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Seashells washed up on the beach in Valencia, Spain; nearly all are single valves of bivalve mollusks, mostly of Mactra corallina Hand-picked molluscan seashells (bivalves and gastropods) from the beach at Clacton on Sea in England A group of seashells, mostly bivalves in the family Pholadidae Mixed shells on a beach in Venezuela Hermit crabs inhabiting marine gastropod shells that lived in ...
These are seashells, the shells of various marine mollusks including both gastropod and bivalves. Each one was chosen to represent a maritime state, based on the fact that the species occurs in that state and was considered suitable to represent the state, either because of the species' commercial importance as a local seafood item, or because ...
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. The narrower end of the egg-shaped cowrie shell is the anterior end ...
Murex is a genus of medium to large sized predatory tropical sea snails.These are carnivorous marine gastropod molluscs in the family Muricidae, commonly called "murexes" or "rock snails".
The name derives from the Italian word for 'seashell', conchiglia. The Italian word conchiglie and the English word conch share the same Greek root in the form of κοχύλι (kochýli), meaning 'shell'. [2]
The shell is coiled, aragonitic, [22] nacreous and pressure-resistant, imploding at a depth of about 800 m (2,600 ft). The nautilus shell is composed of two layers: a matte white outer layer with dark orange stripes, [23] and a striking white iridescent inner layer. The innermost portion of the shell is a pearlescent blue-gray.
Variety of Mollusc shells (gastropods: land snail shells and seashells). Closed and open shells of a marine bivalve, Petricola pholadiformis. A bivalve shell is composed of two hinged valves which are joined by a ligament. Four views of a shell of the land snail Arianta arbustorum The giant clam (Tridacna gigas) is the largest extant species of ...
The Shell Grotto is an ornate subterranean passageway shell grotto in Margate, Kent, England. Almost all the surface area of the walls and roof is covered in mosaics created entirely of seashells , totalling about 2,000 square feet (190 m 2 ) of mosaic, or 4.6 million shells.