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A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer usually created by an animal or organism that lives in the sea. Most seashells are made by mollusks, such as snails, clams, and oysters to protect their soft insides. [1] Empty seashells are often found washed up on beaches by beachcombers.
Tick shell Nassarius kraussianus (Dunker, R.W., 1846) (Namaqualand to Mozambique) [2] Plough shells Annulated plough shell Bullia annulata Lamarck, 1816 (Cape Columbine to Mozambique) [2] Bullia mozambicensis E. A. Smith, 1878 (KwaZulu-Natal south coast to Mozambique) [2] Pleated plough shell Bullia natalensis Krauss, C.F., 1848 (Transkei to ...
1742 drawing of shells of the money cowrie, Monetaria moneta Cowrie shells The shells of cowries are usually smooth and shiny and more or less egg-shaped. The round side of the shell is called the Dorsal Face, whereas the flat under side is called the Ventral Face, which shows a long, narrow, slit-like opening (), which is often toothed at the edges.
Five views of a shell of Janthina janthina. The snail's shell is reverse countershaded, because of its upside-down position in the water column. There is a light purple shade on the spire of the shell, and a darker purple on the ventral side. [9] The animal has a large head on a very flexible neck.
Paphies australis or pipi (from the Māori language) is a bivalve mollusc of the family Mesodesmatidae, endemic to New Zealand. [1]The pipi is a shellfish with a solid white, elongated symmetrical shell with the apex at the middle.
Most species of wentletrap are white, and have a porcelain-like appearance. They are notable for their intricately geometric shell architecture, and the shells of the larger species are prized by collectors. The more or less turret-shaped shell consists of tightly-wound (sometimes loosely coiled), convex whorls, which create a high, conical spiral.
Pecten maximus, common names the great scallop, king scallop, St James shell or escallop, is a northeast Atlantic species of scallop, an edible saltwater clam, a marine bivalve mollusc in the family Pectinidae. This is the type species of the genus.