Tharybidae Sars, 1902
Undinella aculeata Andronov, 2002
Undinella acuta Vaupel Klein, 1971
Undinella altera Grice & Hülsemann, 1970
Undinella brevipes Farran, 1908
Undinella compacta Grice & Hülsemann, 1970
Undinella frontalis (Tanaka, 1937)
Undinella gricei Wheeler, 1970
Undinella hampsoni Grice & Hülsemann, 1970
Undinella hispidus (Grice & Hulsemann, 1967)
Undinella messinensis (Claus, 1863)
Undinella oblonga G. O. Sars, 1900
Undinella simplex Wolfenden
Undinella spinifer Tanaka, 1960
Undinella stirni Grice, 1971
Undinella strini Grice, 1971
