| Nominal Species (n = 78) | Present allocation (n = 76) | Ref. |
|---|---|---|
| Dicyemennea abasi McConnaughey, 1949 | Dicyemennea abasi | 19 |
| Dicyemennea abbreviata McConnaughey, 1949 | Dicyemennea abbreviata | 19 |
| Dicyemennea abelis McConnaughey, 1949 | Dicyemennea abelis | 19 |
| Dicyemennea abreida McConnaughey, 1957 | Dicyemennea abreida | 19 |
| Dicyema acciacatum McConnaughey, 1949 | Dicyema acciacatum | 19 |
| Dicyema acheroni McConnaughey, 1949 | Dicyema acheroni | 19 |
| Dicyema acuticephalum Nouvel, 1947 | Dicyema acuticephalum | 19 |
| Dicyemennea adscita McConnaughey, 1949 | Dicyemennea adscita | 19 |
| Dicyema aegira McConnaughey & Kritzler, 1952 | Dicyema aegira | 19 |
| Dicyemennea antarcticensis Short & Hochberg, 1970 | Dicyemennea antarcticensis | 419 |
| Dicyemodeca anthinocephalum Furuya, 1999 | Dicyemodeca anthinocephalum | 19 |
| Dicyema apalachiensis Short, 1961 | Dicyema apalachiensis | 19 |
| Dicyema apollyoni Nouvel, 1947 | Dicyema apollyoni | 19 |
| Dicyema australis Penschaszadeh, 1968 | Dicyema australis | 19 |
| Dicyema balamuthi McConnaughey, 1949 | Dicyema balamuthi | 19 |
| Dicyema balanocephalum Furuya, 2006 | Dicyema balanocephalum | 91355 |
| Dicyema banyulensis Furuya & Hochberg, 1999 | Dicyema banyulensis | 19 |
| Dicyemennea bathybenthum Furuya & Hochberg, 2002 | Dicyemennea bathybenthum | 19 |
| Dicyema benedeni Furuya & Hochberg, 1999 | Dicyema benedeni | 19 |
| Dicyema bilobum Couch & Short, 1964 | Dicyema bilobum | 19 |
| Dicyemennea brevicephala McConnaughey, 1941 | Dicyemennea brevicephala | 19 |
| Dicyemennea brevicephaloides Bogolepova, 1962 | Dicyemennea brevicephaloides | 19 |
| Dicyema briarei Short, 1961 | Dicyema briarei | 19 |
| Dicyemennea californica McConnaughey, 1941 | Dicyemennea californica | 19 |
| Dicyemennea canadensis Furuya, Hochberg & Short, 2002 | Dicyemennea canadensis | 19 |
| Dicyema caudatum Bogolepova, 1960 | Dicyema caudatum | 19 |
| Dicyema clavatum Furuya, Tsuneki & Koshida, 1992 | Dicyema clavatum | 19 |
| Dicyema codonocephalum Furuya, 2008 | Dicyema codonocephalum | 91356 |
| Dicyema colurum Furuya, 1999 | Dicyema colurum | 19 |
| Dicyemennea curta Bogolepova, 1962 | Dicyemennea curta | 19 |
| Pleodicyema delamarei Nouvel, 1961 | Pleodicyema delamarei | 19 |
| Dicyemennea discocephala Hochberg & Short, 1983 | Dicyemennea discocephalum | 1534 |
| Dicyemennea discocephalum Hochberg & Short, 1983 | Dicyemennea discocephalum | 419 |
| Dicyemennea dogieli Bogolepova, 1962 | Dicyemennea dogieli | 19 |
| Dicyema dolichocephalum Furuya, 1999 | Dicyema dolichocephalum | 19 |
| Dicyemennea dorycephalum Furuya & Hochberg, 2002 | Dicyemennea dorycephalum | 19 |
| Dicyemennea eltanini Short & Powell, 1969 | Dicyemennea eltanini | 19 |
| Dicyema erythrum Furuya, 1999 | Dicyema erythrum | 19 |
| Dicyemennea filiformis Bogolepova, 1962 | Dicyemennea filiformis | 19 |
| Dicyemennea granularis McConnaughey, 1941 | Dicyemennea granularis | 19 |
| Dicyemennea gyrinodes Furuya, 1999 | Dicyemennea gyrinodes | 19 |
| Dicyemennea gyrinum Furuya, 1999 | Dicyemennea gyrinodes | 1534 |
| Dicyema hadrum Furuya, 1999 | Dicyema hadrum | 19 |
| Dicyema hypercephalum Short, 1961 | Dicyema hypercephalum | 19 |
| Dicyema japonicum Furuya, Tsuneki & Koshida | Dicyema japonicum | 19 |
| Dicyemennea lameerei Nouvel, 1932 | Dicyemennea lameerei | 19 |
| Dicyema leiocephalum Furuya, 2006 | Dicyema leiocephalum | 91355 |
| Dicyemennea loninucleata Bogolepova, 1962 | Dicyemennea loninucleata | 19 |
| Dicyema lycidoeceum Furuya, 1999 | Dicyema lycidoeceum | 19 |
| Dicyemennea mastigoides Furuya, 1999 | Dicyemennea mastigoides | 19 |
| Dicyema megalocephalum Nouvel, 1934 | Dicyema megalocephalum | 19 |
| Dicyema microcephalum Whitman, 1883 | Dicyema microcephalum | 19 |
| Dicyemennea minabense Furuya, 1999 | Dicyemennea minabense | 19 |
| Dicyema misakiense Nouvel & Nakao, 1938 | Dicyema misakiense | 19 |
| Dicyema monodi Nouvel, 1934 | Dicyema monodi | 19 |
| Dicyema moschatum Whitman, 1883 | Dicyema moschatum | 19 |
| Pseudicyema nakaoi Furuya, 1999 | Pseudicyema nakaoi | 19 |
| Dicyemennea nouveli McConnaughey, 1959 | Dicyemennea nouveli | 19 |
| Dicyema oligomerum Bogolepova, 1960 | Dicyema oligomerum | 19 |
| Dicyemennea ophioides Furuya, 1999 | Dicyemennea ophioides | 19 |
| Dicyema orientale Nouvel & Nakao, 1938 | Dicyema orientale | 19 |
| Dicyema paradoxum von Kölliker, 1849 | Dicyema paradoxum | 19 |
| Dicyemennea pileum Furuya, 2008 | Dicyemennea pileum | 91356 |
| Dicyema platycephalum Penschaszadeh, 1969 | Dicyema platycephalum | 19 |
| Dicyema rhadinum Furuya, 1999 | Dicyema rhadinum | 19 |
| Dicyema rondeletiolae Nouvel, 1944 | Dicyema rondeletiolae | 19 |
| Dicyemennea rossiae Bogolepova, 1962 | Dicyemennea rossiae | 19 |
| Dicyemodeca sceptrum Wheeler, 1897 | Dicyemodeca sceptrum | 19 |
| Dicyema schulzianum van Beneden, 1876 | Dicyema schulzianum | 19 |
| Dicyema shimantoense Furuya, 2008 | Dicyema shimantoense | 91356 |
| Dicyema shorti Furuya, Damian & Hochberg, 2002 | Dicyema shorti | 19 |
| Dicyema sphyrocephalum Furuya, 1999 | Dicyema sphyrocephalum | 19 |
| Dicyema sullivani McConnaughey, 1949 | Dicyema sullivani | 19 |
| Dicyemennea trochocephalum Furuya, 1999 | Dicyemennea trochocephalum | 19 |
| Dicyema truncatum Whitman, 1883 | Dicyema truncatum | 19 |
| Dicyema typoides Short, 1961 | Dicyema typoides | 19 |
| Dicyema typus van Beneden, 1876 | Dicyema typus | 19 |
| Dicyema whitmani Furuya & Hochberg, 1999 | Dicyema whitmani | 19 |