California (USA): intertidal. Vancouver Island (Canada): 4.5-13.5 m. Batangas and Mindoro (Philippines): intertidal to shallow subtidal (<5 m).
Blake, James A.; Woodwick, Keith H. (1971). A review of the genus <i>Boccardia</i> Carazzi (Polychaeta Spionidae) with description of two new species. <em>Bulletin of the Southern California Academy of Sciences.</em> 70(1): 31-42.available online athttps://biodiversitylibrary.org/page/34304499 Available for editors [request]
Williams, Jason D. (2001). <i>Polydora</i> and related genera associated with hermit crabs from the Indo-West Pacific (Polychaeta: Spionidae), with descriptions of two new species and a second polydorid egg predator of hermit crabs. <em>Pacific Science.</em> 55(4): 429-465.available online athttp://doi.org/10.1353/psc.2001.0037 Available for editors [request]
Sato-Okoshi, Waka; Okoshi, Kenji. (1997). Survey of the genera <i>Polydora</i>, <i>Boccardiella</i> and <i>Boccardia</i> (Polychaeta, Spionidae) in Barkley Sound (Vancouver Island, Canada), with special reference to boring activity. <em>Bulletin of Marine Science.</em> 60(2): 482-493.available online athttps://www.ingentaconnect.com/content/umrsmas/bullmar/1997/00000060/00000002/art00027 Available for editors [request]