Info
The sponge in the picture was taken during a dive in Mauritius.
Alexander_KTN provided the following information.
I would have guessed a Clathria species.
As far as I know, Clathria (Microciona) atrasanguinea occurs on Mauritius, otherwise possibly C. venosa, but I don't know its distribution.
However, some other genera/species also have this “venous” appearance (e.g. species from Chalinula, Ircinia, Halisarca etc.) because the branching has a function.
Synonyms:
Clathria atrasanguinea (Bowerbank, 1862) · alternative representation (subgenus assignment)
Microciona atrasanguinea Bowerbank, 1862 · unaccepted (genus transfer)
Plumohalichondria atrasanguinea (Bowerbank, 1862) · unaccepted
Alexander_KTN provided the following information.
I would have guessed a Clathria species.
As far as I know, Clathria (Microciona) atrasanguinea occurs on Mauritius, otherwise possibly C. venosa, but I don't know its distribution.
However, some other genera/species also have this “venous” appearance (e.g. species from Chalinula, Ircinia, Halisarca etc.) because the branching has a function.
Synonyms:
Clathria atrasanguinea (Bowerbank, 1862) · alternative representation (subgenus assignment)
Microciona atrasanguinea Bowerbank, 1862 · unaccepted (genus transfer)
Plumohalichondria atrasanguinea (Bowerbank, 1862) · unaccepted