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Topic: Mollusca

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Mollusk

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Annelida

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	Mollusca - LoveToKnow 1911
		The definite erection of the Mollusca into the position of one of the great primary groups of the animal kingdom is due to George Cuvier (1788-1800), who largely occupied himself with the dissection of representatives of this type.
		In Mollusca the coelom is reduced and consists of two parts, the pericardial cavity which surrounds the heart, and the cavity of the gonads or generative organs.
		The structure of the Mollusca in the greater number of cases agrees with the hypothesis that the primitive form was unsegmented, and therefore had but one pair of coelomic ducts and one pair of nephridia.
	www.1911encyclopedia.org /Mollusca (6503 words)

	Palaeos Metazoa: Mollusca: Phylum Mollusca
		This diagram presents a stylized relationship between the different Molluscan groups, with all evolving from a "hypothetical ancestral mollusk".
		The name Mollusca (from the Latin mollis "soft"), was first used by the great French zoologist Cuvier in 1798 to refer to cephalopods like squids and cuttlefish.
		Systema Naturae 2000 / Classification - Phylum Mollusca
	www.palaeos.com /Invertebrates/Molluscs/Mollusca.htm (1498 words)

	Mollusca information - Search.com (Site not responding. Last check: )
		Biology > Flora and Fauna > Animalia > Mollusca > Gastropoda > Nudibranchs > Publications">Science >...
		Biology > Flora and Fauna > Animalia > Mollusca > Gastropoda > Prosobranchs > Neogastropoda">Science >...
		Biology > Flora and Fauna > Animalia > Mollusca > Gastropoda > Prosobranchs > Mesogastropoda">Science >...
	c10-ss-1-lb.cnet.com /reference/Mollusca (822 words)

	Mollusca - HighBeam Encyclopedia (Site not responding. Last check: )
		MOLLUSCA [Mollusca], taxonomic name for the one of the largest phyla of invertebrate animals (Arthropoda is the largest) comprising more than 50,000 living mollusk species and about 35,000 fossil species dating back to the Cambrian period.
		Gastropods and rostroconchs (Mollusca) from the Maxville Limestone (Upper Mississippian) in Ohio (1).
		(Caudofoveata) and the evolutionary implications for the phylum Mollusca.
	www.encyclopedia.com /html/M/Mollusca.asp (2095 words)

	Veröffentlichungen von Gerhard Haszprunar
		Anatomy and affinities of cocculinid limpets (Mollusca Archaeogastropoda).
		Anatomy and affinities of pseudococculinid limpets (Mollusca, Archaeogastropoda).
		The presence of podocytes situated in the epicardial wall of the auricle is regarded as plesiomorphic for the Mollusca and is confirmed for the Nudibranchia.
	www.zsm.mwn.de /dir/pub_haszprunar.htm (8343 words)

	Mollusca - Wikipedia, the free encyclopedia
		The mollusks or molluscs are the large and diverse phylum Mollusca, which includes a variety of familiar animals well-known for their decorative shells or as seafood.
		All species of the phylum Mollusca have a complete digestive tract that starts from the mouth to the anus.
		Radulae are diverse within the Mollusca, ranging from structures used to scrape algae off rocks, to the harpoon-like structures of cone snails.
	en.wikipedia.org /wiki/Mollusca (703 words)

	Go Ask Alice!: How to tell mollusca from genital warts (Site not responding. Last check: )
		Mollusca are harmless, painless, and itch-free bumps that are caused by a pox virus.
		Mollusca can be spread to other areas on one's self, or to others, by direct contact with the infected skin.
		Mollusca are smooth, pearl-like, flesh colored bumps that are found all over the body and do not typically swell or grow larger.
	www.goaskalice-cms.org /scripts/printerfriendly.cfm?questionid=2198 (466 words)

	Georges Cuvier - Wikipedia, the free encyclopedia
		In this latter capacity he visited the south of France; but he was in the early part of 1803 chosen perpetual secretary of the National Institute in the department of the physical and natural sciences, and he consequently abandoned the earlier appointment and returned to Paris.
		He now devoted himself more especially to three lines of inquiry: (i) the structure and classification of the Mollusca; (ii) the comparative anatomy and systematic arrangement of the fishes; (iii) fossil mammals and reptiles and, secondarily, the osteology of living forms belonging to the same groups.
		Cuvier's papers on the Mollusca began appearing as early as 1792, but most of his memoirs on this branch were published in the Annales du museum between 1802 and 1815; they were subsequently collected as Mémoires pour servir de l'histoire et a l'anatomie des mollusques, published in one volume at Paris in 1817.
	en.wikipedia.org /wiki/Georges_Cuvier (1368 words)

	M30.htm
		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.
		There are only about 70 described living species of this class, which are small, worm-like molluscs that live buried head down in the sea floor.
	www.meer.org /M30.htm (767 words)

	Octopus Phylum Mollusca - Forces of Nature
		The octopus phylum mollusca is a soft-bodied marine animal having eight, a bag shaped body, and is not covered with shell.
		The octopus phylum mollusca is often called “the devilfish” — as he suctions all this preys into the two rows of suction discs.
		The octopus phylum mollusca is considered a carnivorous and lures their prey including the smaller species of crustaceans, clams and other bivalves by wiggling the tip of its arm like a worm and then strategically grabbing and sucking them with their tentacles.
	www.forces-of-nature.net /topics/molluscum/Octopus_Phylum_Mollusca.htm (724 words)

	Mollusca in Germany - snails, clams and malacology
		Mollusca in Germany - snails, clams and malacology
		Here you can find information about malacology (research on mollusks), mollusks (mollusca) and conchology (study of the molluscan shells).
		Members of the mollusca are snails and slugs (gastropods, Gastropoda), clams and mussels (Bivalvia), squids and octopuses (Cephalopoda), chitons (Polyplacophora),
	www.mollusca.net (170 words)

	Mollusca. The Columbia Encyclopedia, Sixth Edition. 2001-05 (Site not responding. Last check: )
		The digestive tract of the Mollusca is complex.
		The foregut region consists of an esophagus and a mouth cavity, which contains a toothed belt called the radula, found in almost all mollusks and peculiar to the phylum.
		This class, containing over 35,000 living and 15,000 fossil gastropod species, comprises the largest class of Mollusca, and includes the limpets, top shells, periwinkles, slipper shells, snails, slugs, sea hares, abalones, nudibranches, or sea slugs, and sea butterflies.
	www.bartleby.com /65/mo/Mollusca.html (1878 words)

	MUSSEL Project \| About the Unionoida
		Mollusca: Bivalvia, the Higher Classification of the Unionoida.
		Scaphopods are especially interesting in the context of bivalve evolution because the traditional classification of the Mollusca has suggested that Scaphopoda and Bivalvia might be closely related.
		Just as the Mollusca can be divided into 7 classes (or more, according to some authorities), the Bivalvia can also be subdivided to recognize major groups within the class.
	clade.acnatsci.org /mussel/m/about/mollusca.html (821 words)

	Mollusca
		Mollusca: Anatomical Features - Anatomical Features Although highly diverse, all members of the phylum share certain general...
		Mollusca: Class Scaphopoda - Class Scaphopoda This small class of marine mollusks includes 200 species of burrowing animals...
		Mollusca: Class Cephalopoda - Class Cephalopoda This class contains the cephalopods, animals commonly known as squid, cuttlefish,...
	www.factmonster.com /ce6/sci/A0833641.html (219 words)

	Mollusca
		Bianchi, G. Study of the demersal assemblages of the continental shelf and upper slope of Congo and Gabon, based on the trawl surveys of the RV 'Dr. Fridtjof Nansen': Marine Ecology Progress Series 85(1-2) 1992: 9-23, Illustr.
		The Late Cenozoic Ampullariidae (Mollusca, Gastropoda) of the Albertine Rift Valley (Uganda-Zaire): Hydrobiologia 316(1), December 1 1995: 1-32, Illustr.
		The Late Cenozoic Viviparidae (Mollusca, Gastropoda) of the Albertine Rift Valley (Uganda-Congo).
	diglib1.amnh.org /resources/bibliography/bibliographies/mollusca.htm (2632 words)

	Wildlife of Sydney - Overview of molluscs - Mollusca
		Wildlife of Sydney - Overview of molluscs - Mollusca
		Mollusca means 'soft-bodied' and, although some have developed a tough shell, they are all soft on the inside.
		The main groups found in Sydney are gastropods, bivalves, cephalopods, chitons, and also a minor group, the aplacophorans or spicule worms.
	www.faunanet.gov.au /wos/group.cfm?Group_ID=5 (172 words)

	[No title] (Site not responding. Last check: )
		Although extremely diverse, the phylum is united by a common ground plan of anatomic and morphologic similarities.
		One of the distinctive characteristics of the phylum is the soft internal body which is contrasted by the generally hard-shelled exterior (Hickman, 1961).
		Also well developed in the Mollusca are the digestive, circulatory, respiratory, excretory, nervous, and sensory systems.
	www.cox-internet.com /coop/molluscaoview.html (1577 words)

	General Biology (Course for Biology Majors) (Site not responding. Last check: )
		The Phylum Mollusca, totalling about 130,000 species, is a diverse group of soft-bodied, unsegmented animals.
		Most molluscs share certain characteristics, such as a muscular foot which may be modified into tentacles, a mantle that encloses gills or lungs, a tongue-like feeding organ with teeth capable of boring into food, and some may have some form of shell, either internal or external, made of calcium carbonate.
		This is the largest class within the Phylum Mollusca, making up about 80% of the total number of species.
	www.biology.missouri.edu /courses/Bio10/Mollusca.html (155 words)

	mollusca - definition by dict.die.net
		Mollusca n : gastropods; bivalves; cephalopods; chitons [syn: Mollusca, phylum Mollusca]
		They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve.
		Note: Formerly the Brachiopoda, Bryzoa, and Tunicata were united with the Lamellibranchiata in an artificial group called Acephala, which was also included under Mollusca.
	dict.die.net /mollusca (111 words)

	Mollusca - EvoWiki (Site not responding. Last check: )
		The molluscs (British spelling) or mollusks (American spelling) are the large and diverse phylum Mollusca, which includes a variety of familiar animals well-known for their decorative shells or as seafood.
		These range from tiny snails, clams, and abalone to squid, cuttlefish and the octopus (which is considered the most intelligent invertebrate).
		Many molluscs have their mantle produce a calcium carbonate external shell and their gill extracts oxygen from the water and disposes waste.
	wiki.cotch.net /index.php/Mollusk (455 words)

	Mollusca of Thasos
		Mylonas (1984) provides an interesting account of the non-marine Mollusca of the Aegean islands (although Thásos is not included), in which he highlights the changes brought about in the composition of island snail faunas by Man’s activities.
		The first survey of terrestrial molluscs on Thásos appears to be that of Boettger (1907) and this was extended by Urbanski (1960) to give a list of 22 species for the island.
		Meanwhile, Angelov (1959) investigated the freshwater Mollusca in 1942.
	thasos.users.btopenworld.com /mollusca.htm (1155 words)

	Oceanlink \| marine sciences education and fun
		All shells of animals in the phylum mollusca (snails, oysters, clams, etc.)are composed of basically the same materials.
		All cephalopods possess a pair of very strong, beak-like jaws located in a ball of muscle (known as the buccal mass) between the bases of their arms or tentacles.
		A: he Cephlapods from which the octopi are a part of tend to eat crustaceans, other molluscs (cephlapods are from the phylum mollusca) and fishes.
	oceanlink.island.net /ask/mollusca.html (12249 words)

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