Collothecidae Harring, 1913
Collotheca algicola (Hudson, 1886)
Collotheca ambigua (Hudson, 1883)
Collotheca annulata (Hood, 1888)
Collotheca atrochoides (Wierzejski, 1893)
Collotheca balatonica Varga, 1936
Collotheca bilfingeri Berzin, 1951
Collotheca bulbosa Berzin, 1951
Collotheca calva (Hudson, 1885)
Collotheca campanulata (Dobie, 1849)
Collotheca cornuta (Dobie, 1849)
Collotheca coronetta (Cubitt, 1869)
Collotheca crateriformis Offord, 1934
Collotheca cucullata (Hood, 1894)
Collotheca discophora (Skorikov, 1903)
Collotheca edentata (Collins, 1872)
Collotheca edmondsoni Berzin, 1951
Collotheca epizootica (Monard, 1922)
Collotheca evansonii (Anderson & Shephard, 1892)
Collotheca ferox (Penard, 1914)
Collotheca gossei (Hood, 1892)
Collotheca hepatabrachia (Schoch, 1869)
Collotheca heptabrachiata (Schoch, 1869)
Collotheca heptabranchiata (Schoch, 1869)
Collotheca hoodi (Hudson, 1883)
Collotheca judayi Edmondson, 1940
Collotheca lettevalli Berzin, 1976
Collotheca libera (Zacharias, 1894)
Collotheca minuta (Milne, 1905)
Collotheca monoceros (Zacharias, 1912)
Collotheca moselii (Milne, 1905)
Collotheca mutabilis (Hudson, 1885)
Collotheca ornata (Ehrenberg, 1832)
Collotheca paradoxa (Pennard, 1914)
Collotheca pelagica (Rousselet, 1893)
Collotheca polyphema Harring, 1914
Collotheca quadrilobata (Hood, 1892)
Collotheca quadrinodosa Summerfield-Wright, 1961
Collotheca rasmae Berzin, 1951
Collotheca riverai Vilaclara & Sládecek, 1989
Collotheca sessilis (Milne, 1905)
Collotheca spinata (Hood, 1893)
Collotheca stephanochaeta Edmondson, 1936
Collotheca tenera Edmondson, 1939
Collotheca tenuilobata (Anderson, 1889)
Collotheca thunmarki Berzin, 1951
Collotheca torquilobata (Thorpe, 1891)
Collotheca trifidlobata (Pittock, 1895)
Collotheca triloba (Collins, 1872)
Collotheca trilobata (Collins, 1872)
Collotheca undulata Sládecek, 1968
Collotheca vargae Nogrady, 1976
Collotheca vargai Nogrady, 1976
Collotheca wiszniewskii Varga, 1938
