Pectinatellidae

Pectinatellidae is one of seven families of bryozoans belonging to the belong to the class Phylactolaemata. Like most bryozoans, they are colonial organisms, and akin to all Phylactolaemates, they are exclusively freshwater organisms and lack a calcareous exterior, instead forming gelatinous colonies.

To date, there is only one known species of Pectinatellidae: Pectinatella magnifica. They are found globally across North America, Europe, and Asia.