Allman, 1878
Ptychogastriidae with tentacles in clusters, some with adhesive disks; manubrium with lateral lobes; with eight mesenterial partitions; gonads on manubrial lobes or on radial canals adjacent to manubrial lobes.
Ptychogastria polaris
Allman, 1878
Ptychogastriidae with tentacles in clusters, some with adhesive disks; manubrium with lateral lobes; with eight mesenterial partitions; gonads on manubrial lobes or on radial canals adjacent to manubrial lobes.
Ptychogastria polaris
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