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Dog Cockle
The dog cockle or European bittersweet (''Glycymeris glycymeris'') is a species of marine clam, a coastal bivalve mollusc of European waters. Despite its common name, it is not closely related to the common cockle. While the English common name "dog cockle" implies an inferior food that might only be suitable for animals, this shellfish is edible and enjoyed in many European countries, although the flesh has a reputation for becoming tough if overcooked. Its name in French (''amande de mer'') and Spanish (''almendra de mar'') means "sea almond", due to its apparently sweet and almond-like flavour."Amande de mer: smooth-shelled shellfish, like a small clam, with a sweet, almost almond flavor.Patricia Wells' French/English Food Glossary Habitat The dog cockle is a burrowing animal, living in shelly gravel on the ocean floor at depths up to 100 m (330 ft). Shell description The shell, which reaches 6.5 cm in length, is thick, and almost circular in outline. The ant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periostracum
The periostracum ( ) is a thin, organic coating (or "skin") that is the outermost layer of the shell of many shelled animals, including molluscs and brachiopods. Among molluscs, it is primarily seen in snails and clams, i.e. in gastropods and bivalves, but it is also found in cephalopods such as ''Allonautilus scrobiculatus''. The periostracum is an integral part of the shell, and it forms as the shell forms, along with the other shell layers. The periostracum is used to protect the organism from corrosion. The periostracum is visible as the outer layer of the shell of many molluscan species from terrestrial, freshwater, and marine habitats, and may be seen in land snails, river mussels, and other kinds of freshwater bivalves, as well as in many kinds of marine shelled molluscs. The word ''periostracum'' means "around the shell", meaning that the periostracum is wrapped around what is usually the more calcareous part of the shell. Technically, the calcareous part of the shel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Cockle
The common cockle (''Cerastoderma edule'') is a species of edible saltwater clam, a marine bivalve mollusc in the family Cardiidae, the cockles. It is found in waters off Europe, from Iceland in the north, south into waters off western Africa as far south as Senegal. The ribbed oval shells can reach across and are white, yellowish or brown in colour. The common cockle is harvested commercially and eaten in much of its range. Taxonomy and naming The common cockle was one of the many invertebrate species originally described by Carl Linnaeus in the landmark 1758 10th edition of ''Systema Naturae'', where it was given its old binomial name ''Cardium edule''. The species name is derived from the Latin adjective ''ĕdūlis'' "edible". Italian naturalist Giuseppe Saverio Poli erected the genus ''Cerastoderma'' in 1795, making the common cockle the type species as ''Cerastoderma edule''. The genus name is derived from the Ancient Greek words ''keras'' "horn" and ''derma'' "skin". For ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycymeris
''Glycymeris'', common name the bittersweet clams, is a genus of saltwater clams, marine bivalve molluscs in the family Glycymerididae.MolluscaBase eds. (2022). MolluscaBase. Glycymeris da Costa, 1778. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=138035 on 2022-04-19 Etymology The genus name comes from the Ancient Greek word ''glykymaris'' (perhaps from ''Glykys'' (sweet) and ''Meris'' (part)), a word which is only recorded once in Greek literature. Fossil records These clams are very common as fossils, from the Cretaceous period in the Valanginian age (between 140.2 ± 3.0 mya and 136.4 ± 2.0 mya). Fossil shells of these molluscs can be found all over the world. Genus ''Glycymeris'' includes about 100 extinct species. Description The shells are generally biconvex, with equal valves round in outline, and slightly longer than wide. Their size varies from medium to large. The external ligament lacks transv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pallial Line
The pallial line is a mark (a line) on the interior of each valve of the shell of a bivalve mollusk. This line shows where all of the mantle A mantle is a piece of clothing, a type of cloak. Several other meanings are derived from that. Mantle may refer to: *Mantle (clothing), a cloak-like garment worn mainly by women as fashionable outerwear **Mantle (vesture), an Eastern Orthodox ve ... muscles were attached in life. In clams with two adductor muscles the pallial line usually joins the marks known as adductor muscle scars, which are where the adductor muscles attach. The position of the pallial line is often quite clearly visible as a shiny line on the slightly more dull interior surface of the bivalve shell.Huber, Markus (2010). Compendium of Bivalves. A Full-color Guide to 3'300 of the World's Marine Bivalves. A Status on Bivalvia after 250 Years of Research. Hackenheim: ConchBooks. pp. 901 pp. + CD. , at p. 57 References Mollusc anatomy {{bivalve-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
