Maas, 1905
Calycopsidae primarily with 4 radial canals that branch repeatedly at various levels; without centripetal canals; with transversely folded gonads.
Sibogita geometrica
Maas, 1905
Calycopsidae primarily with 4 radial canals that branch repeatedly at various levels; without centripetal canals; with transversely folded gonads.
Sibogita geometrica
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