Ircinia is een geslacht van sponsdieren uit de klasse van de Demospongiae (gewone sponzen).
Soorten Ircinia akaroa Cook & Bergquist, 1999 Ircinia anomala (Dendy, 1905) Ircinia arbuscula (Hyatt, 1877) Ircinia aruensis (Hentschel, 1912) Ircinia arundinacea (Carter, 1880) Ircinia atrovirens (Keller, 1889) Ircinia aucklandensis Cook & Bergquist, 1999 Ircinia cactiformis (Rao, 1941) Ircinia cactus (Lendenfeld, 1889) Ircinia caliculata (Lendenfeld, 1888) Ircinia campana (Lamarck, 1814) Ircinia chevreuxi (Topsent, 1894) Ircinia clavata (Thiele, 1905) Ircinia collectrix (Poléjaeff, 1884) Ircinia condensa (Topsent, 1894) Ircinia conulosa (Ridley, 1884) Ircinia cuspidata (Wilson, 1902) Ircinia cylindracea Vacelet, Vasseur & Lévi, 1976 Ircinia dendroides (Schmidt, 1862) Ircinia dendroides (Polejaeff, 1884) Ircinia dickinsoni (de Laubenfels, 1936) Ircinia digitata (Topsent, 1894) Ircinia echinata (Keller, 1889) Ircinia ectofibrosa (George & Wilson, 1919) Ircinia favosa (Lieberkühn, 1859) Ircinia felix (Duchassaing & Michelotti, 1864) Ircinia filamentosa (Lamarck, 1814) Ircinia fistulosa Cook & Bergquist, 1999 Ircinia flagelliformis (Carter, 1886) Ircinia friabilis (Polejaeff, 1884) Ircinia fusca (Carter, 1880) Ircinia hummelincki van Soest, 1978 Ircinia intertexta (Hyatt, 1877) Ircinia irregularis (Poléjaeff, 1884) Ircinia lendenfeldi de Laubenfels, 1948 Ircinia marginalis (Duchassaing & Michelotti, 1864) Ircinia microconulosa Pulitzer-Finali, 1982 Ircinia mutans (Wilson, 1925) Ircinia novaezealandiae Bergquist, 1961 Ircinia oligoceras (Poléjaeff, 1884) Ircinia oros (Schmidt, 1864) Ircinia pauciarenaria Boury-Esnault, 1973 Ircinia paucifilamentosa Vacelet, 1961 Ircinia paupera (Thiele, 1905) Ircinia pellita (Rao, 1941) Ircinia pilosa Pulitzer-Finali, 1982 Ircinia pinna (Hentschel, 1912) Ircinia procumbens (Poléjaeff, 1884) Ircinia ramodigitata (Burton, 1934) Ircinia ramosa (Keller, 1889) Ircinia rectilinea (Hyatt, 1877) Ircinia repens Sandes & Pinheiro, 2014 Ircinia reteplana (Topsent, 1923) Ircinia retidermata Pulitzer-Finali & Pronzato, 1981 Ircinia rubra (Lendenfeld, 1889) Ircinia schulzei (Dendy, 1905) Ircinia selaginea (Lamarck, 1814) Ircinia sergipana Sandes & Pinheiro, 2014 Ircinia solida (Esper, 1794) Ircinia solida (Carter, 1885) Ircinia spiculosa (Hentschel, 1912) Ircinia stipitata (Topsent, 1894) Ircinia strobilina (Lamarck, 1816) Ircinia subaspera Cook & Bergquist, 1999 Ircinia tintinnabula (Duchassaing & Michelotti, 1864) Ircinia tristis (Duchassaing & Michelotti, 1864) Ircinia truncata (Topsent, 1894) Ircinia tuberosa (Dendy, 1905) Ircinia turrita Cook & Bergquist, 1999 Ircinia undulans Cook & Bergquist, 1999 Ircinia vallata (Dendy, 1887) Ircinia variabilis (Schmidt, 1862) Ircinia verrucosa (Ferrer-Hernandez, 1914) Ircinia vestibulata (Szymanski, 1904) Ircinia wistarii Wilkinson, 1978