There are more than 50,000 species in this phylum. gastropod: Class of mollusks that use their foot to crawl, i.e. The mollusk life cycle includes one or more juvenile, larval stages. No cephalopods -- with the exception of species belonging to the taxonomic subclass Nautiloidea -- have external shells. Some species live quite high in the intertidal zone and are exposed to the air and light for long periods. Cephalopods have a more developed nervous system than other mollusks. The cookie is used to store the user consent for the cookies in the category "Performance". Citing for websites is different from citing from books, magazines and periodicals. This website uses cookies to improve your experience while you navigate through the website. var d = new Date();
What is meant by the competitive environment? The gastropods include snails, slugs, conchs, periwinkles and sea slugs. 9 Are mollusks invertebrates or vertebrates? The shell is produced by the underlying mantle; it grows along the outer margins. PDF Functional Morphology of Gastropods and Bivalves To use this website, please enable javascript in your browser. Animals in class Gastropoda (stomach foot) include well-known mollusks like snails, slugs, conchs, sea hares, and sea butterflies. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The word cephalopod means "head-footed" and describes the body structure of the invertebrates. Class Aplacophora includes worm-like animals with no shell and a rudimentary body structure. { "28.3A:_Superphylum_Lophotrochozoa" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.3B:_Phylum_Platyhelminthes" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.3C:_Phylum_Rotifera" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.3D:_Phylum_Nemertea" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.3E:_Phylum_Mollusca" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.3F:_Classification_of_Phylum_Mollusca" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.3G:_Phylum_Annelida" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { "28.01:_Phylum_Porifera" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.02:_Phylum_Cnidaria" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.03:_Superphylum_Lophotrochozoa" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.04:_Superphylum_Ecdysozoa" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28.05:_Superphylum_Deuterostomia" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, [ "article:topic", "authorname:boundless", "showtoc:no", "license:ccbysa", "columns:two", "cssprint:dense", "licenseversion:40" ], https://bio.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fbio.libretexts.org%2FBookshelves%2FIntroductory_and_General_Biology%2FBook%253A_General_Biology_(Boundless)%2F28%253A_Invertebrates%2F28.03%253A_Superphylum_Lophotrochozoa%2F28.3F%253A_Classification_of_Phylum_Mollusca, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), status page at https://status.libretexts.org, Differentiate among the classes in the phylum mollusca.
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