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Siphonia multioculata ?
Geplaatst: 21 jun 2018, 20:24
door fifbrindacier
Hi everybody,
In the senonian of Touraine, i've found those two specimen of silicized sponges.
I thought they were siphoniae multioculatae.
What is your opinion ?
Cheers,
Sophie
Re: Siphonia multioculata ?
Geplaatst: 23 jun 2018, 16:03
door Spongebob
Hi Sophie,
It were Michelin (in 1840-1847) and Courtiller who (in 1864) introduced numerous new species within the genus
Siphonia. At that time there was an enormous exaggeration in the description of new species;
Siphonia multicloaca is one of these....
I think your specimen is a nice
Siphonia cf. decipiens. I regard the presence of two osculi as a variation or atypical ecotype.
Cordialement, Tom
PS: Moret(1925) did not include this species in his 'Spongiaires siliceux'. According to his work
Siphonia pyriformis var. incrassata is the most likely possibility.
Your specimen would be a variation of a variation then
[Bewerkt door Spongebob op 23-06-2018 om 15:21 NL]
Re: Siphonia multioculata ?
Geplaatst: 31 jul 2018, 22:34
door fifbrindacier
Do you mean Siphonia pyriformis var. incrassata cf. decipiens ?
[Edited by fifbrindacier on 31-07-2018 at 21:47 GMT +1]