| Scientific Name | Author | English Name |
|---|---|---|
| Falcidens acutargatus | Salvini-Plawen, 1992 | |
| Falcidens aequabilis | Salvini-Plawen, 1972 | |
| Falcidens afanasjevi | (Ivanov, 1986) | |
| Falcidens amiae | Passos, Fassina, Corrêa & Miranda, 2022 | |
| Falcidens caudatus | (Heath, 1918) | |
| Falcidens chiastos | Scheltema, 1989 | |
| Falcidens crossotus | Salvini-Plawen, 1968 | |
| Falcidens gutturosus | (Kowalevsky, 1901) | |
| Falcidens halanychi | Schander, Schletema & Ivanov, 2006 | |
| Falcidens hartmanae | (Schwabl, 1961) | Tailed glistenworm |
| Falcidens hoffmanni | (Stork, 1939) | |
| Falcidens indicus | (Stork, 1941) | |
| Falcidens ingolfensis | Salvini-Plawen, 1971 | |
| Falcidens limifossorides | Salvini-Plawen, 1992 | |
| Falcidens liosquameus | Salvini-Plawen, 1969 | |
| Falcidens lipuros | Scheltema, 1989 | |
| Falcidens longus | Scheltema, 1997 | Slender glistenworm |
| Falcidens loveni | (Nierstrasz, 1902) | |
| Falcidens macracanthus | Scheltema, 1997 | Long-spiculed glistenworm |
| Falcidens macrafrondis | Scheltema, 1989 | |
| Falcidens moskalevi | (Ivanov, 1986) | |
| Falcidens nontargatus | Salvini-Plawen, 1992 | |
| Falcidens normanni | (Nierstrasz, 1902) | |
| Falcidens pellucidus | (Ivanov, 1987) | |
| Falcidens poias | Scheltema, 1995 | |
| Falcidens procerus | Salvini-Plawen, 1986 | |
| Falcidens profundus | Salvini-Plawen, 1971 | |
| Falcidens sagittiferus | Salvini-Plawen, 1968 | |
| Falcidens salviniplaweni | (Ivanov, 1984) | |
| Falcidens sterreri | (Salvini-Plawen, 1967) | |
| Falcidens targatus | Salvini-Plawen, 1986 | |
| Falcidens targotegulatus | Salvini-Plawen, 1992 | |
| Falcidens thorensis | Salvini-Plawen, 1971 | |
| Falcidens vasconiensis | Salvini-Plawen, 1996 | |
| Falcidens wireni | (Nierstrasz, 1902) |