Calyx is 'n genus van sponsdiere uit die familie van die Demospongiae (gewone sponse). Calyx arcuarius (Topsent, 1913) Calyx clavata (Burton, 1928) Calyx imperialis (Dendy, 1924) Calyx infundibulum (Pulitzer-Finali, 1993) Calyx kerguelensis (Hentschel, 1914) Calyx nicaeensis (Risso, 1826) Calyx nyaliensis (Pulitzer-Finali, 1993) Calyx podatypa (De Laubenfels, 1934) Calyx santa (De Laubenfels, 1936) Calyx tufa (Ridley & Dendy, 1886) Calyx shackletoni (Goodwin, Brewin & Brickle, 2012)