Dicyemidae

• Dicyema von Kolliker, 1849
• * Dicyema acciaccatum McConnaughey, 1949
• * Dicyema acheroni McConnaughey, 1949
• * Dicyema acuticephalum Nouvel, 1947 - parasitizes Octopus vulgaris
• * Dicyema aegira McConnaughey & Kritzler, 1952
• * Dicyema akashiense Furuya, 2005
• * Dicyema apalachiensis Short, 1962
• * Dicyema apollyoni Nouvel, 1947
• * Dicyema australis Penchaszadeh, 1969
• * Dicyema awajiense Furuya, 2005
• * Dicyema balanocephalum Furuya, 2006
• * Dicyema banyulensis Furuya & Hochberg, 1999
• * Dicyema benedeni Furuya & Hochberg, 1999
• * Dicyema benthoctopi Hochberg & Short, 1970
• * Dicyema bilobum Couch & Short, 1964
• * Dicyema briarei Short, 1961
• * Dicyema caudatum Bogolepova-Dobrokhotova, 1960
• * Dicyema clavatum Furuya & Koshida, 1992 - parasitizes Octopus minor
• * Dicyema colurum Furuya, 1999 - parasitizes Octopus fangsiao
• * Dicyema dolichocephalum Furuya, 1999 - parasitizes Octopus minor
• * Dicyema erythrum Furuya, 1999 - parasitizes Octopus fangsiao
• * Dicyema ganapatii Kalavati, Narasimhamurti & Suseela, 1984
• * Dicyema hadrum Furuya, 1999 - parasitizes Sepia esculenta
• * Dicyema helocephalum Furuya, 2005
• * Dicyema hypercephalum Short, 1962
• * Dicyema irinoense Furuya, 2005
• * Dicyema japonicum Furuya & Tsuneki, 1992 - parasitizes Octopus vulgaris
• * Dicyema knoxi Short, 1971
• * Dicyema koshidai Furuya & Tsuneki, 2005
• * Dicyema leiocephalum Furuya, 2006
• * Dicyema lycidoeceum Furuya, 1999 - parasitizes Sepia lycidas
• * Dicyema macrocephalum
• * Dicyema madrasensis Kalavati, Narasimhamurti & Suseela, 1984
• * Dicyema maorum Short, 1971
• * Dicyema megalocephalum Nouvel, 1934
• * Dicyema microcephalum Whitman, 1883
• * Dicyema misakiense Nouvel & Nakao, 1938 - parasitizes Octopus vulgaris
• * Dicyema monodi Nouvel, 1934
• * Dicyema moschatum Whitman, 1883
• * Dicyema nouveli Kalavati, Narasimhamurti & Suseela, 1984
• * Dicyema octopusi Kalavati, Narasimhamurti & Suseela, 1984
• * Dicyema oligomerum Bogolepova-Dobrokhotova, 1960
• * Dicyema orientale Nouvel & Nakao, 1938 - parasitizes Sepioteuthis lessoniana
• * Dicyema oxycephalum Furuya, 2009
• * Dicyema paradoxum von Kölliker, 1849
• * Dicyema platycephalum Penchaszadeh, 1968
• * Dicyema rhadinum Furuya, 1999 - parasitizes Sepia esculenta
• * Dicyema robsonellae Short, 1971
• * Dicyema rondeletiolae Nouvel, 1944
• * Dicyema schulzianum
• * Dicyema sepiellae Furuya, 2008
• * Dicyema shimantoense Furuya, 2008 - parasitizes Octopus sasakii
• * Dicyema shorti Furuya, Damian & Hochberg, 2002
• * Dicyema sphaerocephalum Furuya, 2005
• * Dicyema sphyrocephalum Furuya, 1999 - parasitizes Octopus minor
• * Dicyema sullivani McConnaughey, 1949
• * Dicyema tosaense Furuya, 2005
• * Dicyema typoides Short, 1964
• * Dicyema typus van Beneden, 1876
• * Dicyema whitmani Furuya & Hochberg, 1999
• Dicyemennea Whitman, 1883
• * Dicyemennea abasi McConnaughey, 1949
• * Dicyemennea abbreviata McConnaughey, 1949
• * Dicyemennea abelis McConnaughey, 1949
• * Dicyemennea abreida McConnaughey, 1957
• * Dicyemennea adminicula
• * Dicyemennea adscita McConnaughey, 1949
• * Dicyemennea antarcticensis Short & Hochberg, 1970
• * Dicyemennea bathybenthum Furuya & Hochberg, 2002
• * Dicyemennea brevicephala McConnaughey, 1941
• * Dicyemennea brevicephaloides Bogolepova-Dobrokhotova, 1962
• * Dicyemennea californica McConnaughey, 1941
• * Dicyemennea canadensis Furuya, Hochberg & Short, 2002
• * Dicyemennea coromadelensis Kalavati, Narasimhamurti & Suseela, 1978
• * Dicyemennea curta Bogolepova-Dobrokhotova, 1962
• * Dicyemennea discocephalum Hochberg & Short, 1983
• * Dicyemennea dogieli Bogolepova-Dobrokhotova, 1962
• * Dicyemennea dorycephalum Furuya & Hochberg, 2002
• * Dicyemennea eledones
• * Dicyemennea eltanini Short & Powell, 1969
• * Dicyemennea filiformis Bogolepova-Dobrokhotova, 1962
• * Dicyemennea gracile
• * Dicyemennea granularis McConnaughey, 1949
• * Dicyemennea gyrinodes Furuya, 1999 - parasitizes Octopus hongkongensis
• * Dicyemennea kaikouriensis Short & Hochberg, 1969
• * Dicyemennea lameerei Nouvel, 1932
• * Dicyemennea littlei Short & Hochberg, 1970
• * Dicyemennea longinucleata Bogolepova-Dobrokhotova, 1962
• * Dicyemennea marplatensis
• * Dicyemennea mastigoides Furuya, 1999 - parasitizes Sepia esculenta
• * Dicyemennea minabense Furuya, 1999 - parasitizes Sepia esculenta
• * Dicyemennea nouveli McConnaughey, 1959
• * Dicyemennea ophioides Furuya, 1999 - parasitizes Octopus hongkongensis
• * Dicyemennea parva Hoffman, 1965
• * Dicyemennea pileum Furuya, 2008
• * Dicyemennea rossiae Bogolepova-Dobrokhotova, 1962
• * Dicyemennea rostrata Short & Hochberg, 1969
• * Dicyemennea ryukyuense Furuya, 2006
• * Dicyemennea trochocephalum Furuya, 1999 - parasitizes Octopus hongkongensis
• * Dicyemennea umbraculum Furuya, 2009
• Dicyemodeca
• * Dicyemodeca anthinocephalum Furuya, 1999 - parasitizes Octopus dofleini
• * Dicyemodeca deca
• * Dicyemodeca dogieli Bogolepova, 1957
• Dodecadicyema Kalavati & Narasimhamurti, 1979
• * Dodecadicyema loligoi Kalavati & Narasimhamurti, 1980
• Pleodicyema
• * Pleodicyema delamarei Nouvel, 1961
• Pseudicyema Nouvel, 1933
• * Pseudicyema cappacephalum Furuya, 2009
• * Pseudicyema nakaoi Furuya, 1999 - parasitizes Sepia lycidas and Sepia esculenta
• * Pseudicyema truncatum''