21. San Diego Shell Club Serves members interested in mollusca and associated marine life. Information about club's events, membership, history, and publication, The Festivus. http://www.molluscs.net/SanDiegoShellClub/

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:

22. MOLLUSCA http://www.geocities.com/CapeCanaveral/4646/

23. Malacology In Latvia / Malakologie In Lettland Directory of Latvian malacologists, checklist of Latvian species, bibliography, and other research information about Latvian malacology. http://mollusca.from.lv/

Malacology in Latvia / Malakologie in Lettland Malacology in Latvia / Malakologie in Lettland

24. MOLLUSCA http://www.geocities.com/malacologia/

25. BIOSIS | Resource Guide | Mollusca - General Checklist of the Recent mollusca Described from the New Zealand Exclusive Economic Zone. CLEMAM database Checklist of European Marine mollusca. CONCHL conchology discussion list http://www.biosis.org/zrdocs/zoolinfo/moll_gen.htm

Pull Down for Destinations BIOSIS Previews Zoological Record MethodsFinder Index to Organism Names Internet Resource Guide for Zoology User Support Search Sitemap Index Help with this Site Resource Guide Introduction About the Resource Guide Awards Latest Additions ... 2nd Catalogue of Malacology A N van der Bijl, dealer in new, secondhand and antiquarian books, periodicals and reprints/offprints/separates on recent and fossil Mollusca Animal Diversity Web University of Michigan Museum of Zoology Annotated Catalog of Malacological Meetings, Including Symposia and Workshops in Malacology ANSP malacology collection ANSP publications incl Tryonia Aquatic Mollusks of North Dakota ... Australian Microshells identification, images, references and links bionet.molbio.molluscs Bishop Mueum Hawaii Malacology Databases Calcium, snails, and birds: a case study Web Ecology vol.1 2000, Oikos/Munksgaard (pdf document) Catalog of Mediterranean Seashells with index by class on main page, site contains an extract from the book 'Catalogo illustrato delle conchiglie marina del Mediterraneo'

26. Mollusca In Germany - Snails, Clams And Other Mollusks Here you can find info about molluscs (mollusca) and malacology (researchon molluscs). Members 1998. This page belongs to www.mollusca.net. http://www.mollusca.net/

Mollusks and Malacology in Germany in deutscher Sprache Here you can find info about molluscs (mollusca) and malacology (research on molluscs). Members of the mollusca are snails and slugs (both gastropods, Gastropoda), clams and mussels (Bivalvia), squids and octopuses (Cephalopoda), chitons (Polyplacophora), tusk shells (Scaphopoda), and the less popular groups of Monoplacophora, Solenogastres and Caudofoveata. List of German land and freshwater mollusks Shell museum "Haus der Natur - Cismar" ... German Malacological Society (in German language) Conservation of molluscs (in German language) Old shell books Info page on molluscs Projektgruppe Molluskenkartierung Molluscs of the Baltic Sea Addresses of malacologists in the German Malac. Soc. Addresses of international malacologists Collections of molluscs ... Cypraeidae (Kauris) Page by Dr. Vollrath Wiese the pages of Haus der Natur Cismar were visited times since 1998. This page belongs to www.mollusca.net

27. Metazoan Diversity Information about mollusk systematics, diversity, and evolution and extinction patterns. http://www.teaching-biomed.man.ac.uk/bs1999/bs146/biodiversity/mollusca.htm

28. The Mollusc Page This page lists links for the phylum mollusca which contains cephalopods,snails, clams, chitons and scallops. The Mollusc Page. Phylum mollusca. http://www.dal.ca/~ceph/TCP/mollusca.html

The Mollusc Page Molluscs include the familiar snails, garden slugs, and beautiful sea slugs (class Gastropoda), the clams, oysters, scallops, and mussels (class Bivalvia), the active octopuses, squid, cuttlefish and Nautilus (class Cephalopoda) as well as some less familiar groups such as the classes Aplacophora (shell-less worm looking things called solenogasters), Caudofoveata (small shell-less deep-sea worm like things), Monoplacophora (living fossils - only 8 or so species), Polyplacophora (chitons) and Scaphopoda (tusk shells). In terms of numbers of species, Mollusca is the second largest phylum of invertebrates (Arthropoda is the largest). Molluscs are one of the most noticeable groups of invertebrates as well - their attractive shells are collected and many species are consumed as food (hungary yet?). Links with asterics around them are sites that I especially like (I like noncommercial pages with clear explanations, good visuals, and subpages). A "$" indicates that there is something for sale somewhere in the site. Index Phylum Mollusca Class Bivalvia Class Cephalopoda Class Gastropoda ... Class Scaphopoda Phylum Mollusca The Conchologist's Information Network includes Things you always wanted to know about shells The Zoological Record keeps a better and more frequently updated list of mollusca links than I ever will!

29. Biol. Bull., December 1990. Laboratory Culture Of The Aeolid Nudibranch Berghia Carroll D J and S C Kempf. Biol. Bull. 179 243253. (December 1990) http://www.breeders-registry.gen.ca.us/Reprints/biolbull/v179/berghia_bb.htm

Reference: Biol. Bull : 243-253. (December 1990) Laboratory Culture of the Aeolid Nudibranch Berghia verrucicornis (Mollusca, Opisthobranchia): Some Aspects of Its Development and Life History DAVID J. CARROLL AND STEPHEN C. KEMPF Department of Zoology and Wildlife Science and Alabama Agricultural Experiment Station, 101 Cary Hal, Auburn University, Alabama 36849-5508 Abstract. Adult Berghia verrucicornis individuals lay white, spiral egg masses containing zygotes. Egg masses are easily cultured in aerated, Millipore-filtered, seasoned aquarium water. Development proceeds quickly, with the bilobed velum apparent by the end of the second day, and the larval shell appearing at the beginning of the third day after oviposition. Hatching occurs 11 to 12 days after oviposition (23.9 +/- 1.3C). If egg masses are incubated without aeration, poecilogonous development is observed; both larvae and juveniles hatch from the same undisturbed egg mass. The larvae metamorphose soon after hatching, losing the velum and larval shell. A habitat-specific inducer is not required for metamorphosis; but a factor associated with the sea anemone Aiptasia pallada appears to enhance a larva's tendency to metamorphose. Juveniles begin feeding on

30. ADW: Gastropoda: Information Overview of gastropod classification from the Animal Diversity Web. http://animaldiversity.ummz.umich.edu/mollusca/gastropoda.html

Overview News Conditions of Use ADW Staff ... Home Kingdom Animalia Phylum Mollusca Class Gastropoda Class Gastropoda (gastropods, slugs, snails, and snails and slugs) Information Pictures Classification editLink('skunkworks/.accounts/200310302453') 2004/05/18 13:30:30.293 GMT-4 By John B. Burch and Phil Myers Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Members of this Class The Class Gastropoda includes the snails and slugs. Most gastropods have a single, usually spirally coiled shell into which the body can be withdrawn, but the shell is lost or reduced some important groups. Gastropods are characterized by "torsion," a process that results in the rotation of the visceral mass and mantle on the foot. The result is that the mantle cavity (including anus) lies in the anterior body, over the head and mouth, and the gut and nervous system are twisted. Torsion takes place during the veliger stage, usually very rapidly. Veligers are at first bilaterally symmetric, but torsion destroys this pattern and results in an asymmetric adult. Some species reverse torsion ("detorsion"), but evidence of having passed through a twisted phase can be seen in the anatomy of these forms. Many snails have an operculum, a horny plate that seals the opening when the snail's body is drawn into the shell. Gastropods have a muscular foot which is used for "creeping" locomotion in most species. In some, it is modified for swimming or burrowing. Most gastropods have a well-developed head that includes eyes, 1-2 pairs of tentacles, and a concentration of nervous tissue (ganglion).

31. Systematic Research Collections: Mollusca (RECENT FOSSIL mollusca). Compiled by DMNH Malacology publishes IndoPacificmollusca (available, but inactive), and the occasional serial, Nemouria. http://www.inhs.uiuc.edu/cbd/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.

32. Gastropoda Overview of biology and taxonomy; species list for Montana. http://www.esg.montana.edu/dlg/aim/mollusca/gastropd.html

Gastropoda Introduction Snails. The largest and most diverse group of mollusks. The phylum Mollusca in a ancient group that is second in size only to the arthropods. There are over 50,000 living species and about as many fossil species known. Mollusks are unsegmented, coelomate protostomes with a ventral muscular foot, a shell-secreting mantle, and a radula as the feeding organ. They have a trochophore larval stage similar to the annelids and a later veliger larval stage. The circulatory system is open and excretion is by metanephridia. Gastropods make up 70% of all mollusks and they are well represented in marine, freshwater and terrestrial habitats. About 500 species, 350 prosobranchs and 150 pulmonates, in the freshwaters of North America, north of Mexico. Recognition Mollusks with increased cephalization and an asymmetrical, univalved, usually spiral shell serving as a retreat rather than a shield. The class is characterized by torsion, a 180 degree counterclockwise rotation of the body behind the head. Life Cycle Marine forms have a free-swimming veliger larva, freshwater forms usually pass that stage within the egg and miniature adults emerge. Pulmonates are monoecious, copulation usually involves mutual sperm transfer, but it can be one-way only or they can be self-fertile. Freshwater prosobranchs are dioecious, except for Valvatidae. Some are parthenogenetic, some are egg brooders, some are both. Mating and egg laying may be seasonal or occur throughout much of the year. The species may be semelparous or iteroparous. Individuals of some species may live for several years. The life cycle is non-emergent.

33. ADW: Archaeogastropoda: Information Images and brief description. Species accounts for Haliotis kamtschatkana (Northern Abalone) and H. rufescens (Red Abalone). http://animaldiversity.ummz.umich.edu/mollusca/gastropoda/archaeogastropoda.html

Overview News Conditions of Use ADW Staff ... Home Kingdom Animalia Phylum Mollusca Class Gastropoda Order Archaeogastropoda Order Archaeogastropoda Information Classification editLink('skunkworks/.accounts/200310302420') 2004/05/18 13:30:19.876 GMT-4 By John B. Burch Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Order: Archaeogastropoda Members of this Order These primitive mollusks have a linear series of perforations rather then a slit for the exhalant mantle cavity currents. Haliotis is an important commercial mollusk; there is a world demand for its meat. Slits in the mantle and shell facilitate the excurrent water leaving the mantle cavity. This is a primitive solution to the sanitation problems caused by torsion (having the mantle cavity with the anus, nephridiopores and gonopores located over the head). Genetic diversity. The shells in any population of Umbonium are highly polymorphic. Commonly called "button shells" because of their size and colors, these primitive mollusks inhabit sandy littoral habitats in the Indo-Pacific. Note the multispiral operculum. Contributors John B. Burch (author).

34. CLEMAM Home Page CLEMAM Check List of European Marine mollusca. Welcome to CLEMAM, an authoritativedatabase of the Marine mollusca of Europe and surrounding areas. http://www.somali.asso.fr/clemam/index.clemam.html

C L E M A M C heck L ist of E uropean Ma rine M ollusca Welcome to CLEMAM, an authoritative database of the Marine Mollusca of Europe and surrounding areas. PLEASE CHOOSE YOUR LANGUAGE: CHOISISSEZ VOTRE LANGUE : ENGLISH HELP Editorial policy Future developments About CLEMAM ... Scope CLEMAM is a taxonomically oriented database of the marine Mollusca of Europe and adjacent areas ( view the map of coastal sectors The database lists the species currently accepted as valid ( V , and boldface display), thence for each one its basionym ( , original reference where the specific name was introduced) and all synonyms ( ) and questionable synonyms ( ) known to the CLEMAM editor. Subsequent references to the species are not exhaustive; these include "chresonyms" ( X , references to the species, using the valid name, or one of its synonyms or combinations), and misidentifications ( , references in which the valid name of another species is misapplied). Page references are given for all entries registered after 1995, and are being completed gradually for the initial batch, where only a statement of the name, author and date of publication were given. There are currently about 17.000 references, of which ca. 3500 are valid names.

35. ADW: Scaphopoda: Information Top/Science/Biology/Flora_and_Fauna/Animalia/mollusca/Scaphopoda http://animaldiversity.ummz.umich.edu/mollusca/scaphopoda.html

Overview News Conditions of Use ADW Staff ... Home Kingdom Animalia Phylum Mollusca Class Scaphopoda Class Scaphopoda (tusk shells) Information Classification editLink('skunkworks/.accounts/200310302501') 2004/05/18 13:30:31.574 GMT-4 By Phil Myers Kingdom: Animalia Phylum: Mollusca Class: Scaphopoda Members of this Class The scaphopods, or tusk shells, are a small group of marine mollusks (around 350 species are known). They are sedentary animals with a slender, tubular shell open at both ends. The mantle cavity is large, and the mantle wraps around the viscera to form a tube. Scaphopods have a well-developed foot located at the large end of the shell. The foot is used for burrowing. Club-like tentacles also extend from the large end of the shell. A radula is present; the head is rudimentary; and eyes are lacking. There is no heart. Scaphopods feed on detritus and protistans, which are captured in mucus secreted by the foot and tentacles. Source : Hickman, C.P. and L. S. Roberts. 1994. Animal Diversity . Wm. C. Brown, Dubuque, IA. Brusca, R. C., and G. J. Brusca.

36. Introduction To The Scaphopoda Information about biology of the tusk shells, with illustrations and links. http://www.ucmp.berkeley.edu/mollusca/scaphs/scaphopoda.html

Introduction to the Scaphopoda the tusk shells The Scaphopoda are a distinctive group of molluscs commonly known as the "tusk shells" because their shells are conical and slightly curved to the dorsal side, making the shells look like tiny tusks (see the photos below). The scientific name Scaphopoda means "shovel foot", a term that refers to the "head" of the animal, which lacks eyes and is used for burrowing in marine mud and sediments. The most distinctive feature of scaphopods is that the tubular shell is open at both ends, not just one end as in most molluscs. Scaphopods live their adult lives buried in sand or mud, with their head-end pointed downwards. Only the narrow posterior end of the shell sticks up into the seawater for water exchange and waste expulsion. Gills have been lost in the scaphopods, so the mantle tissue not only produces the shell, but also serves the function of gills in obtaining oxygen from seawater. The mantle is fused into a tube that surrounds the body of the animal, but it is open at both ends. Water is circulated around the mantle cavity by the action of numerous cilia . When the dissolved oxygen runs low, the water is ejected through the top end of the shell by contraction of the foot.

37. Malacology In Latvia / Malakologie In Lettland Malacology in Latvia / Malakologie in Lettland. http://www.mollusca.from.lv/

Malacology in Latvia / Malakologie in Lettland Malacology in Latvia / Malakologie in Lettland

38. ADW: Aplacophora: Information Top/Science/Biology/Flora_and_Fauna/Animalia/mollusca/Aplacophora http://animaldiversity.ummz.umich.edu/mollusca/aplacophora.html

Overview News Conditions of Use ADW Staff ... Home Kingdom Animalia Phylum Mollusca Class Aplacophora Class Aplacophora Information Classification editLink('skunkworks/.accounts/200310302406') 2004/05/18 13:30:18.389 GMT-4 By Phil Myers Kingdom: Animalia Phylum: Mollusca Class: Aplacophora Members of this Class These organisms lack shells and are worm-like in body form. They have calcareous scales or spicules in their integument. Aplacophorans lack nephridia. All are marine; around 320 species are known, mostly from the deep oceans. They can be divided into two groups (sometimes separated as Classes Caudofoveata and Solenogastres); caudofoveates are burrowers that feed on detritus and bottom-dwelling microorganisms, while soleonogasters, which also live on the bottom, feed on cnidarians. Source Hickman, C.P. and L. S. Roberts. 1994. Animal Diversity . Wm. C. Brown, Dubuque, IA. Brusca, R. C., and G. J. Brusca. Invertebrates . 1990. Sinauer Associates, Sunderland, MA. Contributors Phil Myers (author), Museum of Zoology, University of Michigan. 2004/05/18 13:30:18.492 GMT-4

39. BIOSIS | Resource Guide | Mollusca - General mollusca — General. http://www.biosis.org.uk/zrdocs/zoolinfo/moll_gen.htm

Pull Down for Destinations BIOSIS Previews Zoological Record MethodsFinder Index to Organism Names Internet Resource Guide for Zoology User Support Search Sitemap Index Help with this Site Resource Guide Introduction About the Resource Guide Awards Latest Additions ... 2nd Catalogue of Malacology A N van der Bijl, dealer in new, secondhand and antiquarian books, periodicals and reprints/offprints/separates on recent and fossil Mollusca Animal Diversity Web University of Michigan Museum of Zoology Annotated Catalog of Malacological Meetings, Including Symposia and Workshops in Malacology ANSP malacology collection ANSP publications incl Tryonia Aquatic Mollusks of North Dakota ... Australian Microshells identification, images, references and links bionet.molbio.molluscs Bishop Mueum Hawaii Malacology Databases Calcium, snails, and birds: a case study Web Ecology vol.1 2000, Oikos/Munksgaard (pdf document) Catalog of Mediterranean Seashells with index by class on main page, site contains an extract from the book 'Catalogo illustrato delle conchiglie marina del Mediterraneo'

40. ADW: Monoplacophera: Classification Top/Science/Biology/Flora_and_Fauna/Animalia/mollusca/Monoplacophora http://animaldiversity.ummz.umich.edu/mollusca/monoplacophera.html

Overview News Conditions of Use Contact Us ... Report an Error Our apologies. We could not find any information about the taxon Monoplacophera in the Animal Diversity Web. This could be a name that is missing from our taxon database, or an older name that is no longer considered valid (Please see our scientific name document for an explanation of how names change). You might also need to check your spelling or your sources. You can try searching our catalog with variations of Monoplacophera . If you are looking for a species, you can also search for the generic name (for example, the Myotis part of Myotis lucifugus ) and look at the list of recognized species within that genus. If you're really stuck, you can contact us Thank you. - the Animal Diversity Web Zookeepers 404 Taxon Not Found Home About Us Special Topics Teaching ... Comment Sponsored in part by the Interagency Education Research Initiative, the Homeland Foundation and the University of Michigan Museum of Zoology The ADW Team gratefully acknowleges their support!

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