Opheliida References Opheliida polychaete order Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: annelid/ Annotated classification Order Opheliida No prostomial appendages; body with limited number of segments; setae all simple; size, 1 to 10 cm; examples of genera: Ophelia, Polyophthalmus, Scalibregma. Order Capitellida No prostomial appendages; 1 or 2 Read More Order Opheliida No prostomial appendages; body with limited number of segments; setae all simple; size, 1 to 10 cm; examples of genera: Ophelia, Polyophthalmus, Scalibregma. Order Capitellida No prostomial appendages; 1 or 2 Read More