Siphonodictyon Bergquist, 1965

Pacheco, Cristian, Carballo, José Luis, Cortés, Jorge, Segovia, Johanna & Trejo, Alejandra, 2018, Excavating sponges from the Pacific of Central America, descriptions and a faunistic record, Zootaxa 4370 (5), pp. 451-491 : 483

Genus Siphonodictyon Bergquist, 1965

Synonymy. Acca Johnson, 1899 , preoccupied by Acca Hübner, 1819 (Lepidoptera) (following Soest 2011 in Soest et al. 2016). Aka Laubenfels, 1936 , preoccupied by Aka White, 1879 (Fulgoromorpha) (following Schönberg & Soest 2012 in Soest et al. 2016). Siphonodictyon Bergquist, 1965 .

Diagnosis. Excavating sponges in papillate or fistulate morphology, former with porous excavation, latter usually with larger cavities. Choanosomal skeleton unordered or forming sinuous bands of spicule fibres. Densely anastomosing fibres in fistules. Spicules curved oxeas, no microscleres. Commonly mucoid (adapted from Desqueyroux-Faúndez & Valentine 2002).