The family includes the genera:
Colony encrusting or encrusting-erect, orifice subcircular, with wide shallow sinus, Peristome distinct, with proximal raised umbo, and a small circular opening (ascus?) between the umbo and the orifice. Frontal wall uniformly perforate and granulated. Avicularia rare, usually absent. Ovicell hyperstomial, prominent, with imperforate frontal.
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Pacificincola perforata |
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