Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater and even terrestrial species.

Nov 23, 2024 · Mollusks can be segregated into seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda. These classes are distinguished by, among other criteria, the presence and types of shells they possess.

Nov 11, 2024 · Mollusk, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body. Along with the insects and vertebrates, it is one of the most diverse groups in the animal kingdom, with nearly 100,000 (possibly

You are likely to come across a whole lot of specialized words in describing the molluscs. Look up the glossary for their meanings. Classifying molluscs : Based on the structure of Radula; Based on shell structure; Here is a commonly used classification for molluscs. Phylum Mollusca is classified into seven classes;

MolluscaBase is a taxonomically oriented database that aims to provide an authoritative, permanently updated account of all molluscan species – marine, freshwater, and terrestrial, extant and fossil, and across all classes.

Apr 26, 2021 · Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not only in size and in anatomical structure, but also in behaviour and in habitat.

Oct 1, 2024 · The taxonomic classification of Mollusca is divided into seven or eight classes, including two extinct classes. Notable among these are cephalopods like squids, cuttlefish, and octopuses, recognized for their advanced neurological development.

Jul 31, 2022 · Phylum Mollusca is the predominant phylum in marine environments. It is estimated that 23 percent of all known marine species are mollusks; there are over 75,000 described species, making them the second most diverse phylum of animals.

Phylum Mollusca is a major taxonomic group in the kingdom Animalia, comprising over 85,000 recognized species, with many more awaiting discovery. The name “Mollusca” originates from the Latin word “mollis,” meaning soft, reflecting the typically soft-bodied nature of these organisms.

Taxonomic hierarchy of Phylum Mollusca Linnaeus, 1758. Display of synonyms, alternative taxonomic positions, references, number of subtaxa, and phylogenetic/bibliographic position can be switched on/off. Subtaxa can be ordered by name or phylogenetic/bibliographic position.