Sternaspida
polychaete order
Quick Summary
Sternaspida is an order of polychaete worms, which are marine annelids. Polychaetes are characterized by segmented bodies, and most have parapodia (fleshy outgrowths) on each segment that bear bristles called setae. Sternaspida are sedentary worms, typically measuring around 3 cm in length. They are distinguished by their short, thick anterior setae and a posterior shield on their ventral side that bears radiating setae and anal gills. The order includes the genus Sternaspis.12
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