Bivalvia - Wikipedia As a group, bivalves have no head and lack some typical molluscan organs such as the radula and the odontophore Their gills have evolved into ctenidia, specialised organs for feeding and breathing
Bivalves - Types, Examples, Characteristics, Anatomy, Diet, Habitat Bivalves are a group of freshwater and marine mollusks with bilaterally symmetric and laterally compressed bodies encased in a characteristic two-part shell They belong to the class Bivalvia, a term coined by Linnaeus (1758) from two Latin words, bis (two) and valvae (leaves of a door)
Bivalvia | INFORMATION | Animal Diversity Web - ADW Also known as pelecypods, the approximately 15,000 species of this taxon are found in marine and freshwater habitats throughout the world A bivalve is characterized by possessing two shells secreted by a mantle that extends in a sheet on either side of the body
The Bivalvia - University of California Museum of Paleontology The second most diverse group of molluscs behind gastropods, bivalves are one of the most important members of most marine and freshwater ecosystems In fact, there are well over 10,000 described species of bivalve, found from the deepest depths of the oceans, to the streams in your backyard
Bivalvia - an overview | ScienceDirect Topics Bivalvia is defined as a class within the phylum Mollusca that includes well-known invertebrates such as mussels, cockles, oysters, and scallops, characterized by their two-part shells and diverse habitats ranging from deep sea to freshwater
Class Bivalvia - Digital Atlas of Ancient Life Phylum Mollusca, Class Bivalvia Common names of representatives: clams, scallops, oysters, mussels Habitat (s): marine (salt water), freshwater (lakes, rivers, and streams) Feeding type (s): mostly suspension feeders; some deposit feeders and carnivores Geological range: Cambrian to today
What Are Bivalved Animals and How Do They Live? The class Bivalvia represents a diverse group of aquatic mollusks characterized by two hinged, usually symmetrical shells, or valves, that completely enclose the organism’s soft body