Petta is a genus in the polychaete family Pectinariidae.
Systematics There are currently eight recognized species in the genus Petta alissoni - Nogueira, Ribeiro, Carrerette & Hutchings, 2019 Petta assimilis - McIntosh, 1885 Petta brevis - Zhang & Hutchings, 2021 Petta investigatoris - Zhang, Hutchings & Kupriyanova, 2019 Petta pellucida - (Ehlers, 1887) Petta pusilla - Malmgren, 1866 Petta tenuis - Caullery, 1944 Petta williamsonae - Zhang, Hutchings & Kupriyanova, 2019
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