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Topic: Thecosomata

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	Sea butterfly - Wikipedia, the free encyclopedia
		Sea butterflies, or flapping snails, are holoplanktonic mollusks (Mollusca, Gasteropoda), belonging to the suborder Thecosomata (Blainville, 1824).
		This term, however, is applied to the suborder Thecosomata as well as to the suborder Gymnosomata.
		Mollusks of the suborder Thecosomata have a shell, while the Gymnosomata lack a shell.
	en.wikipedia.org /wiki/Sea_butterfly (387 words)

	Sea angel
		Also known as gymnosomes, sea angels belong to the opisthobranchs, a subclass of Gastropoda (snails and slugs) which includes nudibranchs.
		The other order of pteropods, Thecosomata, are superficially similar but not closely related.
		They have larger, broader parapodia, most species retaining a shell, and are known commonly as sea butterflies.
	www.guajara.com /wiki/en/wikipedia/s/se/sea_angel.html (357 words)

	Rev. Bras. Zool. vol.20 no.2; Abstract: S0101-81752003000200028 (Site not responding. Last check: 2007-10-31)
		Thecosomata and Gymnosomata (Mollusca, Gastropoda) from Fernando de Noronha chain, Brazil
		The Mollusca Pteropoda from Fernando de Noronha Chain Northeastern Brazil were studied in order to know their taxonomy and distribution.
		: Brazil; Fernando de Noronha; Gymnosomata; Pteropoda; Thecosomata.
	www.scielo.br /scielo.php?pid=S0101-81752003000200028&script=sci_abstract&tlng=en (268 words)

	The Sea Slug Forum - Papers about Thecosomata
		I would like to receive papers about anatomy and systematics of the Thecosomata.
		Magenta, C., 1999 (Oct 2) Papers about Thecosomata.
		I have listed a couple of good books on pteropods in a reply to an earlier message from Eva Philipp which would be worth obtaining.
	www.seaslugforum.net /display.cfm?id=1391 (62 words)

	pteropod
		The name 'Pteropoda' is an obsolete (but quite convenient) indication for holoplanktonic molluscs belonging to the orders of Thecosomata and Gymnosomata.
		The species have in common that the original foot has developed into a pair of 'wings' (parapodia), increasing the animals' capacity of buoyancy and locomotion.
		The order Thecosomata is subdivided into two suborders, Euthecosomata and Pseudothecosomata.
	sites.waldonet.net.mt /ariewe/pteropod.htm (838 words)

	Rafting snails (Site not responding. Last check: 2007-10-31)
		These snails often live close to the ground in rather shallow water (for example in coral reefs), and if they get back to the ground, they creep around just like ordinary snails.
		Another group of snails, called Thecosomata, became exclusive swimmers and are part of the drifting plankton in the open sea.
		These snails developed two large, lateral cloths, which they can move just like butterflies move their wings.
	www.suite101.com /article.cfm/snails_shells/79517/1 (497 words)

	Chapter Psychics <i>to</i> Public of P by Webster's Dictionary (1913 Edition)
		A class of Mollusca in which the anterior lobes of the foot are developed in the form of broad, thin, winglike organs, with which they swim at near the surface of the sea.
		The Pteropoda are divided into two orders: Cymnosomata, which have the body entirely naked and the head distinct from the wings; and Thecosomata, which have a delicate transparent shell of various forms, and the head not distinct from the wings.
		An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; — called also Pterodactyli, and Ornithosauria.
	www.bibliomania.com /2/3/257/1207/23700/3.html (301 words)

	InfoHub - Tentaculites - A Baffling Invertebrate
		Some say that it should be classified as a Pteropod.
		[Note - Pteropods are gastropods of the suborder Thecosomata.]
		Tentaculites was an aquatic animal; it lived in inland seas.
	www.infohub.com /forums/printthread.php?t=5609 (233 words)

	Diacria trispinosa
		The following presentation is one featuring a member of one of the two holoplanktonic
		orders of opisthobranch molluscs (Thecosomata and Gymnosomata) featured on these pages.
		The featured animal is Diacria trispinosa, which is a thecosome belonging to the family Cavoliniidae.
	rfbolland.com /okislugs/diactris.html (360 words)

	Tube Anemone Larva eating Pteropod
		Click here to do a keyword search for images.
		: cnidarians, anthozoans, ceriantharia, thecosomata, cavoliniidae, thecosomes, pteropoda, pteropods, larvae, larval stages, zooplankton, predation, mesoplankton, meroplankton
		For Terrestrial Images visit our sister library by clicking on the flower below.
	www.imagequest3d.com /catalogue/larvalforms/pages/d066_jpg.htm (98 words)

	American Society of Limnology and Oceanography
		LINKING SPACE-TIME SCALES FROM INDIVIDUALS TO POPULATIONS USING PLANKTON BEHAVIOR
		Empirical and theoretical studies are used to make short-term predictions of abundance and distribution of the marine snail Limacina retroversa (Pteropoda, Thecosomata).
		Posture analysis of pteropods in still images taken by the VPR show a defined set of characteristic behaviors.
	aslo.org /albuquerque2001/673.html (190 words)

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