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Desmacidon fruticosum
(Montagu, 1818)
Keith Hiscock Desmacidon fruticosum (a sponge) has always fascinated me since seeing castle-like growths of it in the Isles of Scilly in the late 1960s. Is it long-lived and slow growing or what? I believe this pic. is of D. fruticosum (Pencra Head, Lizard, Cornwall, about 30m depth) and it seems to have overgrown Tubularia indivisa (suggesting fast growth). The collected specimen slimed profusely but I will have a look at the spicules next time in the lab. Meanwhile, what you think about the id.?Chris Wood Also saw it on the same dive around Nemertesia antennina
Message posted on Seasearch Identifications on 16 Jun 2013
Keith Hiscock Desmacidon fruticosum (a sponge) has always fascinated me since seeing castle-like growths of it in the Isles of Scilly in the late 1960s. Is it long-lived and slow growing or what? I believe this pic. is of D. fruticosum (Pencra Head, Lizard, Cornwall, about 30m depth) and it seems to have overgrown Tubularia indivisa (suggesting fast growth). The collected specimen slimed profusely but I will have a look at the spicules next time in the lab. Meanwhile, what you think about the id.?Message posted on Seasearch Identifications on 16 Jun 2013