10 messages par Stefan PAV

31/10/2021 Création de sujet : Éponge jaune

Bonjour, serait-ce Clathria compressa? Hexadella pruvoti a également été suggéré, mais a été rejeté en raison de sa faible structure fibreuse.
Merci!
Bien à vous
Stefan

24/10/2021 Création de sujet : Aplidium elegans (adriatic morph)?

Bonne journée! Est-ce la forme adriatique d'Aplidium elegans ?

26/09/2021 Création de sujet : Haliclona fibulata?

Sous une pierre.

26/09/2021 Création de sujet : Clathria compressa?

Sous le trottoir

26/09/2021 Création de sujet : Geodia cydonium?

~30cm, depth: ~4-5m

15/09/2021 Création de sujet : Hemimycale ... mediterranea ou columella?

Yesterday I thought mediterranea, but then I spotted this orange-like shimmer inside the oscules and tended to columella again. It is especially tricky since there are not many pics for comparison.

15/09/2021 Création de sujet : Clathrinidae

Bonjour,
I found those two different specimen under a surplomb in 2 m depth.
Otok Krk, Croatia, northern Adriatic. I don't know what to make of it. The 'web' seems to be spun too tightly for Clathrina?
Thank you for any response!

13/09/2021 Création de sujet : Bispira volutacornis? Or B. mariae?

There seem to be many B. mariae around Krk that look like this specimen, so I filed it under mariae without looking closely. But after enhancing a rather bad picture I started to see too many eyes on the tentacles for Bispira mariae. Or do I imagine them due to the coloration?
Or is it really Bispira volutacornis?

13/09/2021 Création de sujet : Hymedesmiidae? Hemimycale?

5 years ago I identified it as Hemimycale columella without much thought. Started to doubt the ID recently, posted it on iNaturalist, got my doubt confirmed. But I did not find an alternative so far.

13/09/2021 Création de sujet : Stylochus de Kvarner/ Croatia

Size: 1-2cm
Doesn't look quite like S. plessissi ...