CrellidaeCrellidae is a family of marine demosponges in the order Poecilosclerida.CharacteristicsGrowth forms are varied and include branching, club-shaped, massive and encrusting. Identification of members of this family is based on microscopic examination of the spicules in their skeleton. The choanosomal skeleton is composed of tornotes while the ectosomal skeleton consists of a tangential crust of spined styles or oxeas. The microscleres are mostly arcuate isochelae.GeneraAnisocrella Topsent, 1927Crella Gray, 1867Crellastrina Topsent, 1927Crellomima Rezvoi, 1925Spirorhabdia Topsent, 1918