Guynia Duncan, 1872

Diagnosis.

Solitary, ceratoid to scolecoid, free or fixed laterally. Chain of individuals sometimes produced by extra-tentacular budding. Wall epithecal. A row of mural “pores” present in every interseptal space. Pali absent. Columella composed of one twisted ribbon.

Type species.

Guynia annulata Duncan, 1872, by monotypy.