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