Dactylocalycidae Gray, 1867

Moser, Julia, Moraes, Fernando C., Castello-Branco, Cristiana, Pequeno, Carolline B. & Muricy, Guilherme, 2022, Manned submersible dives reveal a singular assemblage of Hexactinellida (Porifera) off the Amazon River mouth, Northern Brazil, Zootaxa 5105 (1), pp. 105-130 : 113

Family Dactylocalycidae Gray, 1867

Diagnosis. Dictyonal Hexactinellida with rigid walls composed of branching systems of tubules. Channelization as cavaedia between branching tubules; tubule walls not channelized. Primary framework (tubule walls) is not euretoid in construction; dictyonal polyradial nodes result from tip-to-node and tip-to-tip fusion of dictyonalia. Body form as funnel or cup. Surface spicules as rough club-tipped pentactins and hexactins; sceptrules and uncinates absent. Microscleres include combinations of discohexasters, tylohexasters, hemioxyhexasters to oxyhexactins, and onychohexasters ( Dohrmann et al. 2017).