Genus Clathrina Gray, 1867

Diagnosis: “ Calcinea in which the cormus comprises anastomosed tubes. A stalk may be present. The skeleton contains regular (equiangular and equiradiate) and/or parasagittal triactines, to which diactines and tripods may be added. Asconoid aquiferous system” (Klautau et al. 2013).

Type species: Grantia clathrus Schmidt, 1864 by original designation.