The Synallactidae are a family of sea cucumbers, part of the order Synallactida.
Genera Allopatides Koehler & Vaney, 1905 Amphigymnas Walsh, 1891 Bathyplotes Östergren, 1896 Capheira Ludwig, 1893 Dendrothuria Koehler & Vaney, 1905 Galatheathuria Hansen & Madsen, 1956 Paelopatides Théel, 1886 Pseudothuria Koehler & Vaney, 1905 Scotothuria Hansen, 1978 Synallactes Ludwig, 1894
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