1. In Acanthocephalans, performance analysis of attachment is available only for …

2. Acanthocephalans have complex life cycles, involving at least two hosts

3. A decrease in abundance with host age was demonstrated in other acanthocephalan species.

4. One specimen of the acanthocephalan Pomphorhynchus bulbocolli was noted in each of two mooneye.

5. These acanthocephalans were most numerous and attained maximum development in late spring.

6. Eighteen of the recoveries represent new host records (11 digeneans, 5 nematodes, 2 acanthocephalans).

7. Observations made on this worm indicate that the structure follows the general pattern described for other species of acanthocephalans.

8. Acanthocephalans use their retractable and invaginable proboscis to attach to the intestine of their host.

9. Functional inference on the attachment of Acanthocephalans has generally been drawn directly from morphology

10. All Acanthocephalans are endoparasitic, living in two or three marine or terrestrial vertebrates during their

11. Protozoans, monogeneans, digeneans, cestodes, nematodes, acanthocephalans, and a crustacean and a molluscan species occurred in the fish.

12. Acanthocephalans are also found in humans and primates, causing a common zoonotic infection called "human Acanthocephaliasis".

13. A number of parasitic trematodes, acanthocephalans, nematodes and cestodes have been reported from lake sturgeon (Harkness and Dymond 1961).

14. Such seasonality has been previously observed for acanthocephalans in bodies of water which freeze, as does the Bay of Quinte.

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

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

17. Acalyculate acamarian acamprosate acanaloniid acanaloniid planthoppers acantha acanthaceous acanthads acanthamebiasis Acanthamoeba Acanthamoeba keratitis acanthamoebiasis acanthamoebosis acanthi acanthite acanthocephalans acanthocephales acanthocephaliasis:

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

19. The acanthocephalan Echinorhynchus salmonis showed a marked seasonality of occurrence in the yellow perch Perca fluviatilis in the Bay of Quinte, Lake Ontario.

20. The occurrence of acanthocephalans of the genus Neoechinorhynchus Stiles and Hassall, 1905 in Vietnamese waters is reported for the first time.

21. Only one acanthocephalan, Mediorhynchus grandis, and three blood protozoa were found. Two protozoa, Parahaemoproteus (= Haemoproteus) orizivora and Plasmodium vaughani, are new host records.

22. What does Acanthocephalan mean? Any of a phylum (Acanthocephala) of intestinal worms, lacking a digestive tract and having a proboscis bearing rows of t

23. Patterns of trunk spine growth in two Congeneric species of acanthocephalan: investment in attachment may differ between sexes and species - Volume 139 Issue 7 - JESÚS S

24. 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.

25. These included the acanthocephalan Echinorhynchus gadi previously unreported from herring in the northwestern Atlantic and the monogenean Gyrodactyloides andriaschewski herein described from herring for the first time.

26. Acanthocephali usually occurred in the syncytium of infected males and females, but also occurred in the pseudocoelom of some female acanthocephalans with damaging effects on ovarian balls (Figs

27. Mysis relicta has been identified as an intermediate host of the acanthocephalan Echinorhynchus leidyi (Van Cleave, 1924) Golvan, 1969 in four of eight lakes examined in northwestern Ontario.

28. 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.

29. In the Austrian sector of the Danube, 5 parasite species are registered: infusoria Trichodina sp., parasitic crustaceans Ergasilus sieboldi, trematodes Diplostomum sp. and N. skrjabini, and also acanthocephalans Acanthocephalus lucii.

30. Other parasites of the Wood Turtle include trematodes, an acanthocephalan, caddisfly larvae (an epibiont), and the flesh fly, Sarcophagus spp., which may parasitize eggs and hatchlings (Foscarini, 1994; Walde, 1998; Smith, 2002).

31. The lemnisci of acanthocephalans are enigmatic organs which, except for those of adult Moniliformis dubius and Octospinifer macilentus, have not been described on the basis of examination by electron microscopy.

32. The armed proboscis of acanthocephalans may cause localized damage to the intestine; adults of some species normally attached to the intestinal lining may penetrate the intestine and invade visceral organs.

33. The values are compared to values obtained from other gutless parasitic helminths and from the free-living rotifers which are presumably to be regarded as closely related to the acanthocephalans.

34. Acanthocephalan [ ə-kăn′thə-sĕf ′ə-lən ] Any of various, mostly small worms of the phylum Acanthocephala that live parasitically in arthropods as juveniles and in the intestines of vertebrates (especially fish) as adults.

35. We predicted that the intensity of the acanthocephalan Polymorphus phippsi (Kostylev, 1922) should be positively related to the intake of intermediate hosts and that the intake of such prey should be negatively related to body condition.

36. Seasonal population dynamics and maturation of the acanthocephalan Neoechinorhynchus pungitius from brook stickleback (Culaea inconstans) were investigated. Stickleback were collected monthly at Sioux Creek, Wisconsin from April 1981 to May 1982 (excluding December, January, and February).

37. Acanthocephalans, also known as spiny-headed or thorny-headed worms, are necrotrophic worms that live as adults exclusively in the vertebrate's small intestine and exhibit an indirect life cycle, which utilizes an arthropod intermediate host

38. In addition, the nematodesGongylonema pulchrum, Hyostrongylus rubidus, Gnathostoma hispidum, Oesophagostomum sp., andTrichinella sp., the acanthocephalan speciesMacracanthorhynchus hirudinaceus, the intestinal flukeEchinochasmus perfoliatus (Trematoda) and the larval stage (Cysticercus tenuicollis, Echinococcus hidatidosus) of two tapeworm species (Taenia hydatigena, Echinococcus granulosus) (Cestoda) were recorded.

39. Darkfield Digital Image 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.However, Acanthocephalans have succeeded by infiltrating niches within every …

40. We examined the hypothesis that Steller's eiders, Polysticta stelleri (Pallas, 1769), in good body condition avoided nutritious and abundant prey that were intermediate hosts of acanthocephalans, while birds in poor condition accepted the long-term costs of parasitism to minimize the short-term risk of starvation.

41. In addition to A. abstrusus, Eucoleus aerophilus (16.7%; 1–9) was isolated from the lungs, and Toxocara cati (83.3%; 2–33), Ancylostoma tubaeforme (44.4%; 1–20), Dipylidium caninum (83.3%; 1–164), Joyeuxiella pasqualei (11.1%; 1–3) and one specimen of an acanthocephalan (5.5%) were recovered from the gastrointestinal tract.

42. Acanthocephala (Greek ἄκανθος, akanthos, thorn + κεφαλή, kephale, head) is a phylum of parasitic worms known as Acanthocephalans, thorny-headed worms, or spiny-headed worms, characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host

43. New Latin Acanthocephala, taxon that includes the spiny-headed worms (from Greek ákantha "thorn, prickle, spine" + New Latin -o- -o- + -cephala, neuter plural of -cephalus "having a head of a given sort," borrowed from Greek -kephalos, derivative of kephalḗ "head") + -an entry 1 — more at acanthus, cephalic Learn More about Acanthocephalan

44. A wide variety of parasites were found in rodent hosts, including protozoa—Giardia sp. (n = 8), Cryptosporidium sp. (n = 1), Entamoeba sp. (n = 8), Trichomonadida (n = 4), Isospora sp. (n = 1), trematodes (Echinostoma sp.; n = 3), cestodes—Hymenolepisnana (n = 1), Hymenolepisdiminuta (n = 3), Hymenolepis sp. (n = 2), Taeniataeniaeformis-Larven (n = 4), Catenotaenia sp. (n = 1), Taenia sp. (n = 1), nematodes—Heterakisspumosa (n = 4), Heterakis sp. (n = 1), Aspiculuristetraptera (n = 2), Capillariahepatica (n = 2), Capillaria sp. (n = 3), Syphacia sp. (n = 2), Strongyloides sp. (n = 10), Trichostrongylus sp. (n = 2) and Trichuris sp. (n = 1)—and acanthocephalans (Moniliformismoniliformis; n = 2).