Bolosoma Ijima (1904)

Castello-Branco, Cristiana, Collins, Allen G. & Hajdu, Eduardo, 2020, A collection of hexactinellids (Porifera) from the deep South Atlantic and North Pacific: new genus, new species and new records, PeerJ 8, pp. e 9431-e 9431 : 10

Genus Bolosoma Ijima (1904)

Diagnosis

Body is fungiform, pedunculate, basiphytous with a more-or-less everted atrial cavity. Choanosomal spicules predominantly diactins, rarely hexactins and pentactins too. The spicules of the peduncle are diactins fused into a rigid skeleton by synapticular junctions. Dermalia and atrialia are hexactins, rarely pentactins. Microscleres are anchorate and toothed discohexasters, discasters, hemidiscohexasters, discohexactins, and derivatives of the latter to amphidiscs ( Tabachnick, 2002 modi fi ed by Reiswig & Kelly (2011)).