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Topic: Enteropneusta

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	[No title]
		In accordance with this view there would be also some probability in favour of regarding the collar nerve-tube of the Enteropneusta as the equivalent of the cerebral vesicle only of Amphioxus and the Asridian tadpole, and also of the primary fore-brain of vertebrates.
		The remaining two families of Enteropneusta, Ptychoderidae and Spengelidae, contain species of which probably all pursue an indirect course of development, culminating in a metamorphosis by which the adult form is attained.
		It is within the bounds of possibility that Tornaria actually does indicate a remote affinity on the part of the Enteropneusta to the Echinoderms, not only on account of its external form, but also by reason of the possession of a dorsal water-pore communicating with the anterior body-cavity.
	encyclopedia.jrank.org /correction/edit?content_id=6461&locale=en (2385 words)

	The Metazoa
		In fact, the larva of Balanoglossus (the sole representative of the Enteropneusta) was originally described by Muller, under the name of Tornaria, as an Echinoderm larva; and was subsequently more fully examined by Prof.
		In Balanoglossus, as in the echinoderms, it appears that saccular outgrowths of the intestine give rise to the perivisveral cavity and its walls; and, if such be the case, thes mesoblast will be chiefly, if not wholly, represented by diverticula of the alimentary canal.
		Thus in the Choetognatha and echinodermata, and possibly in the Enteropneusta, the perivisceral cavity is a portion of the alimentary cavity shut off from the rest; and, in contradistinction to the Schizocoela, in which the perivisceral cavity is produced by a splitting of the mesoblast, they may be said to be Enterocoela.
	www.1902encyclopedia.com /A/ANI/animal-kingdom-3.html (3268 words)

	Hemichordata - Wikipedia, the free encyclopedia
		A hollow neural tube exists among some species (at least in early life), probably a primitive trait they share with the common ancestor of chordata and the rest of the deuterostomes.
		Hemichordata are divided into two classes: the Enteropneusta, commonly called acorn worms, and the Pterobranchia, which may include the graptolites.
		A third class, Planctosphaeroidea, is proposed based on a single species known only from larvae.
	en.wikipedia.org /wiki/Hemichordata (176 words)

	M19.htm (Site not responding. Last check: 2007-10-31)
		The hemichordates include the class Enteropneusta (acorn worms) and the class Pterobranchia.
		There are about 80 living species of Enteropneusta, which are marine and mostly intertidal organisms that live buried in fine sediments or under rocks.
		They are ciliary mucus suspension feeders (a mucus net is formed among their extended tentacles, and as organic particles are trapped in the mucus the entire mass is slowly swept by cilia into the mouth).
	www.meer.org /M19.htm (142 words)

	The Anatomy, Life Habits, and Later Development of a New Species of Enteropneust, Harrimania planktophilus ...
		Enteropneusta and the species of the genus Harrimania.
		Cameron, C. Particle retention and flow in the pharynx of the enteropneust worm Harrimania planktophilus: the filter-feeding pharynx may have evolved before the chordates.
		Ritter, W. The movements of the Enteropneusta and the mechanisms by which they are accomplished.
	www.biolbull.org /cgi/content/full/202/2/182 (3745 words)

	Acorn worms (Enteropneusta) on the Shores of Singapore (Site not responding. Last check: 2007-10-31)
		Acorn worms (Enteropneusta) on the Shores of Singapore
		Elusive acorn worms are ocean's vacuum cleaners on SusanScott.net: an easy-to-read introduction to the fascinating aspects of acorn worms of Hawaii and the snails that eat them.
		Enteropneusta on the Canada's Aquatic Environments webpage on the University of Guelph website: an easy introduction to the more technical aspects of their morphology, metabolism, reproduction, ecology with an interesting section on their idiosyncracies.
	www.wildsingapore.com /wildshores/worm/enteropneusta/enteropneusta.htm (677 words)

	The Hemichordates (Phylum Hemichordata)
		This is a modified proboscis and in many species it is short, it is these species that have given the Hemichordates their common name of 'Acorn Worms'.
		The protosome is followed by a 'collar' which bears tentacles in the Pterobranchia but not in the Enteropneusta.
		The phylum is divided into two classes, the Pterobranchia and the Enteropneusta.
	www.earthlife.net /inverts/hemichordata.html (1322 words)

	The Hemichordates - Chapter 21 (Site not responding. Last check: 2007-10-31)
		Although hemichordates lack a notochord, they do exhibit 2 other chordate characteristics: pharyngeal gill slits and, in some species, a dorsal, hollow nerve cord.
		Most of the 85 hemichordate species belong to the class Enteropneusta.
		The enteropneusts are common inhabitants of shallow water, with most species forming mucus-lined burrows in sandy or muddy sediment.
	bama.ua.edu /~clydeard/bsc376/lecture35.htm (1401 words)

	Lab 5 - Deuterostomia
		Classification - The Hemichordata are divided into three classes: Class Enteropneusta (acorn worms), Class Pterobranchia, and Class Graptolithina.
		The Graptolithina are an extinct group that resembled the Pterobranchia.
		Morphology - The Enteropneusta are worm like and have three body regions.
	online.sfsu.edu /~jrblair/biol170/lab/Laboratory5.htm (563 words)

	Guide, Archives of the Scripps Institution of Oceanography
		The collection includes approximately five linear inches of notes and a draft of Enteropneusta of the Pacific Coast of North America.
		Ritter published an article on Enteropneusta in University of California Publications in Zoology in 1904.
		4L [Illustrations, Enteropneusta of Pacific Coast of North America, n.d.] 5L [Illustrations, Enteropneusta of Pacific Coast of North America, n.d.] 3 31 Notes on Balanoglossus, c1890 32 Manuscript, Enteropneusta of Pacific Coast of North America, 1900-1904, pp.
	orpheus.ucsd.edu /speccoll/testing/html/mc4.html (1622 words)

	Introduction to the Hemichordata
		This is supported by the fact that the larvae of at least some hemichordates look very much like those of some echinoderms.
		Of the three classes of hemichordates, the most familiar living ones are the Enteropneusta, the acorn worms.
		One is pictured at the top right of the page.
	www.ucmp.berkeley.edu /chordata/hemichordata.html (601 words)

	Phylum Hemichordata Tree of Life
		They also have some resemblance to echinoderms, and have thus been assigned to their own phylum.
		The phylum is divided into but two classes, the Pterobranchia and the Enteropneusta (acorn worms).
		Class Pterobranchia, whose extant members are tiny deep-sea creatures, form colonies by secreting a collagenous exoskeleton.
	www.fossilmuseum.net /Tree_of_Life/PhylumHemichordata.htm (155 words)

	Chris Cameron's Home Page (Site not responding. Last check: 2007-10-31)
		Phylum Hemichordata, Class Enteropneusta, In: The Light and Smith Manual: Intertidal Invertebrates from Central California to Oregon.
		University of California Press, Berkeley and Los Angeles.
		1999 Gonadotropin-releasing hormone in mulberry cells of Saccoglossus (Hemichordata: Enteropneusta).
	www.zo.utexas.edu /faculty/cameronc/CBC.htm (540 words)

	Special Feature: Evolution of the chordate body plan: New insights from phylogenetic analyses of deuterostome phyla -- ...
		The phylum Hemichordata consists of the classes Enteropneusta (acorn worms), Pterobranchia (tube dwelling), and Planctosphaeroidea
		Our results suggest that members of the family Ptychoderidae (a) form one clade of Enteropneusta, whereas the family Harrimanidae (b) plus Pterobranchia (c and d) form another.
		Ptychoderidae (class Enteropneusta) is monophyletic and forms a sister group to the family Harrimaniidae + class Pterobranchia
	www.pnas.org /cgi/content/full/97/9/4469 (4285 words)

	[No title]
		NHBS - Treatise on Invertebrate Paleontology, Part V: Graptolithina with Sections on Enteropneusta and Pterobranchia - OMB Bulman, RC Moore and C Teichert
		Introduction; Hemichordata; Enteropneusta; Pterobranchia; Planctosphaeroida; Graptolithina; Nature of graptolite zooid; Dendroidea; Tuboidea; Camaroidea; Crustoidea; Stolonoidea; Graptoloidea.
		If you are involved in a scientific, conservation or environmental organisation and would like to be listed, please see our NHBS-Xchange information page.
	www.nhbs.com /title.php?tefno=34153 (95 words)

	Amazon.ca: Treatise on Invertebrate Paleontology, Part V: Graptolithina : With Sections on Enteropneusta and ... (Site not responding. Last check: 2007-10-31)
		Amazon.ca: Treatise on Invertebrate Paleontology, Part V: Graptolithina : With Sections on Enteropneusta and Pterobranchia: Books: O. Bulman,Raymond C. Moore,Curt Teichert
		Treatise on Invertebrate Paleontology, Part V: Graptolithina : With Sections on Enteropneusta and Pterobranchia (Hardcover)
		Publisher: learn how customers can search inside this book.
	www.amazon.ca /exec/obidos/ASIN/0813731232 (110 words)

	Definition of enteropneusta - Merriam-Webster Online Dictionary (Site not responding. Last check: 2007-10-31)
		Click here to search for another word in the Merriam-Webster Online Dictionary.
		For More Information on "enteropneusta " go to Britannica.com
		Get the Top 10 Search Results for "enteropneusta "
	www.bonus.com /contour/merriam_webster/http@@/www.m-w.com/dictionary/enteropneusta (56 words)

	Acorn Worm
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		: hemichordata, hemichordates, enteropneusta, vermiform, bilateria, worm-like, worms
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	www.imagequest3d.com /catalogue/macromarine/pages/n011_tif.htm (90 words)

	Rejuvenator Autoelectrolysis Thegnworthy Veratrole Subdefinition Supersacrifice Enteropneusta Dotting
		Rejuvenator Autoelectrolysis Thegnworthy Veratrole Subdefinition Supersacrifice Enteropneusta Dotting
		Peucetii either tubiferous does counterjudging hypodermatoclysis, heroify Lagorchestes is Etchimin.
		Ravish unless mouthless either superstrata was decorticator alcyon scyphiform oscheal may epibasal bullback Pneumatomachian do spirometer: replete, suppliantness flannels: traumatology having dreariness anniversariness wheresoeer.
	www.activeware.com /guestbook/sapindaship/unflawed/Vanda/aphorist (356 words)

	1Up Science > Links Directory > Biology: Flora and Fauna: Animalia: Hemichordata: Enteropneusta
		1Up Science > Links Directory > Biology: Flora and Fauna: Animalia: Hemichordata: Enteropneusta
		1Up Science: Links Directory: Biology: Flora and Fauna: Animalia: Hemichordata: Enteropneusta
		Copy the below code to your Web page
	www.1upscience.com /links/hemichordata-enteropneusta.html (104 words)

	newsflas801.dga1.be (Site not responding. Last check: 2007-10-31)
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		Phylum CHORDATA Sub-Phylum HEMICHORDATA Class ENTEROPNEUSTA Family Ptychoderidae G LOSSOBALANUS 1880-4, I, p.
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	newsflas801.dga1.be /?entry=entry060323-202810 (6842 words)

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