Bergia sp. 'catenularis' is an undescribed zoantharian (order Zoantharia) tentatively assigned to the genus Bergia, characterized by chain-like or catenulate colony growth in tropical reef environments. Zoantharians are soft-bodied colonial anthozoans closely related to corallimorpharians and scleractinian corals, forming major components of tropical reef communities. Members of this lineage may produce palytoxin or related compounds as potent chemical defenses. Genomic data have been generated for this species and are available in public databases, enabling comparative studies of cnidarian evolution and ecology.