Scalibregma

Scalibregma is a genus of polychaete worms belonging to the class Polychaeta, phylum Annelida. Polychaetes are marine worms characterized by their segmented bodies, and most species possess parapodia, which are paired, lobelike outgrowths on each body segment that bear tiny bristles called setae.1

Scalibregma species are free-moving forms. Like other polychaetes, their diet can vary, consisting of minute aquatic plants and animals, or they can be purely carnivorous. Reproduction typically involves separate sexes, with sperm and eggs released into the water for external fertilization, leading to free-swimming larvae. Polychaetes play a significant role in marine ecosystems by turning over bottom sediments.1