thorny-headed worm
spiny-headed worm
acanthocephalan latin

However, when infected by a thorny-headed worm it becomes attracted toward light and swims to the surface.

By forcing it to swim to the surface, the thorny-headed worm makes it an easy target.

HOW do thorny-headed worms send their hosts to their doom?

Adult stages of tapeworms, thorny-headed worms and most flukes use this method.

Thorny-headed worms begin their life cycle inside invertebrates that reside in marine or freshwater systems.

This kind of psychopharmacology is how thorny-headed worms send their hosts to their doom.

Polymorphida are an order of thorny-headed worms (phylum Acanthocephala).

They may be called known as acanthocephales, thorny-headed worms, or spiny-headed worms.

There were a few thorny-headed worms (Acanthocephala spp) in the small intestines, but not many other gut parasites.

The thorny-headed worm family Polymorphidae contains endoparasites which as adults feed mainly in fish and aquatic birds.

Thus, it is thought that the thorny-headed worm physiologically changes the behavior of the Gammarus lacustris in order to enter its final host, the bird.

It is known as, "Giant Thorny-Headed Worm of swine".

Unlike baculoviruses, which go from caterpillar to caterpillar, thorny-headed worms need to live in two species: a gammarid and then a bird.

The foregoing strategies are used, variously, by larval stages of tapeworms, thorny-headed worms, flukes and parasitic roundworms.

Gammarus lacustris, a small crustacean that feeds near ponds and rivers, is one invertebrate that the thorny-headed worm may occupy.

It is thought that when Gammarus lacustris is infected with a thorny-headed worm, the parasite causes serotonin to be massively expressed.

Endoparasites known to infect wolves include protozoans and helminths (flukes, tapeworms, roundworms and thorny-headed worms).

Sarcocystis neurona killed 7 percent, and a seabird-borne intestinal parasite called Acanthocephalan peritonitis, or thorny-headed worm, killed 16 percent.

Acanthocephala (parasitic, thorny-headed worms) - The presence of mating plugs on the sides of Pomphorhynchus bulbocolli suggests traumatic insemination occurs in this species.

Thorny-headed worms rarely infect wolves, though three species have been identified in Russian wolves: Nicolla skrjabini, Macrocantorhynchus catulinus, and Moniliformis moniliformis.

Modern molecular phylogenetic studies demonstrate that this classic understanding of 'Rotifera' is incomplete (paraphyletic), because it omits a fourth clade of closely related organisms: the Acanthocephala, or thorny-headed worms.

The Acanthocephala or thorny-headed worms, or spiny-headed worms are characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host.

An adult spiny-headed worm also was found embedded in the intestine.

Acanthocephala, or the spiny-headed worms all of which are parasitic.

Other recorded internal parasites include the spiny-headed worm Prosthorhynchus transverses.

They may be called known as acanthocephales, thorny-headed worms, or spiny-headed worms.

In due course, spiny-headed worms will probably be placed in a taxonomic rank below phylum, such as sub-phylum or class.

Acanthocephala (spiny-headed worms)

They also include the Acanthocephala or spiny-headed worms, the Gnathostomulida, Micrognathozoa, and possibly the Cycliophora.

Internal parasites include the fluke Strigea strigis, the tape worm Paruternia candelabraria, several species of parasitic round worm and spiny-headed worms in the genus Centrorhynchus.

A variety of parasites, including large larval tapeworms and a spiny-headed worm, were found in the intestines of the male, potentially giving a clue about where these particular oarfish lived and fed.

The Acanthocephala or thorny-headed worms, or spiny-headed worms are characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host.

Because it superficially resembles the modern-day internal parasites known as the acanthocephalids or "spiny-headed worms," A. minor was once thought to be, or once thought to resemble the hypothetical free-living ancestor of acanthocephalids.

Bogue are host to a wide variety of parasites, ranging from metazoans such as Digenean flatworms, Acanthocephalan spiny-headed worms, nematode roundworms, isopod and copepod crustaceans and Myxozoan cnidarians to the unicellular dinoflagellate Ichthyodinium chabelardi, a parasite that is lethal to eggs developing in ovaries.

The most common intestinal parasite was an acanthocephalan (Neoechinorhynchu), but was found in less than 25% of adult population.

Even the Acanthocephalan worms.

Except for the aforementioned A. propinquus, another acanthocephalan, Telosentis exiguus, is very numerous.

Twenty-five helminths were identified: 9 trematodes, 3 cestodes, 12 nematodes, and 1 acanthocephalan. Seventeen of these are new host records.

One acanthocephalan occupied the haemocoel of a recently ingested amphipod (Gammarus lawrencianus), while two other specimens were free in the stomach.

Sarcocystis neurona killed 7 percent, and a seabird-borne intestinal parasite called Acanthocephalan peritonitis, or thorny-headed worm, killed 16 percent.

In the Black Sea the intermediate hosts of this acanthocephalan is the amphipod Apherusa bispinosa, in the coelom of which the cystacanthes are located.

Seven trematode, three nematode, two cestode, one acanthocephalan, one protozoan, and three acarina species were recovered from 171 muskrats (Ondatra zibethica) taken in Manitoba.

The endoparasites found in shrew-moles consist of twenty species of coccidian protozoans, at least five species of nematode, two species of trematode, and two species of acanthocephalan.

This modification of gammarid behavior by the acanthocephalan is thought to increase the rate of transmission of the parasite to its next host by increasing the susceptibility of the gammarid to predation.

Nine helminth species (four trematodes, one cestode, three nematodes, and one acanthocephalan) were found, eight from T. tyrannus and seven from T. verticalis. Six species were common to both hosts.

An inventory of the parasites inside the bodies of a number of lizards found three nematode species, Physaloptera lutzi, Parapharyngodon bainae, and Oswaldofilaria chabaudi, as well as an unidentified tapeworm and an acanthocephalan.

Cestodes, including Tetrabothrius laccocephalus, Tetrabothrius diomedea, Tetrabothrius filiformis, and metacestodes of Tetrabothrius sp., a strigeid trematode, Cardiocephaloides physalis, and an acanthocephalan, Corynosoma australe, occurred in the small intestine.

A total of 11 species of helminthes, including six species of digeneans, three species of nematodes, a species of cestode, and an acanthocephalan have been found in the stomach and intestines of T. fulvidraco:.

To insure that a fish will eat the amphipod, or flat-bodied crustacean, that the acanthocephalan occupies at one stage, its larva "addles the pigment of the amphipod, causing it to lose its cryptic gray coloration and turn brick red."