.

Craig Muirhead This one was 25-30mm David.

Message posted on NE Atlantic Nudibranchs on 17 Aug 2013
George Brown Goniodoris castanea eggs. Ring about 40mm in diametre. Photo shows one of about five rings. Maxwell Bank, 8 kilometres east of the Isle of Muck, Scotland. Depth 35 metres.

Message posted on NE Atlantic Nudibranchs on 13 Jul 2012
Keith Hiscock Rob Durrant has found nine specimens of this slug on the North Devon coast (intertidal) and identified it as Goniodoris castanea. The picture seems to have the 'right' features. Does anyone have comments as the record would seem unusual.

João Pedro Silva Yes, it appears to be G. castanea. I've only seen two individuals and they were very similar: http://www.flickr.com/photos/jpsilva1971/6828067092/

David Kipling We (Ive seen the pic not the critter sadly) get it across the Bristol Channel in Pembs. Was there plenty of Bot schlosh around for it to eat?

David Fenwick Snr Looks like G. castanea to me and I've seen the species a few times intertidally at Spit Point, Par, Cornwall. Only record I can see for the north coast of Cornwall is at Portreath. More common on the south coast. Have always found it on Bot schlosh, juveniles are very well camoflagued on Bot schlosh and quite difficult to see.

Brendan Oonk Yes it is G.castanea. (This nudi is common in the Netherlands.)

Julia Nunn Hi Keith Looks like Goniodoris castanea to me Julia

Tony Gilbert Would you say this is also ? http://www.flickr.com/photos/tonyjgilbert-images/4929396419/in/set-72157624688589439

João Pedro Silva Yes, I think so, Tony.

Tony Gilbert Ok, thanks Joao. This was in 1.5m of water on a sand shelf below which was a 50m vertical wall that is Auliston Point, in Scotland.

Message posted on NE Atlantic Nudibranchs on 11 Jun 2012
Claudio Giulianini Bruttissimo ma mi piace per questo ..... peccato che non sappia cos'è. Piallassa o Valle della Baiona (Ravenna) Nikon D200 - Sea&Sea YS90 + Sea&Sea YS60 - Nikon 105 Macro - Manual settings

Claudio Giulianini Grazie a Enrico Ricchitelli: Goniodoris castanea

Message posted on Scubashooters.net on 13 May 2013
David Kipling By-catch. Do these look like cerata/rhinophores peeking out of the oral siphon of this compound ascidian (Botrylloides I think)? Strangford Lough Northern Ireland this summer, squirt gives the scale!

David Kipling If it is a nudi then it's not Goniodoris castanea (which eats compound squirts) because of the cerata. Which then exhausts my supply of compound squirt-eating nudis ...

Peter H van Bragt This looks like some sort of cnidarian.

João Pedro Silva More likely to be a cnidarian.

David Kipling No idea what it's doing posing as a zooid though ;)

Message posted on NE Atlantic Nudibranchs on 05 Oct 2013
Keith Hiscock Rob Durrant has found nine specimens of this slug on the North Devon coast (intertidal) and identified it as Goniodoris castanea. The picture seems to have the 'right' features. Does anyone have comments as the record would seem unusual.

João Pedro Silva Yes, it appears to be G. castanea. I've only seen two individuals and they were very similar: http://www.flickr.com/photos/jpsilva1971/6828067092/

David Kipling We (Ive seen the pic not the critter sadly) get it across the Bristol Channel in Pembs. Was there plenty of Bot schlosh around for it to eat?

David Fenwick Snr Looks like G. castanea to me and I've seen the species a few times intertidally at Spit Point, Par, Cornwall. Only record I can see for the north coast of Cornwall is at Portreath. More common on the south coast. Have always found it on Bot schlosh, juveniles are very well camoflagued on Bot schlosh and quite difficult to see.

Brendan Oonk Yes it is G.castanea. (This nudi is common in the Netherlands.)

Julia Nunn Hi Keith Looks like Goniodoris castanea to me Julia

Tony Gilbert Would you say this is also ? http://www.flickr.com/photos/tonyjgilbert-images/4929396419/in/set-72157624688589439

João Pedro Silva Yes, I think so, Tony.

Tony Gilbert Ok, thanks Joao. This was in 1.5m of water on a sand shelf below which was a 50m vertical wall that is Auliston Point, in Scotland.

Message posted on NE Atlantic Nudibranchs on 11 Jun 2012
George Brown What a timely contribution from Georgia! Welcome to NE Atlantic Nudibranchs. I found Goniodoris castanea for the first time two days ago. The photo shows one of a pile of eight having a "love in". Noticed the eggs first then the nudibranchs on the underside of a boulder. Maxwell Bank, 8 kilometres east of the Isle of Muck, Scotland. Depth 35 metres.

Jimmy Whyte Is that a shrimp to the left of the picture?

George Brown It's Pandalus montagui. Thousands of them.

Message posted on NE Atlantic Nudibranchs on 13 Jul 2012
Erling Svensen I do not find another name for this one than Ancula gibbosa? From Norway, 8 meters of seawater, 2 degrees in the water - today. The nudi only 5 - 7 millimeter long.

David Kipling Certainly looks like it to me, and easier to identify than David Fenwick's specimen ;)

João Pedro Silva I agree it's Ancula gibbosa.

David Fenwick Snr David you'll be relieved to know I've just been on ebay looking at snorkeling equipment. Hopefully I'll find some larger ones just out of my normal range. LOL.

Erling Svensen Jippiiiii, a new specie for me (number 60 aprox. from Norway)

João Pedro Silva David Fenwick Snr, even at the surface, it's better to shoot the subjects submerged to preserve their shape. For instance, this Roboastra europaea was found during the low tide on the beach and the photo was done without any underwater housing (but with external strobes...) from the surface: http://www.flickr.com/photos/jpsilva1971/6824833932/ Out of the water it looks like a psychedelic blob.

David Kipling Dave and I used a Tic Tac mint container as an impromptu mini aquarium for a Goniodoris castanea on an intertidal fieldtrip earlier in the year ;) http://nachtwinkel-helmond.nl/wp-content/uploads/2012/07/TicTac.jpg I've probably got some pics of the tiny wee thing crawling around inside it - advantage being flat sides.

David Fenwick Snr We take out a number of containers with us on the shore; here it was a case of not seeing the slug because of its small size. A few of my best finds have been quite accidental and seen in images after I've got home. A lot of the time when we find a good rock on the shore we actually submerge it in a pool before taking it out to look at it. On muddy sites we'll take containers to fill with seawater and will look at rocks in the containers in clean water rather than have to wait for the water to clear around the rock.

João Pedro Silva "Seen in images after I've got home" is a familiar occurrence. Even on today's dive. Here are a few dozens: http://www.flickr.com/photos/jpsilva1971/sets/72157625904859297/

David Kipling Only time I've even seen Ancula gibbosa (well, it is small!) is on a picture afterwards.

David Kipling (Nice squirts btw João Pedro!)

David Fenwick Snr Fantastic Joao, glad it happens to others as well. LOL.

David Fenwick Snr Think my best one was accidentally taking a cyst of Myzostoma cirriferum on Antedon bifida http://www.aphotomarine.com/starfish_feather_star_rosy_antedon_bifida.html

Message posted on NE Atlantic Nudibranchs on 13 Feb 2013
René Weterings "Goniodoris castanea, with a tiny little crab as a friend" Eastern Scheldt, The Netherlands Camera: Olympus E-PL2 Housing: Olympus PT-EP03 Port: Compact macro port with 67mm threads Lens: M.ZUIKO DIGITAL ED 60mm F2.8 Macro Wet lens: Subsee +10 Camera settings: f/18 1/180s ISO200 Strobes: Inon Z-240 + Inon D-2000 (both type 2)

Linda Raaphorst Gaaf deze !

Linda Raaphorst Een soort ambtenaar van de burgerlijke stand dat krabbetje

Message posted on Scubashooters.net on 24 Aug 2013
René Weterings "Goniodoris castanea" Found in the Eastern Scheldt in The Netherlands on the 12th of december 2012, at a watertemperature of 3 degrees Celsius and a depth of 5m.

Message posted on NE Atlantic Nudibranchs on 14 Dec 2012
René Weterings "Goniodoris castanea" Eastern Scheldt, The Netherlands, august 18th 2013.

Pascal Van Acker joepie ze zijn er weer

Mieke Noordanus Like it! En zeker joepie dat ze er weer zijn.

Bruce Potter fabulous shot

Gary Cobb Did you get any full body shots of this species? And what was the size? Thanks

João Pedro Silva They usually have very good camouflage here: http://www.flickr.com/photos/49844432@N08/6828079062/

René Weterings Gary Cobb, here is a body shot with on the right top a piece of the eggstring.

René Weterings 4x "Goniodoris castanea" Found on divesite "Zoetersbout" in The Eastern Scheldt in The Netherlands on the 23rd of august 2012.

David Kipling Is that Botrylloides violaceus or B. leachi it's eating? Fab picture!

René Weterings Thank you David! I am not an expert, but I would guess it's Botrylloides violaceus.

Bernard Picton Nice! I can see a grant proposal for investigating whether native predators can stop the invasion of non-natives....

René Weterings Well...fact is that Goniodoris castanea thrives in The Eastern Scheldt at the moment. Practically on every square meter you can find eggs and/or these nudi's, at least at some divesites.

David Kipling Bernard's after his own aquarium to grow a large colony of these Goniodorises so they can be released back into the wild as "natural control"!

Niels Schrieken Nice picture. As far as we know it is botrylloides violaceus

Message posted on NE Atlantic Nudibranchs on 27 Aug 2012
João Pedro Silva Goniodoris castanea com postura Local: Tróia, Portugal Profundidade: intertidal Data: 11-03-2012

Message posted on Nudibranquios on 22 Sep 2013
René Weterings 4x "Goniodoris castanea" Found on divesite "Zoetersbout" in The Eastern Scheldt in The Netherlands on the 23rd of august 2012.

David Kipling Is that Botrylloides violaceus or B. leachi it's eating? Fab picture!

René Weterings Thank you David! I am not an expert, but I would guess it's Botrylloides violaceus.

Bernard Picton Nice! I can see a grant proposal for investigating whether native predators can stop the invasion of non-natives....

René Weterings Well...fact is that Goniodoris castanea thrives in The Eastern Scheldt at the moment. Practically on every square meter you can find eggs and/or these nudi's, at least at some divesites.

David Kipling Bernard's after his own aquarium to grow a large colony of these Goniodorises so they can be released back into the wild as "natural control"!

Niels Schrieken Nice picture. As far as we know it is botrylloides violaceus

Message posted on NE Atlantic Nudibranchs on 27 Aug 2012
Taxonomy
Animalia (Kingdom)
  Mollusca (Phylum)
    Gastropoda (Class)
      Heterobranchia (Subclass)
        Opisthobranchia (Infraclass)
          Nudibranchia (Order)
            Euctenidiacea (Suborder)
              Doridacea (Infraorder)
                Onchidoridoidea (Superfamily)
                  Goniodorididae (Family)
                    Goniodoris (Genus)
                      Goniodoris castanea (Species)
Associated Species