1. ADW: Mollusca: Information Home Kingdom Animalia Phylum mollusca. Phylum mollusca (mollusks). By John B. Burchand Phil Myers. Kingdom Animalia. Phylum mollusca. Members of this Phylum. http://animaldiversity.ummz.umich.edu/mollusca.html

Overview News Conditions of Use ADW Staff ... Home Kingdom Animalia Phylum Mollusca Phylum Mollusca (mollusks) Information Pictures Specimens Classification editLink('skunkworks/.accounts/200310302009') 2004/05/18 13:28:08.706 GMT-4 By John B. Burch and Phil Myers Kingdom: Animalia Phylum: Mollusca Members of this Phylum Molluscs are bilaterally symmetrical eumetazoans. They have a true coelom (eucoelom) which is formed by the splitting of embryonic mesodermal masses (schizocoely). Development is protostomous. An important characteristic of most molluscs is the head-foot region. Most molluscs are strongly cephalized; that is, they have a well-developed head, in which is located a mouth and a concentration of nervous and sensory functions. Adjacent to the head is a large, muscular foot formed from the ventral body wall. Used primarily in locomotion, the surface of the foot is sometimes ciliated and laden with numerous mucous glands. Another characteristic of most molluscs is the mantle. This sheath of tissue is formed from the dorsal body wall. It surrounds the mantle cavity, which houses the gills or lungs if they are present, and its surface may assist in gas exchange. The mantle also secretes the shell in those forms that possess one. Internally, molluscs have a complicated digestive system, with a mouth in the head and the anus emptying into the mantle cavity. A rasping organ used in feeding, the radula, is present in all groups except bivalves and

2. M30.htm 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. well known because they're good to eat). 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

3. The Mollusca The mollusca. Sea Hares, Snails, Scallops, Squid Coming Soon! We have only a page on Scaphopods right now, but more mollusc pages are coming soon! http://www.ucmp.berkeley.edu/mollusca/mollusca.html

The Mollusca Sea Hares, Snails, Scallops, Squid... Coming Soon! We have only a page on Scaphopods right now, but more mollusc pages are coming soon! For additional information about mollusc research, try Mollia , a resource site for malacologists. Also visit our list of on-line mollusc collections

4. 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) -

5. Västerås SportDykarKlubb Mollusca - Din Dykarklubb I Västerås V¤ster¥s. Program, sektioner, bildarkiv samt k¶p och s¤ljannonser. http://www.vsdk-mollusca.org/

This page uses frames, but your browser doesn't support them. Get a better browser or Click here http://www.vsdk-mollusca.org Här kan du läsa om bla. Välkommen in till Västerås Bästa SportDykarKlubb

6. Mollusc Listserver Information molluscan Evolution. Listserver Information. Molluscs are one of the most diverse groups of invertebrate animals both in form and habitat. electronic happenings that may be of interest to the http://www.ucmp.berkeley.edu/mologis/mollusca.html

Molluscan Evolution Listserver Information Molluscs are one of the most diverse groups of invertebrate animals - both in form and habitat. They have figured prominently in paleobiological and biological studies, and have served as study organisms in numerous evolutionary, biomechanical, ecological, physiological, and behavioral studies. It is our intent to provide an informal and rapid response forum for discussions of molluscan evolution, paleontology, taxonomy and natural history. A special emphasis of this list server will be to provide an interface between paleontological and neonotological molluscan workers. We will also post notices of meetings, symposia, literature, software and other electronic happenings that may be of interest to the malacological community. MOLLUSCA is maintained and managed by D.R. Lindberg and R.P. Guralnick Mollia HomePage

7. Úvodní Stránka Komplexn­ str¡nky o kmenu mollusca. Malakologie, antropologie a dalÅ¡­ informace. http://mollusca.wz.cz/

Diskusní fórum Info Autoøi Spolupráce / Cooperation ... English Vysunovatelné menu: Malakologie Antropologie Ostatní Stránky o mìkkýších Pages about molluscs h t t p : / / m o l l u s c a . w z . c z Vítejte na stránkách o mìkkýších Welcome on pages about molluscs Hledat na tìchto stránkách pomocí FreeFind Vyhledává také v diskusním fóru , ale neprohledává PDF dokumenty. Vyhledává pomocí google.com také PDF dokumenty, ale neprohledá diskusní fórum Vyhledej jen v rámci mollusca.wz.cz Mapa stránek Nový link Anglicko-èeský slovník mìkkýšù (pøes 3000 názvù) a další tištìné nebo elektronické slovníky mùžete sehnat na www.pcslovniky.com Aktualizováno Kolik druhù mìkkýšù žije v Èeské republice? Nové Seznamy mìkkýšù / Checklists of molluscs ( Mollusca Nový link : 26. 3. 2004 Vodné bezstavovce (makroevertebráta) Slovenska, súpis druhov a autekologické charakteristiky http://www.shmu.sk/hydro/ohpv/RSV/publikacie.html Nové : 20. 3. 2004 pøidání 7 fotek mlžù do Galerie - mìkkýši Nové Malakologický výkladový slovník (rozšíøen na více než 300 termínù)

8. Mollusca (BMLSS Information) mollusca. mollusca. Latin molluscus = soft Checklist of European Marine mollusca. It is in this class of animals that the typical spiral snaillike molluscs are http://ourworld.compuserve.com/homepages/BMLSS/molluscs.htm

Mollusca Mollusca Latin molluscus = soft Soft bodied animals with a hard external shell (mussels, winkles, snails), or an internal shell (sea hares, cuttlefish) or have lost their shell in the course of evolution (nudibranchs). Molluscs have a mantle that secretes the calcium carbonate that makes up the shell. They inhabitat numerous different environments with a large number living in the sea. Octopuses and squids have evolved to intelligent mobile forms with complex behaviour. British species of molluscs found in the seas and estuaries around these islands Class Polyplacophora Chitons The commonest and most widespread chiton found on British rocky shores is Lepidochitona cinerea . On many shores it is the only species to be found. Chitons Page Class Scaphopoda Tusk Shells Class Gastropoda Hardy's Internet Guide to Marine Gastropods Checklist of European Marine Mollusca It is in this class of animals that the typical spiral snail-like molluscs are classified. However, unlike land snails , the marine ones breathe through gills to obtain oxygen from sea water. Gastropods have a feeding organ called a radula.

9. TAXIS Information System, M.N.H.N. Paris This site provides a searchable database that allows the user to search for taxonomic references by taxon, geographical locality, author or keyword. http://www.mnhn.fr/base/malaco.html

Welcome to CLEMAM powered by TAXIS CLEMAM

10. Error: 404 Index to Organism Names. Search. mollusca. General ( malacology, conchology http://www.biosis.org/zrdocs/zoolinfo/grp_moll.htm

Sign up to receive news and alerts from BIOSIS. About BIOSIS About Us News Releases Exhibit Schedule Careers ... Board of Trustees Products Full Product List Product Updates Product Comparisons Vendor/Platform Comparisons ... Downloading Policy Training Resources Quick Reference Cards Workbooks Presentations Online Training Error 404 The requested URL was not found on this server. Select a BIOSIS Mirror US UK

11. ADW: Mollusca: Classification an Error. Home Kingdom Animalia Phylum mollusca. Phylum mollusca (mollusks). irrorata.Marionia, mollusks mollusca, mollusks mollusca. mollusks http://animaldiversity.ummz.umich.edu/site/accounts/pictures/Mollusca.html

Overview News Conditions of Use Contact Us ... Home Kingdom Animalia Phylum Mollusca Phylum Mollusca (mollusks) Information Pictures Specimens Classification Pacific banana slug, Pacific bananaslug, banana slug, and ariolimax columbianus Ariolimax columbianus Pacific banana slug, Pacific bananaslug, banana slug, and ariolimax columbianus Ariolimax columbianus black arion and European black slug Arion ater dusky arion Arion subfuscus dusky arion Arion subfuscus Collisella giant garden slug, giant gardenslug, and spotted garden slug Limax maximus giant garden slug, giant gardenslug, and spotted garden slug Limax maximus marsh periwinkle Littorina irrorata Marionia mollusks Mollusca mollusks Mollusca mollusks Mollusca mollusks Mollusca Mopalia ciliata Home About Us Special Topics Teaching ... Comment Sponsored in part by the Interagency Education Research Initiative, the Homeland Foundation and the

12. Mollusca - Introduction Unit mollusca, 1 Introduction. mollusca. The name mollusca (from theLatin mollis meaning soft), was first used by the French zoologist http://www-biol.paisley.ac.uk/courses/Tatner/biomedia/units/moll1.htm

Unit: Mollusca 1 Introduction MOLLUSCA The name Mollusca (from the Latin mollis meaning soft), was first used by the French zoologist Cuvier in 1798 to describe squids and cuttlefish , animals whose shell is reduced and internal, or entirely absent. It was only later that the true affinities between these species and other molluscs, such as snails and bivalves , were fully recognised. The molluscs are a very successful group. If success is measured in terms of number of species and variety of habitats to which they have become adapted, then molluscs are one of the three most successful groups in the animal kingdom. Over 160,000 species have been described, of which around 128,000 are living and about 35,000 are recorded as fossil species. Molluscs are found in nearly all habitats. In the sea they occur from the deepest ocean trenches to the intertidal* zone. They may be found in freshwater as well as on land where they occupy a wide range of habitats. Thus, during their evolution, they have become adapted to living in nearly all available habitats. The phylum Mollusca is normally divided into 8 classes of very unequal importance; the most important class of living molluscs is the

13. Mollusca - Class Bivalvia Unit mollusca, 7 Class Bivalvia. Class Bivalvia. The Bivalvia (alsoreferred to by some authors as the Lamellibranchia or Pelecypoda http://www-biol.paisley.ac.uk/courses/Tatner/biomedia/units/moll7.htm

Unit: Mollusca 7 Class Bivalvia Class Bivalvia The Bivalvia (also referred to by some authors as the Lamellibranchia or Pelecypoda) is the second largest class of the molluscs. They show much variation in body form yet share a basic morphology. The bivalves are bilaterally symmetrical* , laterally compressed molluscs, with extensive MANTLE lobes which secrete a single shell composed of two valves. The two valves of the shell are hinged dorsally* where they are held together by a new structure, the ligament, and completely enclose the rest of the body. The valves are closed by two large transverse muscles, the anterior and posterior adductor muscles. Bivalve SENSORY APARATUS and LOCOMOTION reflect the morphology described. The bivalves are mainly marine, but a few species are found in freshwater habitats, although none have invaded the land. Many species of bivalve are of COMMERCIAL IMPORTANCE. Glossary Home Museum Plan ... Next Page Unit Contents 1 Introduction 2 Body structure 3 Class Caudofoveata 4 Class Polyplacophora ... 15 Test yourself 4

14. Unitas Malacologica Newsletter Keeping the world of malacology informed and furthering the study of mollusca by individuals, societies and institutions worldwide. http://www.ucmp.berkeley.edu/mologis/UMNewslet.html

Current Issue April 1998 Previous issues: Number 12 October 1997 Number 11 February 1997 Number 10 July 1996 Number 9 January 1996 Search Unitas Malacogica Newsletters Search For: Boolean: AND OR Case Insensitive Sensitive Mollia HomePage

15. Mollusca mollusca. Snails, clams, mussels, squids, octopi, chitons, and tusk shells. Containing group Bilateria. Table of Contents. References. Information on the Internet. References. Beesley, P. L., G. J . http://phylogeny.arizona.edu/tree?group=Mollusca&contgroup=Animals

16. Mollusca mollusca. Snails, clams, mussels, squids, octopi, chitons, and tusk shells. Beesley,PL, GJB Ross, and A. Wells (eds.) 1998. mollusca The Southern Synthesis. http://tolweb.org/tree?group=Mollusca&contgroup=Bilateria

17. San Diego Shell Club Organized and operated exclusively for educational and scientific purposes and more particularly to enjoy, promote the study, and further the conservation of mollusca and associated marine life, by lectures, club meetings, and field trips. http://www.molluscs.net/SanDiegoShellClub/index.html

Welcome to the official web page of the San Diego Shell Club. Please, feel free to look around and explore. If you have any questions that are not answered here, please do not hesitate to contact us at: cmhertz@pacbell.net Club Information General Meeting Information ... Skoglund Word Listt General Meeting Information There are nine program meetings yearly (on the third Thursday of the month) in Room 104 of the Casa Del Prado in Balboa Park in San Diego with meetings beginning at 7:30 PM. Programs are presented by invited speakers and are followed by refreshments and a social time. Return to Main Menu Annual Social Events Three social events are held each year: an auction/potluck (April), fall garden party (September), and Christmas dinner party. Exact dates for these events vary so call or write for details. Return to Main Menu Membership Dues Membership dues are $15.00 (domestic), and $30.00 (overseas, air mail). The membership dues and the auction/potluck are the primary sources of revenue for Club projects and operating expenses. We are truly a non-profit organization. This non-profit status is recognized by the State of California and the IRS. Return to Main Menu Library The San Diego Shell Club has one of the finest circulating libraries of its kind which includes a growing selection of videos made of Club programs, available to all members. Unlike the books, the videos may be borrowed by out-of-town members. Videos may be borrowed for one month for a fee of $3 to cover postage and handling and a deposit of $25 which will be returned on prompt receipt of the rewound video. To arrange for loans, contact the Club Librarian, Kim Hutsell at 5804 Lauretta St. #2 San Diego 92110 or email:

18. Cephalopoda Containing group mollusca Table of Contents. top. Introduction. top. TheCephalopoda is an ancient and very successful group of the mollusca. http://tolweb.org/tree?group=Cephalopoda&contgroup=Mollusca

19. Mollusca Biodiversity Home. mollusca. Prosobranchs. Pulmonates. Bivalves. Cephlapods Staff expertise Who's who in mollusca? http://www.nmgw.ac.uk:591/Museum/mollusca.htm

20. Systematic Research Collections: Mollusca List of recent and fossil mollusca systematic research collections. Maintained by the Illinois Natural History Survey. http://www.inhs.uiuc.edu/cbd/main/collections/mollusk_links/museumlist.html

SYSTEMATIC RESEARCH COLLECTIONS Compiled by: Kevin S. Cummings Illinois Natural History Survey Center for Biodiversity Champaign, Illinois, USA 61820 e-mail: ksc@inhs.uiuc.edu Anton Oleinik Purdue University Dept. of Earth and Atmospheric Sciences West Layfayette, Indiana, USA 47907-1397 e-mail: OleinikA@vm.cc.purdue.edu John H. Slapcinsky ex. Field Museum of Natural History Division of Invertebrates Roosevelt Road at Lake Shore Drive Chicago, Illinois, USA 60605 e-mail: slapcin@fmnh.org The following list of mollusk collections has been compiled to aid researchers by providing an up-to-date list of curators, collection managers and a description of the collection (i.e. size, geographic scope, percent computerized, etc.). Links have been added to each museum where additional information can sometimes be found. If a link is not present please send an url or gopher address to Kevin Cummings (ksc@mail.inhs.uiuc.edu ) and it will be added to the list. We would encourage any of the collections listed to provide a summary of their holdings or update an existing summary. We will date all new entries to provide a time reference to the information. Acronyms have been added to the list and have been taken from: Leviton, A.E., R.E. Gibbs, Jr., E. Heal, and C.E. Dawson. 1985. Standards in Herpetology and Ichthyology: Part I. Standard Symbolic Codes for Institutional Resource Collections in Herpetology and Ichthyology. Copeia 1985(3):802-832.

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