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The shells have an elongated aperture in their first whorl and an inner lip characterised by a number of deep plaits. The family of Volutidae comprises a suite of large shells remarkable for their great beauty and elegance of form. The shell of species such as Melo amphora can grow as large as 50 cm (19.7 inches) in length. [2]
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 have a thin but highly iridescent inner layer of nacre in the part of the shell near the umbos (the pointed end).
The museum's exhibits include shells from all over the world. However, many shells on show in the museum are from Florida, and a substantial number are from Sanibel and Captiva islands. This is because Sanibel Island is one of the best seashell collecting spots in the world (comparable to Jeffreys Bay in Africa and the Sulu Archipelago in the ...
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; Appearance. ... Identification guide to the seashells of South Africa. Volume ...
Seashells of the World. Illustrated by George and Marita Sandstrom. Golden Guide. ISBN 1-58238-148-8. R. Tucker Abbott :Van Nostrand's Standard Catalog of shells, 1964; Abbott, Tucker (1968). Zim, Herbert S (ed.). Seashells of North America, A Guide to Field Identification. Illustrated by George Sandstrom. Golden Field Guides. ISBN 0-307-13657-4.
The term seashell is also applied loosely to mollusk shells that are not of marine origin, for example by people walking the shores of lakes and rivers using the term for the freshwater mollusk shells they encounter. Seashells purchased from tourist shops or dealers may include various freshwater and terrestrial shells as well.
Mollusc shells (especially those formed by marine species) are very durable and outlast the otherwise soft-bodied animals that produce them by a very long time (sometimes thousands of years even without being fossilized). Most shells of marine molluscs fossilize rather easily, and fossil mollusc shells date all the way back to the Cambrian period.
Placunidae, also known as windowpane oysters, windowpane shells, and Capiz shells, are a taxonomic family of saltwater clams, marine bivalve mollusks which are related to oysters and scallops. This family is best known for the shells of the species Placuna placenta , which are translucent, and are commonly used in shellcraft production.