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         Mollusca:     more books (100)
  1. Mollusca ... [ V.1 ] [ 1908-1921 ] by William Thomas Blanford, 2009-08-10
  2. Mollusca ... [ V.4 ] [ 1908-1921 ] by William Thomas Blanford, 2009-08-10
  3. Mollusca ... [ V.2 ] [ 1908-1921 ] by William Thomas Blanford, 2009-08-10
  4. Mollusca ... [ V.3 ] [ 1908-1921 ] by William Thomas Blanford, 2009-08-10
  5. Phylogeny and Evolution of the Mollusca
  6. Mollusca II, Volume 6A, Microscopic Anatomy of Invertebrates
  7. A Catalog of Recent Mollusca from All Parts of the World by Webb, Walter Freeman, 2009-05-20
  8. The Mollusca, Volume 7: Reproduction
  9. The Biology of the Mollusca, (Pure & Applied Biology Monographs) by R. D. Purchon, 1976-10
  10. The Genera of Recent Mollusca: Arranged According to Their Organization by Henry Adams, Arthur Adams, 2010-03-05
  11. A Monograph of the Terrestrial Mollusca Inhabiting the United States: With Illustrations of All the Species [1866-68 ] by George W. (George Washington) Tryon, 2009-09-22
  12. The Freshwater Snails (Mollusca: Gastropoda) of New York State (SAS Technical Report) by Eileen H. Jokinen, 1992-06
  13. PLEISTOCENE MOLLUSCA OF OHIO part 3 by Aurele La Rocque, 1968-01-01
  14. Fresh-Water Invertebrates of the United States: Protozoa to Mollusca by Robert William Pennak, 1953

1. The Mollusca
mollusca is one of the most diverse groups of animals on the planet, with at least 50000 living species (and more likely around 200000).
http://www.ucmp.berkeley.edu/taxa/inverts/mollusca/mollusca.php
"...the resurrection call aroused another Saurian from his long sleep."
HOME
SEARCH GLOSSARY ... Lophotrochozoa The Mollusca
Sea slugs, squid, snails, and scallops An introduction
A cuttlefish, a coleoid cephalopod, moves primarily by undulating its body fins.
Mollusca is one of the most diverse groups of animals on the planet, with at least 50,000 living species (and more likely around 200,000). It includes such familiar organisms as snails, octopuses, squid, clams, scallops, oysters, and chitons. Mollusca also includes some lesser known groups like the monoplacophorans , a group once thought to be extinct for millions of years until one was found in 1952 in the deep ocean off the coast of Costa Rica. Molluscs are a clade of organisms that all have soft bodies which typically have a "head" and a "foot" region. Often their bodies are covered by a hard exoskeleton, as in the shells of snails and clams or the plates of chitons. A part of almost every ecosystem in the world, molluscs are extremely important members of many ecological communities. They range in distribution from terrestrial mountain tops to the hot vents and cold seeps of the deep sea, and range in size from 20-meter-long giant squid to microscopic aplacophorans , a millimeter or less in length, that live between sand grains.

2. Mollusca - Wikipedia, The Free Encyclopedia
The molluscs (British spelling) or mollusks (American spelling) are members of the very large and diverse phylum of invertebrate animals known as mollusca.
http://en.wikipedia.org/wiki/Mollusk
Mollusca
From Wikipedia, the free encyclopedia
(Redirected from Mollusk Jump to: navigation search Molluscs
Fossil range: Ediacaran or Cambrian - Recent
Caribbean Reef Squid
Sepioteuthis sepioidea Scientific classification Kingdom: Animalia
Phylum: Mollusca
Linnaeus
Classes Aplacophora
Bellerophontida
...
Tentaculita
The molluscs British spelling) or mollusks American spelling) are members of the very large and diverse phylum of invertebrate animals known as Mollusca . There are some 112,000 species within this phylum. The scientific study of molluscs is known as malacology The word mollusc comes from the French mollusque , which originated from the Latin molluscus , meaning thin-shelled, from mollis , soft. Molluscs range from minute snails and clams ( micromollusks ) to large organisms such as squid cuttlefish and octopus , which are among the most neurologically-advanced invertebrates There are a wide variety of molluscs which are valued by humans as seafood or for their decorative shells . The edible species include many kinds of clams snails squid and octopuses The vast majority of molluscs live in marine environments, and many of them are found intertidally, in the shallow subtidal and on the continental shelf. Species of octopus and squid live throughout the ocean depths and some species of clam and limpet live in the abyssal depths of the oceans around hot vents.

3. Mollusca
Information from the Tree of Life Project about mollusk systematics with references and links.
http://www.tolweb.org/Mollusca
Temporary Page
Mollusca
Snails, clams, mussels, squids, octopi, chitons, and tusk shells
This tree diagram shows the relationships between several groups of organisms. The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right. You can click on the root to travel down the Tree of Life all the way to the root of all Life, and you can click on the names of descendent subgroups to travel up the Tree of Life all the way to individual species. For more information on ToL tree formatting, please see

4. Dichotomous Key/Mollusca - Wikibooks, Collection Of Open-content Textbooks
Retrieved from http//en.wikibooks.org/wiki/Dichotomous_Key/mollusca . Subject Dichotomous Key. Views. Module Discussion Edit this page History
http://en.wikibooks.org/wiki/Dichotomous_Key:Mollusca
Dichotomous Key/Mollusca
From Wikibooks, the open-content textbooks collection
Dichotomous Key (Redirected from Dichotomous Key:Mollusca Jump to: navigation search Dichotomous Key : Mollusca Kingdom: Animalia Phylum: Mollusca Information related to Mollusca Wikipedia Wikispecies Wikicommons Parent key: Animalia Phyla Mollusca Key: Mollusca Mollusca
Contents
edit
Animalia keys Subkingdom Agnotozoa Phyla Acoelomorpha Cnidaria Ctenophora Myxozoa ... Rhombozoa Superphylum:Deuterostomia Chaetognatha Chordata Echinodermata Hemichordata Superphylum:Ecdysozoa Arthropoda Kinorhyncha Loricifera Nematoda ... Tardigrada Superphylum:Lophotrochozoa Annelida Brachiopoda Ectoprocta Entoprocta ... Sipuncula Superphylum:Platyzoa Acanthocephala Cycliophora Gastrotricha Gnathostomulida ... Rotifera

5. Phylum Mollusca
Phylum mollusca Mollusks. After reviewing this section, the student should be able to . http//animaldiversity.ummz.umich.edu/mollusca/bivalvia.html
http://www.infusion.allconet.org/webquest/PhylumMollusca.html
Phylum Mollusca:
Mollusks
After reviewing this section, the student should be able to
determine the identifying physiological characteristics of Mollusks, identify body supply systems,
and discuss the major classes of Mollusks: class Bivalvia, class Gastropoda, and class Cephalopoda.
The mollusks constitute one of the largest phyla of animals, both in numbers of living species (at least 47,000, and perhaps many more) and in numbers of individuals.
A significant characteristic of mollusks is their possession of a coelom , a fluid-filled cavity that develops within the mesoderm. The coelom not only functions as a hydrostatic skeleton but also provides space within which the internal organs can be suspended by the mesenteries.
All mollusks have a soft body (their name is derived from the Latin word mollus , meaning "soft"), which is generally protected by a hard, calcium-
containing shell. In some forms however, the shell has been lost in the course of evolution, as in slugs and octopuses, or greatly reduced in size and internalized, as in squids. Structurally, mollusks are quite distinct from all other animals. However, all modern mollusks have the same fundamental body plan. There are three distinct body zones: a

6. ADW: Mollusca: Classification
Information about mollusks from the Animal Diversity Web.
http://animaldiversity.ummz.umich.edu/site/accounts/information/Mollusca.html
Overview News Technology Conditions of Use ... Home Kingdom Animalia Phylum Mollusca
Phylum Mollusca
(mollusks)

What do these icons mean?
The icons tell you what features are available for that taxon. Information Pictures Specimens Sounds Selecting an icon will take you directly to that feature. Scientific names for Aves taxonomy (family and below) are from The Howard and Moore Complete Checklist of the Birds of the World

7. An Advanced Introduction To The Molluscsa (Molluscs)
The Phylum mollusca (an Introduction, for Highschool level students, and all others . Now Let s Take a More Detailed Look at The Phylum mollusca
http://www.manandmollusc.net/advanced_introduction/mollusca_101_intro.html

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. If you just want one section printed out, go to the specific class section that you want(see individual class sections listed at the bottom of this page).
The Phylum Mollusca
(an Introduction, for High-school level students, and all others interested!!) By Avril Bourquin
Science Editing by Ross Mayhew
May, 2000 Note: Glossary and separate page links are in blue and underlined. You may have to use your back button to navigate back to article when in the glossary or in external web sites or pages.. All of the Taxonomy in the Advanced Article is being updated for in regards to structure and picture content. Thank you for your patience Early Beginnings: The time is now about 600 million years ago and the first molluscs have made their appearance on our world. About 100 million years later, during the Ordovician period, at least six of the seven classes of molluscs represented today were present. Many of these first molluscs were but simple, worm-like animals, having segments similar to what we find in annelid worms and arthropods. These first molluscs crawled about the primeval seas, probing for and eating microscopic bits of food. The great landmass of Pangaea slowly deposits dissolved salts and other chemicals into the ocean. The first primitive molluscs in these oceans now digest these chemicals and begin to use the nutrients to build themselves protective shelters (shells) against their hostile environment. As Pangaea breaks apart around 200 million years ago, the world's great continents slowly migrate, due to plate tectonics, and we begin to recognize the world continents as they are today.

8. Mollusca
The organisms in the phylum mollusca are characterized by having three main body areas a headfoot (sensory and locomotion structures), a visceral mass
http://www.esu.edu/~milewski/intro_biol_two/lab__11_mollusca/Mollusca.html

Kingdom Animalia
PHYLUM MOLLUSCA - triploblastic eucoelomate
INTRODUCTION
Evolutionarily, the molluscs apparently derive from the platyhelminthes. They are classified as triploblastic eucoelomate animals, as are all phyla remaining to be examined. Most molluscs are bilaterally symmetrical and have well-defined circulatory, respiratory, excretory, and digestive systems.
The molluscs are a large group, second only to arthropods in number of species. The name "mollusc" is derived from the Latin molluscus ("soft"), indicating that the molluscs are soft bodied animals. The group includes the snails, bivalves, chitons, squid, octopuses, and others. In some forms, the soft bodies are protected by a calcareous shell.
The organisms in the phylum Mollusca are characterized by having three main body areas: a head-foot (sensory and locomotion structures), a visceral mass (excretory, digestive, and circulatory structures), and a mantle (which secretes the shell). The gills, which function in respiration, are located between the visceral mass and the mantle.
Representatives of the following classes will be studied in this exercise:
    Class Polyplacophora - the chitons
    Class Gastropoda - snails, slugs

9. M30.htm
Tylodina fungina , class Gastropoda, phylum mollusca, modified from McFarland, The phylum mollusca also includes lesser known forms such as the chitons
http://www.meer.org/M30.htm
MEER home Marine biology home Table of Contents Index ... Links
Phylum Mollusca

Tylodina
fungina class Gastropoda, phylum Mollusca, modified from McFarland, 1966. The molluscs rival the arthropods in their diversity of body forms and sizes, as well as their ecological success. The phylum also provides some of the most familiar animals, such as snails clams mussels squids , and octopus (which, like the arthropods , are well known because they're good to eat). The phylum Mollusca also includes lesser known forms such as the chitons tusk shells, solenogasters , among others. Approximately 50,000 species of Molluscs have been described, and because of the shelled forms they have left a rich fossil record. However, the earliest molluscs probably arose in the Precambrian , and nothing is known about what they were like.
Systematic summary for the phylum Mollusca
  • Class Gastropoda ( snails, sea slugs)
  • Class Pelecypoda (=Bivalvia: clams, mussels, oysters, scallops)
  • Class Cephalopoda (squids, octopus, nautilus, cuttlefish)
  • Class Aplacophora
  • Class Monoplacophora
  • Class Polyplacophora (chitons)
  • Class Scaphopoda (tusk shells)
  • Class Caudofoveata
CLASSES OF MOLLUSCS Class Gastropoda

Hermissenda
crassicornis Nudibranch (sea slug),class

10. MOLLUSCA
Translate this page Bienvenido a mollusca, una página pionera de la Malacología española en Internet, con la que hemos querido llenar parte del vacío existente en nuestro país,
http://www.geocities.com/malacologia/

11. Aquatic Mollusca Of Illinois
Online field guide to freshwater bivalves and gastropods.
http://www.inhs.uiuc.edu/cbd/ilspecies/mollusksplist.html
AQUATIC MOLLUSCA OF ILLINOIS
Class Bivalvia
Order Unionoida - Freshwater Mussels (79 species) Family Margaritiferidae Cumberlandia monodonta (Say, 1829) - Spectaclecase SE Family Unionidae Subfamily Anodontinae (12 species) Alasmidonta marginata Say, 1818 - Elktoe
Alasmidonta viridis (Rafinesque, 1820) - Slippershell ST
Pyganodon grandis (Say, 1829) - Giant Floater
Utterbackia imbecillis (Say, 1829) - Paper Pondshell
Anodonta suborbiculata Say, 1831 - Flat Floater
Anodontoides ferussacianus (Lea, 1834) - Cylindrical Papershell
Arcidens confragosus (Say, 1829) - Rock Pocketbook
Lasmigona complanata (Barnes, 1823) - White Heelsplitter
Lasmigona compressa (Lea, 1829) - Creek Heelsplitter
Lasmigona costata (Rafinesque, 1820) - Flutedshell
Simpsonaias ambigua (Say, 1825) - Salamander Mussel SE Strophitus undulatus (Say, 1817) - Creeper Subfamily Ambleminae (25 species) Amblema plicata (Say, 1817) - Threeridge Cyclonaias tuberculata (Rafinesque, 1820) - Purple Wartyback ST Elliptio crassidens (Lamarck, 1819) - Elephantear ST Elliptio dilatata (Rafinesque, 1820) -

12. Phylum Mollusca
inky.gif (11190 bytes) Phylum mollusca Squid Dissection Pix; Phylum mollusca. (Off site); The Cephalopod Home Page (cool). Octoplay.
http://cas.bellarmine.edu/tietjen/images/phylum_mollusca.htm
Phylum Mollusca
  • Phylum Mollusca Videos Squid Dissection Pix Cool Cephalopod Vids
    Open and closed circulation
    Four-chambered circulation
    Three-chambered heart (frog) Squid Dissection Pix Phylum Mollusca . (Off site) The Cephalopod Home Page ( cool Octoplay Evolution of the Eye Movie

  • Class Bivalvia
    Class Bivalvia
    Class Amphineura
    Class Amphineura
    Class Gastropoda
    Class Gastropoda
    Class Gastropoda Class Gastropoda Class Cephalopoda Class Cephalopoda Class Scaphopoda (Another pix is here Class Monoplacophora ( Neopilina ; Another pix is here

    13. New Zealand Mudsnail In The Western USA
    Home Page News. Some of the presentation and posters from the 5th New Zealand mudsnail in the Western USA Conference are now available.
    http://www.esg.montana.edu/aim/mollusca/nzms/
    Home Page- News
  • Some of the presentation and posters from the 5th New Zealand mudsnail in the Western USA Conference are now available.
  • Tim Davidson found a small population of the snails in Port Alberni, British Columbia: ( <20) under woody debris in the mid-low intertidal, salinity = 4, water temp = 21.8, lat/long = 49.247918, -124.8395221. The ID was confirmed by Robert Hershler. While this project (New Zealand mudsnail in the Western USA) made no provision for working outside the USA, this record is of interest as it is the northern-most report for Western North America.
  • The first report of the nzms in Montana west of the divide (the Swan River) is now thought to be the second known example of a detected failed population. The collection data was removed from the database. See the status page for more information.
  • Tarita Harju's thesis presents a GIS model using the data from the on-line database maintained here.
  • A new report on nzms in the Green River was recently released in pdf format (2007 MAY 08).
  • A report on the nzms in the Santa Monica Mountains of Southern California was recently released in pdf format (2006 SEPT 12).
  • 14. Mollusca - Wiktionary
    edit Proper noun. Wikipedia has an article on. mollusca Wikipedia. mollusca Retrieved from http//en.wiktionary.org/wiki/mollusca
    http://en.wiktionary.org/wiki/Mollusca
    Mollusca
    From Wiktionary
    Jump to: navigation search
    Contents

    15. Palaeos Metazoa: Mollusca: Phylum Mollusca
    An overview of the molluscs, with coverage of recent and extinct groups.
    http://www.palaeos.com/Invertebrates/Molluscs/Mollusca.htm
    Palæos Mollusca METAZOA Mollusca
    Page Back
    Unit Back Metazoa Cladogram ... Page Next Unit Next Unit Home Unit Cladogram Unit References Glossary ... Time
    Phylum Mollusca
    PROTOSTOMIA ARTHROPODA Trilobita PANCRUSTACEA ... LOPHOTROCHOZOA MOLLUSCA BASAL MOLLUSCA Rostroconchia BIVALVIA CYRTOSOMA ... PULMONATA `ANNELIDA
    Unit Contents
    Mollusca
    Shell Morphology

    Basal Mollusca

    Bivalvia
    ...
    References
    Page Contents
    Mollusca
    Physiology

    Diversity

    Habitat
    ...
    Links

    The Mollusks are a large and diverse group of soft-bodied unsegmented animals. Nearly 130,000 recent species are known, and some 35,000 fossil species. They include many familiar animals, like snails, clams, squid, octopi, etc, as well as others not so well known. They range in size from microscopic forms to the giant squid (Architeuthis), and have a long and venerable history appearing during earliest Cambrian time, if not before.
    Physiology
    All mollusks possess some or all of the following characteristics:
    • a muscular fleshy foot which with gastropods (snails) is used to crawl along with but in cephalopods is modified into tentacles a visceral mass containing the digestive, excretory, and reproductive organs

    16. Zootaxa; Mollusca
    Chitons (mollusca Polyplacophora) from the southern Chilean Comau Fjord, with reinstatement of Tonicia calbucensis Plate, 1897
    http://www.mapress.com/zootaxa/taxa/Mollusca.html
    ZOOTAXA Home Online issues Editor Author ... Subscription
    Mollusca
    GET Acrobat Reader
    for viewing PDF files Editor, Dr. D. L. Geiger geiger@vetigastropoda.com
    Santa Barbara Museum of Natural History, 2559 Puesta del Sol Road, Santa Barbara, CA 93105, USA
    Editor, Dr Rüdiger Bieler bieler@fieldmuseum.org
    Field Museum of Natural History, Lake Shore Drive, Chicago, IL 60605-2496, USA.
    Editor, Dr. Marta deMaintenon demainte@hawaii.edu
    Marine Science Department, University of Hawaii at Hilo, 200 West Kawili Street,
    Hilo, HI 96720-4091, USA
    Editor, Dr. Bernhard Ruthensteiner BRuthensteiner@zsm.mwn.de
    Zoologische Staatssammlung München, Münchhausenstrasse 21, D-81247 MUnchen, Germany.
    Editor, Dr. Michael Schroedl schroedl@zi.biologie.uni-muenchen.de Schroedl@zsm.mwn.de Bavarian State Collection of Zoology, Muenchhausenstrasse 21, 81247 Munchen, Germany. Article Zo otaxa 2 Apr. 2008

    17. General Zoology - Phylum Mollusca
    www.cbs.umn.edu/class/spring2000/biol/2012/mollusca.htm Similar pages COA ConchologyThe following classification reflects many changes in ideas of molluscan relationships in the last fifteen years, particularly among gastropods.
    http://www.cbs.umn.edu/class/spring2000/biol/2012/mollusca.htm
    General Zoology (BIOL 2012)
    Go To Lecture Syllabus
    Phylum Mollusca
    "Next to Arthropoda, the phylum Mollusca has the most named species in the animal kingdom probably about 50,000 living species, not to mention some 35,000 fossil species discovered to date. The name Mollusca indicates one of their distinctive characteristics: a soft body." Hickman, C.P. and L.S. Roberts. 1994. Biology of Animals, Sixth Edition . Wm.C.Brown Publishers: Dubuque, Iowa. Page 499.
    Major Characteristics of Phylum Mollusca
  • Body bilaterally symmetrical (bilateral asymmetry in some); unsegmented, usually with definite head; Ventral body wall specialized as a muscular foot , variously modified but used chiefly for locomotion; Dorsal body wall forms the mantle , which encloses the mantle cavity , is modified into gills or a lung , and secretes the shell shell absent in some); Surface epithelium usually ciliated and bearing mucous glands and sensory nerve endings; Coelom mainly limited to area around heart Complex digestive system; rasping organ (
  • 18. Mollusca
    Invertebrates in the Plankton mollusca. The molluscs, including gastropods, bivalves, cephalopods, and chitons, are the second largest of all invertebrate
    http://depts.washington.edu/fhl/zoo432/plankton/plmollusca/Molluscs.html
    Invertebrates in the Plankton: Mollusca
    The molluscs, including gastropods, bivalves, cephalopods, and chitons, are the second largest of all invertebrate groups. As adults, these animals have varied lifestyles, living in the water column, on rocky and sandy bottoms, within tidal flats and on rocky shores. We observed several planktonic molluscs, described below. For more information about the habitats of adult molluscs, see the other habitat pages
    This pedi-veliger larva is practially a juvenile clam. Notice its well-developed shell. Floating in the plankton, this animal consumes microscopic algae. It will soon settle and grow to be a benthic adult. In early stages of its development, this animal resembled the gastropod veliger below.
    The Lacuna veliger swims freely in the plankton, using large ciliated lobes for locomotion and food capture. At metamorphosis, the gastropod's body form changes dramatically. The cilated lobes, larval heart, and part of the larval excretory system are lost when the animal assumes its bethic adult form.
    Clione limacina , known commonly as a "sea butterfly," was one of the few completely pelagic adult gastropods we encountered in the plankton. This pteropod, as it is classified taxonomically, is quite cosmopolitan in its distribution, ranging throughout the northern oceans.

    19. Mollusca
    The molluscs or mollusks are the large and diverse phylum mollusca, which includes a variety of familiar creatures wellknown for their decorative shells or
    http://www.sciencedaily.com/articles/m/mollusca.htm
    Science Reference
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    Mollusca
    The molluscs or mollusks are the large and diverse phylum Mollusca, which includes a variety of familiar creatures well-known for their decorative shells or as seafood. See also: These range from tiny snails, clams, and abalone to the octopus and squid (which are considered the most intelligent invertebrates).. For more information about the topic Mollusca , read the full article at Wikipedia.org , or see the following related articles: Squid read more Intelligence of squid and octopuses read more ... read more Note: This page refers to an article that is licensed under the GNU Free Documentation License . It uses material from the article Mollusca at Wikipedia.org. See the page for more details.
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    20. The Molluscs (Phylum Mollusca)
    An introduction to the biology, classification and ecology of Octopuses, Slugs, Snails and Squid the phylum mollusca.
    http://www.earthlife.net/inverts/mollusca.html
    The Phylum Mollusca
    Etymology:- From the Latin Molluscus meaning soft of body.
    Characteristics of Mollusca:-
    1)Bilaterally symmetrical.
    2)Body has more than two cell layers, tissues and organs.
    3)Body without cavity.
    4)Body possesses a through gut with mouth and anus.
    5)Body monomeric and highly variable in form, may possess a dorsal or lateral shells of protein and calcareous spicules.
    6)Has a nervous system with a circum-oesophagal ring, ganglia and paired nerve chords.
    7)Has an open circulatory system with a heart and an aorta.
    8)Has gaseous exchange organs called ctenidial gills.
    9)Has a pair of kidneys. 10)Reproduction normally sexual and gonochoristic. 11)Feed a wide range of material. 12)Live in most environments.
    Introduction
    After the Arthropods the Molluscs are the most successful of the animal phyla in terms of numbers of species. There are about 110,000 species known to science most of which are marine. They occupy a vast range of habitats however both aquatic and terrestrial, from the arctic seas to small tropical streams and from valleys to mountainsides 7,000 metres high, there are a few adapted to live in deserts and some are parasitic. They also exhibit an enormous range in size, from species which are almost microscopic to the largest of all invertebrates the giant squid which can weighs 270 kg and measures up to 12 metres long in the body, with tentacles as much as another 50 metres in length. Many species are common and many more a beautiful. Most species secrete a shell of some sort, these shells are long lasting and have been collected by human beings for thousands of years, some of these shells, and the pearls which come from oysters, which are also molluscs may be among the earliest forms of money.

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