Synallactida Explained

Synallactida is a rankless clade of sea cucumbers, but is referred to as an order.^[1] Taxa within Synallactida were previously classified in an order called Aspidochirotida, which was determined to be polyphyletic in 2017.^[2]

List of families

Synallactida includes over 130 species in three extant families and two extinct genera:^[3]

• Deimatidae Théel, 1882 – 3 genera
• Stichopodidae Haeckel, 1896 – 9 genera
• Synallactidae Ludwig, 1894 – 12 genera
• Genus †Collbatothuria Smith & Gallemí, 1991
• Genus †Tribrachiodemas Reich, 2010

Notes and References

1. Paulay, Gustav . 2017 . Synallactida . 1036229 . 2017-11-29.
2. Paulay, Gustav . 2017 . Aspidochirotida . 123109 . 2017-11-29 .
3. Web site: WoRMS - World Register of Marine Species. 2020-12-15. www.marinespecies.org.