Genus
Leptosynapta
Leptosynapta albicans. Photo: (c) Ken-ichi Ueda, some rights reserved (CC BY)
Synaptidae is a family of sea cucumbers that have no tube feet, tentacle ampullae, retractor muscles, respiratory trees, or cuvierian tubules. They also lack radial canals of the water-vascular system, with only the circumoral ring present.
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