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Home » Sipuncula » Animalia » Sipuncula » Sipunculidea » Golfingiiformes » Phascolionidae » Phascolion » Phascolion (Isomya) » Phascolion (Isomya) hedraeum Selenka & De Man, 1883 -
Sipuncula
Phascolion (Isomya) hedraeum Selenka & De Man, 1883
Nomenclature
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Genus: PhascolionSubgenus: Phascolion (Isomya)
Species:
Phascolion (Isomya) hedraeum Selenka & De Man, 1883
SUMMARY
This species has round-shaped holdfast papillae with chitinized border. Hooks are spinelike. Internally both retractor muscles are the same size and are attached at the end of the trunk.The ventral retractor muscle usually has two origins.