byssuses造句

• Sea silk is a fine fabric woven from the byssus threads of bivalves, particularly the pen shell ( " Pinna nobilis " ).
• The byssus threads from this " Pinna " species can be up to 6 cm in length and have historically been made into cloth.
• They then migrate to hard surfaces ( usually old oyster shells ) where they attach by secreting a " glue " like substance from their byssus gland.
• When young they are attached to the substrate by a byssus but mature animals are capable of swimming by the opening and rapid closing of the valves.
• The sakos covered the head entirely like a sack or bag; it was made of various materials, such as silk, byssus, and wool.
• During metamorphosis, the veliger sheds its velum and, depending on species, may secrete an attachment structure called a byssus that anchors it to the substratum.
• They are not closely related to true oysters ( family Ostreidae ), however they do cement themselves to rocks, rather than attach themselves by a byssus.
• In marine mussels, the foot is smaller, tongue-like in shape, with a groove on the ventral surface which is continuous with the byssus pit.
• Larvae stay in the water column for the next four to seven weeks before dissipating to the ocean floor, where they attach themselves to objects through byssus threads.
• The shells of bivalves in this family are fragile and have a long and triangular shape, and in life the pointed end is anchored in sediment using a byssus.
• The shells of most of these animals are T-shaped, with the hinge along the top of the T, and with the byssus emerging from the hinge.
• Many species of mussels secrete byssus threads to anchor themselves to surfaces, with Families including the Arcidae, Mytilidae, Anomiidae, Pinnidae, Pectinidae, Dreissenidae, and Unionidae.
• These byssus or filaments ( which can be up to 6 cm long ) are spun and, when treated with lemon juice, turn a golden colour, which never fades.
• It lives on hard substrates, often attached with byssus, for instance in mussel beds or nestling among kelp holdfasts, or hiding in rock crevices and also boring itself into soft rocks.
• These hairnets were frequently made of gold threads, sometimes of silk, or the Elean " byssus ", and probably of other materials, which are not mentioned by ancient writers.
• The byssus, which is made of keratin, quinone-tanned proteins ( polyphenolic proteins ), and other proteins, is spewed into this chamber in liquid form, and bubbles into a sticky foam.
• A rare luxury cloth with a beautiful golden sheen, known as sea silk, was made from the long silky filaments or byssus produced by " Pinna nobilis ", a large Mediterranean clam.
• As the larval stage of " Pecten maximus " is relatively long, up to a month, then the potential for dispersal is quite high, even smaller adults can use the byssus to drift too.
• Behaviorally, cockles live buried in sediment, whereas scallops are either free-living and will swim in the sea water to avoid a predator, or in some cases they live attached by a byssus to a substrate.
• I have a long-time Swiss friend who is probably the world's top expert on the very rare and beautiful fabric known in English as Sea silk made from the byssus or fibres produced by certain seashells.