WoRMS note details
Blake (2000, 2017) included Protoaricia in Orbiniinae. Therefore Protoarciinae is a synonym of Orbiniinae, although not formally placed as such by Blake (2000, 2017).
Blake, James A. (2017). Polychaeta Orbiniidae from Antarctica, the Southern Ocean, the Abyssal Pacific Ocean, and off South America. <em>Zootaxa.</em> 4218(1): 1-145 [monograph].
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