Protodrilida
polychaete order
Quick Summary
Protodrilida is a group of minute, primitive marine worms that are considered a separate order within the class Polychaeta. These worms lack prostomial appendages and have reduced or absent parapodia and septa. They are characterized by a ciliated epidermis and a small prostomium, with or without appendages. While some classifications group them with other primitive polychaetes, they are distinct in their morphology and simple body structure.1
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