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Tonna galea, commonly known as the giant tun, is a species of marine gastropod mollusc in the family Tonnidae (also known as the tun shells). This very large sea snail or tun snail is found in the North Atlantic Ocean as far as the coast of West Africa, in the Mediterranean Sea and the Caribbean Sea.
The Registry of World Record Size Shells is a conchological work listing the largest (and in some cases smallest) verified shell specimens of various marine molluscan taxa.A successor to the earlier World Size Records of Robert J. L. Wagner and R. Tucker Abbott, it has been published on a semi-regular basis since 1997, changing ownership and publisher a number of times.
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.
The nautilus has the extremely rare ability to withstand being brought to the surface from its deep natural habitat without suffering any apparent damage from the experience. Whereas fish or crustaceans brought up from such depths inevitably arrive dead, a nautilus will be unfazed despite the pressure change of as much as 80 standard ...
Knitted glove made of sea silk, from Taranto, Italy, probably from the late 19th century Pinna nobilis shell and byssus The extreme fineness of the byssus thread. Sea silk is an extremely fine, rare, and valuable fabric that is made from the long silky filaments or byssus secreted by a gland in the foot of pen shells (in particular Pinna nobilis). [1]
The shell of this mollusc species has special significance to shell collectors because it was once regarded as the rarest shell in the world. For about two centuries between its initial discovery and the discovery of its habitat in 1969, specimens were valued in the thousands of U.S. dollars and generally only owned by museums and wealthy private collectors.
Many Epitonium species have shells that are very attractive and quite interesting in their structure. However this species is particularly striking, partly because it is very large compared with the great majority of other species within the genus, but also because the whorls themselves do not touch and so the shell is held together only by the ...
Entemnotrochus adansonianus is endemic to the West Indies and Caribbean region. [4] A very few of these rare slit shells that reside at depths between 150 and 240 metres have been dredged and (crabbed examples) trapped. [5]