Crella is een geslacht van sponsdieren uit de klasse van de Demospongiae (gewone sponzen).
Soorten Crella (Crella) aurantiaca Bertolino, Calcinai & Pansini, 2009 Crella (Crella) elegans (Schmidt, 1862) Crella (Crella) mollior Topsent, 1925 Crella (Crella) papillosa (Schmidt, 1870) Crella (Crella) tubifex (Hentschel, 1914) Crella (Grayella) beglingerae van Soest, 2009 Crella (Grayella) brasiliensis Moraes, 2011 Crella (Grayella) carnosa (Topsent, 1904) Crella (Grayella) compressa (Carter, 1886) Crella (Grayella) cyathophora Carter, 1869 Crella (Grayella) erecta Lévi, 1963 Crella (Grayella) papillata (Lévi, 1958) Crella (Grayella) polymastia (Thiele, 1903) Crella (Grayella) pulvinar (Schmidt, 1868) Crella (Pytheas) affinis (Brøndsted, 1924) Crella (Pytheas) akraleitae (Brøndsted, 1932) Crella (Pytheas) alba (Vacelet, 1969) Crella (Pytheas) atra (Topsent, 1890) Crella (Pytheas) basispinosa Burton, 1931 Crella (Pytheas) chelifera van Soest, 1984 Crella (Pytheas) crassa (Hentschel, 1914) Crella (Pytheas) digitifera (Lévi, 1959) Crella (Pytheas) donsi Burton, 1931 Crella (Pytheas) fristedti (Dendy, 1924) Crella (Pytheas) fusifera Sarà, 1969 Crella (Pytheas) jaegerskioeldi Alander, 1937 Crella (Pytheas) novaezealandiae (Bergquist & Fromont, 1988) Crella (Pytheas) plana Picton & Goodwin, 2007 Crella (Pytheas) schottlaenderi (Arndt, 1913) Crella (Pytheas) sigmata Topsent, 1925 Crella (Pytheas) stylifera Hentschel, 1914 Crella (Pytheas) ula (de Laubenfels, 1950) Crella (Yvesia) acanthosclera (Lévi & Lévi, 1983) Crella (Yvesia) aceratospiculum (Carter, 1880) Crella (Yvesia) albula (Bowerbank, 1866) Crella (Yvesia) commensalis Whitelegge, 1906 Crella (Yvesia) dispar (Topsent, 1927) Crella (Yvesia) fallax (Topsent, 1890) Crella (Yvesia) gelida (Lundbeck, 1910) Crella (Yvesia) gracilis (Alander, 1942) Crella (Yvesia) guernei (Topsent, 1890) Crella (Yvesia) hanseni (Topsent, 1890) Crella (Yvesia) linguifera (Topsent, 1890) Crella (Yvesia) mammillata (Arnesen, 1903) Crella (Yvesia) nodulosa Sarà, 1959 Crella (Yvesia) pertusa (Topsent, 1890) Crella (Yvesia) pyrula (Carter, 1876) Crella (Yvesia) richardi (Topsent, 1890) Crella (Yvesia) ridleyi (Topsent, 1890) Crella (Yvesia) rosea (Topsent, 1892) Crella (Yvesia) spinulata (Hentschel, 1911) Crella (Yvesia) topsenti (Babiç, 1922) Crella caespes (Ehlers, 1870) Crella gerzensteini (Swartschevsky, 1906) Crella incrustans (Carter, 1885) Crella rubiginosa (Schmidt, 1862) Crella shimonii Pulitzer-Finali, 1993 Crella triplex (Koltun, 1970)