MONOMYARIA Meaning and
Definition
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Monomyaria refers to a taxonomic division or subclass within the class Bivalvia, which encompasses a diverse group of mollusks commonly known as bivalves or clams. The term "Monomyaria" is derived from the Greek words "mono" meaning "one" and "mya" meaning "muscle," describing the characteristic feature of these organisms: a single large and powerful adductor muscle used for closing their two-part shells.
Members of the Monomyaria subclass are characterized by having a symmetrical, laterally compressed body enclosed within two calcareous shells or valves. These shells are hinged together dorsally, enabling the bivalves to open or shut their shells to control their feeding, movements, or protection from predators. Unlike the Dimyaria subclass, Monomyaria bivalves lack a functional anterior adductor muscle, resulting in a more limited range of movement.
This subclass encompasses a remarkable range of bivalve species found in both marine and freshwater environments worldwide. Monomyaria bivalves exhibit a wide array of morphologies, sizes, and adaptations, reflecting their diverse ecological niches. They play important roles in aquatic ecosystems, serving as filter feeders, contributing to sediment stabilization, and acting as a valuable food source for other organisms.
Common examples of Monomyaria bivalves include various species of clams, cockles, and mussels. Human societies have also extensively utilized these organisms for food, pearls, and in some cases, as indicator species for environmental monitoring due to their sensitivity to pollutants.
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A term employed to distinguish those bivalves whose shells are closed by a single adductor muscle, such as the oysters and clam-shells.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for MONOMYARIA
Etymology of MONOMYARIA
The word "Monomyaria" combines two Greek roots: "mono" meaning "one" and "myaria" meaning "muscle" or "shellfish".
In the field of zoology and taxonomy, "Monomyaria" is used to categorize a class of bivalve mollusks, specifically those that have only one adductor muscle. The adductor muscle is responsible for opening and closing the shells of the mollusk. The term was coined based on the specific anatomical characteristic of these organisms having a single adductor muscle.
