Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to acanthocephalan: phylum Acanthocephala


 (ə-kăn′thə-sĕf′ə-lən) also a·can·tho·ceph·a·lid (-lĭd)
[From New Latin Acanthocephala, phylum name : acantho- + Greek kephalē, head; see -cephalous.]

a·can′tho·ceph′a·lan adj.


(Animals) any of the parasitic wormlike invertebrates of the phylum Acanthocephala, the adults of which have a spiny proboscis and live in the intestines of vertebrates
(Zoology) of, relating to, or belonging to the Acanthocephala

spin′y-head`ed worm′

any of a small group of intestinal parasites of the phylum Acanthocephala, having a proboscis covered with hooks used for attachment.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.acanthocephalan - any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spinesacanthocephalan - any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines
worm - any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae
Acanthocephala, phylum Acanthocephala - phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms
References in periodicals archive ?
were primary parasites, but the authors also examined the trematode Bolbophorus confusus (encysted metacercariae in the body of the intermediate cyprinid hosts), and the acanthocephalan Pomphorhynchus bosniacus, a parasite of the intestines.
National Parasite Collection, Beltsville, Maryland: Oochoristica macallisteri, 87280; Physaloptera retusa, 87282; Spauligodon giganticus, 87281; oligacanthorhynchid acanthocephalan cystacanths, 87283.
We looked for phylogenetic patterns of altered host behavior in an acanthocephalan parasite-cockroach host system.
In general, in fish, the acanthocephalan life-cycle involves a definitive host and an intermediate host which could be an arthropod amphipod, ostracod or copepod (Tantalean et al.
Neither acanthocephalan nor trematode infections were recorded in the examined specimens.
The component parasite community of bullfrogs from this location consisted of three nematode species, six trematode species, and a single acanthocephalan (Table 1).
Almost all cases (five out of six) for which an increase of predation risk of infected intermediate hosts was shown concern aquatic crustaceans with marked color effects of their acanthocephalan parasites: Gammarus lacustris infected by Polymorphus paradoxus (Holmes and Bethel 1972, Bethel and Holmes 1977) or by Polymorphus minutus (Hindsbo 1972); Hyalella azteca infected by Corynosoma constrictum (Bethel and Holmes 1977); Gammarus pulex infected by Pomphorhynchus laevis (Kennedy et al.
Altered behavioural responses in intermediate hosts - an acanthocephalan parasite strategy.
acuminatus (Gonzalez and Hamann, 2007a, 2008); adults and larvae of trematodes, nematodes and acanthocephalan from S.
lamothei) and the acanthocephalan (Neoechinorhynchus golvani), both intestinal parasites, were recovered in adult stage.
In total, eight species of helminths (five nematodes, one acanthocephalan, and two cestodes) were found, and only one raccoon, an adult female, was free of intestinal parasites (Table 1).