Phragmatopoma californica (Fewkes 1889)

These gregarious worms make their tubes by cementing grains of sand.

Description: English: A colony of sandcastle worm (Phragmatopoma californica) tubes in the laboratory of Russell Stewart, University of Utah. Date: November 2008. Source: University of Utah. Author: Fred Hayes for the University of Utah. Permission(Reusing this file): : This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page. The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by an Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2009110110023383. If you have questions about the archived correspondence, please use the OTRS noticeboard. Ticket link: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2009110110023383.

Description: English: A colony of sandcastle worms (Phragmatopoma californica) underwater. Source: http://seanet.stanford.edu/Polychaeta/phragmat_cal580.jpg from the website http://seanet.stanford.edu/Polychaeta/index.html#Phragmatopoma_calfiornica (watermark "© James Watanabe" removed). Author: James M. Watanabe, Hopkins Marine Station, Stanford University. Permission(Reusing this file): : This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page. The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by an Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2009110210069252. If you have questions about the archived correspondence, please use the OTRS noticeboard. Ticket link: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2009110210069252.