Diptera.info

Posted by pwalter on 13-11-2008 12:51

Hi, sorry for posting something that's definetly not an arthropod, but I couldn't find any info about these things, not a clue even...

The first thing is an about 30 cm diameter ?colony? of something... Not sponge, I think. I tought about calcarean algae, but they shouldn't be this huge. Any suggestions, please?

Was found in Greece this summer, Paralia Katerini.

Edited by pwalter on 13-11-2008 12:52

Posted by pwalter on 20-11-2008 19:57

Thank You, but I don't know what you mean by sponge fungus... There's one living in forests, I think you ment some kind of slime mould? I think it's too big for that and the species that live in seawater are mainly parasites of algae, the Labirinthulomycota and Hyphochytridiomycota.
Best regards, Walter

PS: here's a closer view:

Edited by pwalter on 20-11-2008 20:01

Posted by pwalter on 20-11-2008 20:00

And another thing from the sea (Greece), it was anchored to a rope. First I tought on Tunicate, but couldn't find any species on the net and in books that is black and lives there.

Posted by Tony Irwin on 20-11-2008 23:15

I think those little pink dots in the second picture look rather like eyes - I think this is an egg mass of some sort - fish or molluscs?
The black thing looks a bit like a young seaweed - some sort of brown alga.

Posted by pwalter on 21-11-2008 14:20

Thank You Tony, brown alga seems to be a good idea for me, I'll try to look after the possible species. For the 'egg-mass': I'll give them a closer look, I have parts stored in alcohol. The whole thing was a single mass, but could be torn apart like you can do with a sponge. And it weighed more than 1 kg. So I don't think that any molluscs live there that can produce so much eggs. For fishes, it might be...

Thank You very much for your help with these things:)