Byssus: mollusc attachment threads and the rare textile 'sea‑silk' Byssus Byssus refers to the bundle of silky filaments some bivalves use to anchor themselves and to the rare textile known as sea‑silk, historically prized and now rare and protected.
Mantle (mollusc anatomy) Mantle (mollusc) The mantle is the dorsal body wall of molluscs that encloses the visceral organs, forms the mantle cavity, and in many species secretes the shell and related structures.
