Erylus is 'n genus van sponsdiere uit die klas van die Demospongiae (gewone sponse). E. aleuticus (Lehnert, Stone & Heimler, 2006) E. alleni (De Laubenfels, 1934) E. almirante (Vieira, Cosme & Hajdu, 2010) E. amissus (Adams & Hooper, 2001) E. amorphus (Burton, 1926) E. amphiastera (Wintermann-Kilian & Kilian, 1984) E. aspidodiscus (Topsent, 1928) E. bahamensis (Pulitzer-Finali, 1986) E. burtoni (Lévi & Lévi, 1983) E. caliculatus (Lendenfeld, 1910) E. cantabricus (Ferrer-Hernández, 1912) E. carteri (Sollas, 1888) E. circus (Adams & Hooper, 2001) E. citrus (Adams & Hooper, 2001) E. corneus (Boury-Esnault, 1973) E. cornutus (Wilson, 1925) E. corsicus (Pulitzer-Finali, 1983) E. cylindriger (Ridley, 1884) E. decumbens (Lindgren, 1897) E. deficiens (Topsent, 1927) E. diminutus (Mothes, Lerner & Silva, 1999) E. discastera (Dickinson, 1945)