
	Where results make sense

Topic: Acanthocephala

Related Topics

Digenea

Hirudinea

Nemertea

Chaetognatha

Cestoda

Nematoda

Trematoda

Priapulida

Animal

West Indian Manatee

Onychophora

Rotifera

Rhyncophthirina

Annelida

Strepsiptera

In the News (Mon 9 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Phylum Acanthocephala
		Acanthocephala not noticed until beginning of the 18th century, not distinguished until Koelreuther (1771) proposes the name Acanthocephala.
		Position of Acanthocephala was very uncertain; placed among flatworms, roundworms, chaetognatha, and finally lumped into the Aschelminthes.
		Hyman, L. The Invertebrates: Acanthocephala, Aschelminthes, and Entoprocta.
	www.rtis.com /nat/user/elsberry/taxa/acanth.htm (1051 words)

	RLB Profile
		(Acanthocephala: Neoechinorhynchidae) from the sharpfin chubsucker, Erimyzon tenuis, of Louisiana and Mississippi.
		Paulisentis missouriensis Keppner 1974 (Acanthocephala) in creek chubs, Semotilus atromaculatus, of southeastern Nebraska.
		(Acanthocephala: Echinorhynchidae) from the stippled darter, Etheostoma punctulatum (Agissiz), in Northeastern Oklahoma.
	facstaff.uwa.edu /rbuckner/RLBProfile.htm (363 words)

	Acanthocephala - Wikipedia, the free encyclopedia
		The most notable feature of the acanthocephala is the presence of an anterior, protrudible proboscis that is usually covered with spiny hooks (hence the common name: thorny headed worm).
		Phylogenetic analysis of the 18S ribosomal gene has revealed that the Acanthocephala are most closely related to the rotifers, or may even belong in that phylum.
		The earliest recognisable description of Acanthocephala - a worm with a proboscis armed with hooks - was made by Italian author Francesco Redi (1684).
	en.wikipedia.org /wiki/Acanthocephala (1416 words)

	Florida Nature: Acanthocephala declivis - Leaf-footed Bug
		Acanthocephala declivis - This leaf-footed bug measured 34mm from the tip of its tylus (pointy projection on the head, between the antennae) to the end of its abdomen.
		Acanthocephala declivis - This is a very close-up shot of the same leaf-footed bug as in the above photo.
		Acanthocephala declivis - This is a frontal view of the same leaf-footed bug as in the above photo.
	www.floridanature.org /species.asp?species=Acanthocephala_declivis (210 words)

	[No title]
		The characters used to construct the phylogenetic hypotheses of the Acanthocephala are DNA sequence data from the nuclear genome.
		The word acanthocephala means "thorny head" and refers to the ubiquitous presence of a retractable proboscis armed with recurved hooks.
		The conclusion from this relationship is that the Acanthocephala appear to have evolved from free-living rotifers.
	www.inhs.uiuc.edu /chf/pub/surveyreports/nov-dec96/acanth.html (588 words)

	Nuova pagina 2
		Occurrence of larval Acanthocephalus anguillae (Acanthocephala) in the Asellus aquaticus (Crustacea: Isopoda) from the River Brenta.
		Ultrastructure of spermiogenesis and spermatozoa of Leptorhynchoides plagicephalus (Acanthocephala, Palaeacanthocephala), a parasite of the sturgeon Acipenser naccarii (Osteichthyes, Acipenseriformes).
		Acanthocephala exhibit considerable uniformity of structure and similarity in life cycles and reproductive processes.
	web.unife.it /convegni/acanthocephala-parasites-of-fish (2269 words)

	Acanthocephala -- Encylopedic Reference of Parasitology
		Adult members of the Acanthocephala are highly specialized heterosexual, intestinal parasites that take up nutrition parenterally since they have no intestine.
		The syncytial tegument of the Acanthocephala is delimited by a plasma membrane carrying a filamentous
		Uniformly in all systematic groups of the Acanthocephala, the close tegumetal surrounding of the hooks is rich in lipid droplets, mitochondria and rough (
	parasitology.informatik.uni-wuerzburg.de /login/n/h/0008.html (7254 words)

	Parasitology: Past Papers
		The Acanthocephala were not recognised until beginning of the 18th century, and were not distinguished until Koelreuther (1771) proposed the name Acanthocephala.
		The Acanthocephala are all endoparasites and have no gut at any stage of their life cycle.
		The Acanthocephala show cell constancy or eutely, that is, members of the same species always have the same number of cells in their different organ systems.
	www.aber.ac.uk /~mpgwww/Edu/MonoAcan/MoAcaTxt.html (2697 words)

	Parasites, infections and diseases of fishes in Africa: An update
		Acanthocephala are readily recognised by their evaginable proboscis crowned with several rows of recurved hooks.
		Life histories and intermediate hosts of acanthocephala of African fish are at present unknown.
		The occurrence of Pallisentis basiri Farooqi (Acanthocephala) in the liver of Trichogaster chuna (Ham.).
	www.fao.org /docrep/008/v9551e/V9551E17.htm (969 words)

	Olympus MIC-D: Darkfield Gallery - Acanthocephala (Spiny-Headed Worm)
		Members of the phylum Acanthocephala are entirely endoparasitic, but when compared to other invertebrate parasites such as the roundworms (phylum Nematoda) and tapeworms (phylum Platyhelminthes, class Cestoda), they are relatively rare.
		The spiny-headed worms received their common name in 1771, as a literal translation of the Greek roots for Acanthocephala (acantho = spiny, cephala = head), based on the characteristic eversible spiky proboscis at the anterior end.
		As an attachment organ, the spiny proboscis is outfitted with a hydraulic system for eversion, in the form of specialized fluid-filled glands, known as lemnisci, and spikes that function as anchoring hooks.
	olympusmicro.com /micd/galleries/darkfield/acanthocephalaadultlow.html (412 words)

	Revista Brasileira de Biologia - Recent Studies on Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: ... (Site not responding. Last check: 2007-10-28)
		The helminth was identified as Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae).
		Palavras-chave: Acanthocephala, Neoechinorhynchus curemai, Prochilodus lineatus, Minas Gerais, Brasil.
		AMIN, O. M., 1987, Key to the families and subfamilies of acanthocephala with the erection of a new class (Polyacanthocephala) and a new order (Polyacanthorhynchida).
	www.scielo.br /scielo.php?script=sci_arttext&pid=S0034-71082000000400019&lng=en&nrm=iso&tlng=en (1847 words)

	Best of the Web - What's New in Science For 10/29/2005
		Acanthocephala of Terrestrial Vertebrates of the USSR Fauna - Contains information of this publication by Khoklova, IG.
		Severe Moniliformiasis (Acanthocephala: Moniliformidae) in a Gray Squirrel, Sciurus Carolinensis, fr - Contains an abstract of this article by J Singleton, et.
		Digenea and Acanthocephala of Elasmobranch Fishes from the Southern Coast of Brazil - Provides information on the mechanics and results of this study by Marcelo Knoff et.al.
	botw.org /new/Science/10292005.cfm (3986 words)

	Principles of Parasitism: Glossary (Site not responding. Last check: 2007-10-28)
		the larval stage of Acanthocephala that precedes the adult; it is usually encysted.
		one or two thin sacs arising at the base of the proboscis receptacle of Acanthocephala and extending to near the genital pore; the reproductive organs are enclosed.
		in Cestoda, a region of active cell division immediately posterior to the scolex, from which new proglottids are formed; in Acanthocephala, the region between the most posterior hook of the proboscis and the proboscis sheath.
	www2.biology.ualberta.ca /parasites/ParPub/text/text/glossar1.htm (3635 words)

	acanthocephala - Ask.com Web Search
		Acanthus - thorn Kephale - head) is a phylum of parasitic worms, characterised by the presence of an evertable proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host.
		An introduction to the biology, classification and ecology of Spiny-headed Worms the phylum Acanthocephala...
		Outline of the biology of Acanthocephala, including their features, reproduction and life cycle, ecology, and classification.
	search.ask.com /web?q=acanthocephala (185 words)

	Brazilian Journal of Biology - Prevalence and histopathology of Neoechinorhynchus curemai Noronha, 1973 ... (Site not responding. Last check: 2007-10-28)
		Severe inflammatory reaction at the submucosa, displacement of their sheaf, associated with oedema and mononuclear and eosinophilic infiltration were observed.
		AMIN, O. M., 1986, Acanthocephala from lake fishes in Wisconsin: host and seasonal distribution of species of the genus Neoechinorhynchus Hamann, 1892.
		AMIN, O. and VIGNIERI, J. C., 1986, Acanthocephala from lake fishes in Wisconsin: Numerical and structural-functional relationships of the giant nuclei in Neoechinorhynchus cylindratus (Neoechinorhynchidae).
	www.scielo.br /scielo.php?script=sci_arttext&pid=S1519-69842001000300022&lng=es&nrm=iso&tlng=en (1783 words)

	Dorlands Medical Dictionary
		In some systems of classification, they are considered to be a class of the phylum Nemathelminthes.
		(ə-kan”tho-sef´ə-ləs) pertaining to or caused by worms of the phylum Acanthocephala.
		(ə-kan”tho-sef´ə-ləs) a genus of worms of the phylum Acanthocephala; some species are parasitic in fish.
	www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_a_04zPzhtm (1562 words)

	rotacanth
		The most accepted morphological analysis places Acanthocephala as a sister group to Rotifera, although other studies have placed Acanthocephala as a sister taxon to Bdelloidea or Seisonidea.
		Combining molecular and morphological analyses of Bilateria leads to a tree with Platyhelminthes, Rotifera, Acanthocephala and Gnathostomulida (and probably Gastrotricha) as a sister group to the annelid-mollusc lineage of the Spiralia (Lophotrochozoa).
		The Rotifera + Acanthocephala clade, Bdellodea + Acanthocephala clade, and the Acanthocephala clade were all supported by decay indices greater than 20.
	chuma.cas.usf.edu /~garey/rotacanth.html (528 words)

	Publisher description for Library of Congress control number 84028497
		A knowledge of this phylum of parasitic worms is essential for helminthologists and instructive for all research workers investigating the principles of parasitism.
		Each of the chapters is written by a specialist on the biology of the Acanthocephala.
		The three indices (parasite, author and subject) and the comprehensive list of over a thousand references help the reader to use this major source of reference on a fascinating group of parasites.
	www.loc.gov /catdir/description/cam031/84028497.html (181 words)

	[No title]
		In this chapter we describe a few species of other groups of worms, which occasionally infect human.
		All members of the Phylum Acanthocephala are parasites.
		They were previously considered as a group of Nemathelminthes but, because of their different body structure, they are now recognized as a separate phylum.
	mywebpages.comcast.net /fredarfaa/acanta.htm (1701 words)

	[No title]
		In order to provide a basis for further elucidating the phylogenetic relationships within the Acanthocephala, we herein describe ultrastructure and overall organization of the ligament sac and efferent duct system in females of Paratenuisentis ambiguus (Eoacanthocephala, Neoechinorhynchida).
		The uterine bell consists of two contractile binucleate syncytia (bell wall syncytium, lateral pocket syncytium), two pairs of contractile cells (lappet cells, uterine bell retractors) and three pairs of noncontractile cells (median cells).
		The sheathing syncytium and median dorsal cell belong to the basal pattern (sensu ground pattern) of a palaeacanthocephalan subclade termed the Echinorhynchus-group in the present study.
	www.uni-mainz.de /FB/Biologie/Anthropologie/Acta_Zoologica2003.doc (296 words)

	Introduction to the "Aschelminth" Phyla
		Acanthocephala -- spiny-headed parasitic worms; about 1150 species known
		Body cavities develop in several different ways and perform many different functions within the animal kingdom.
		A number of aschelminths are parasitic, including the Acanthocephala, which parasitize vertebrates; the Nematomorpha, which parasitize insects and other arthropods; and the Nematoda, which include parasites of plants and animals as well as many non-parasitic, free-living species.
	www.ucmp.berkeley.edu /aschelminthes/aschelminthes.html (941 words)

	Identifyinginsects (Heteroptera) beyond Family
		Genus: Species: In this case, there is only the genus Acanthocephala Laporte in the tribe Acanthocephalini in Florida.
		Therefore, our job becomes easier, and all that is left to do is to determine the species using a species key.
		A Western species, Acanthocephala thomasi (Uhler) is known from Arizona, California, and Texas.
	insectclass.ifas.ufl.edu /beyond_family.htm (650 words)

	Institute of Anthropology - Publications
		Holger Herlyn, Nadia Martini, Ulrich Ehlers (2001) Organisation of the praesoma of Paratenuisentis ambiguus (Van Cleave, 1921) (Acanthocephala: Eoacanthocephala), with special reference to the lateral sense organs and musculature.
		Nina Hehn, Ulrich Ehlers, Holger Herlyn (2001) Ultrastructure of the acanthella of Paratenuisentis ambiguus (Acanthocephala).
		Holger Herlyn (2000) Zur Ultrastruktur, Morphologie und Phylogenie der Acanthocephala.
	www.uni-mainz.de /FB/Biologie/Anthropologie/350_ENG_HTML.php (371 words)

	Acanthocephala Review (Site not responding. Last check: 2007-10-28)
		The Acanthocephala are an unusual group of organisms, with characteristics which do not make phylogenetic relationships very clear.
		The name means "Spiny headed worms", which refers to the spines on the proboscis, as shown in the following figure:
		There are numerous examples of parasite-induced changes in intermediate host behavior, which make the intermediate host more susceptible by the definitive host.
	www.cbu.edu /~seisen/AcanthocephalaReview.htm (80 words)

	IngentaConnect Pomphorhynchus Spec. (Acanthocephala) Uses the Invasive Amphipod ... (Site not responding. Last check: 2007-10-28)
		(Acanthocephala) Uses the Invasive Amphipod Chelicorophium Curvispinum (G. Sars, 1895) As An Intermediate Host in the River Rhine
		Acanthocephala of the genus Pomphorhynchus were found to use the very successful PontoCaspian invader Chelicorophium curvispinum (G. Sars, 1895) as an intermediate host in the rivers Waal and IJssel, two main branches of the river Rhine in the Netherlands.
		(Acanthocephala) Uses the Invasive Amphipod Chelicorophium Curvispinum (G. Sars, 1895) As An Intermediate Host in the River Rhine" title="post to CiteUlike">Post to CiteUlike
	www.ingentaconnect.com /content/brill/cr/2003/00000076/00000002/art00011 (210 words)

Try your search on: Qwika (all wikis)