Syllid polychaete, planktonic phase

syllid cb

Syllid polychaete, planktonic phase

 

Location: North Inlet, Georgetown, SC

Syllid polychaetes have complex life cycles that vary among species. Mature syllids enter the plankton and brood their eggs. When they enter the plankton, the worms undergo a metamorphosis. The specimen shown is in a transitional stage with clearly differentiated body regions. This is  probably the reproductive adult phase of the syllid polychaete worm Myrianida, formerly known as Autolytus.