Eubryinae

Eubryinae is a subfamily of bryozoans, an invertebrate phylum known commonly as moss animals. In many classifications, Eubryinae is placed within the order Cheilostomatida of the class Gymnolaemata, and it is named after the type genus Eubryina. The subfamily includes several genera that form colonial, often calcified, encrusting or branching structures on submerged substrates.

Morphology and biology typical of Eubryinae include colonies composed of interconnected zooids. Each zooid houses a lophophore, a crown of tentacles used for filter feeding particles from seawater. The calcareous skeleton provides support and protection for the feeding zooids. In some genera within the subfamily, specialized zooids such as avicularia may occur, serving defensive or cleaning roles, while other genera show different degrees of specialization.

Distribution and habitat of Eubryinae species are largely marine, with a broad geographic range. Members are found in various oceanic regions, from shallow coastal zones to deeper continental shelf environments, depending on the genus and species. Ecologically, bryozoans in this group contribute to habitat complexity by forming encrusting or erect structures that can influence small-scale community composition.

Taxonomy and phylogeny within Cheilostomatida have been revised as new data emerge. The exact composition and rank of Eubryinae can vary among authorities, and molecular studies continue to refine relationships within the group. Fossil records of calcified Eubryinae provide insight into the evolutionary history of cheilostomes and their past ecological roles.

See also: Bryozoa, Cheilostomatida, Eubryina.