Acanthocephala

Also known as acanthocephalans, spiny-headed worms, thorny-headed worms, acanthocephalan

Acanthocephala (Greek , '''' 'thorn' + , '''' 'head') is a group 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. Acanthocephalans have complex life cycles, involving at least two hosts, which may include invertebrates, fish, amphibians, birds, and mammals. About 1,420 species have been described.

AI overview

Acanthocephala is a group of parasitic worms with a distinctive spiny, hook-like head that they use to attach to and pierce the intestines of their hosts, which can range from insects to mammals. These worms have complicated life cycles that require at least two different hosts to complete, and scientists have identified about 1,420 different species so far.

AI-generated from the Wikipedia summary — may contain errors.

Species

acanthocephalans

Phylum

PhylumAcanthocephala

Habitatmarine, brackish, freshwater

Observations44,796

目原棘头虫目 Archiacanthocephala 古棘头虫目 Palaeacanthocephala 始棘头虫目 Eocanthocephala 棘头动物门（學名：Acanthocephala）是动物界的一个门。是一类身体前端有吻，吻上有钩刺的假体腔动物。棘头动物属于寄生动物，吻上的钩刺用来抓住牠的寄主肠壁。牠们具有复杂的生命周期，涉及到若干寄主，包括无脊椎动物、鱼类、两栖类、鸟类和哺乳类。大约只有700种。棘头动物门分为3个目：原棘头虫目（Archiacanthocephala）：例如巨吻棘头虫、念珠棘头虫（Moniliformis）等。古棘头虫目（Palaeacanthocephala）：例如鱼棘头虫（Echinorhynchus）、鳞棘头虫（Leptorhynchus）等。始棘头虫目（Eocanthocephala）：如新棘头虫（Neoechinorhynchus）。规范控制 AAT: 300310240 NDL: 00566813 這是與無脊椎動物相關的小作品。你可以通过编辑或修订扩充其内容。查论编后鞭毛生物:动物现存门分类表域古菌细菌真核生物 (界植物 Hacrobia（英语：Template:Hacrobia）不等鞭毛类（英语：Template:Heterokont）囊泡虫有孔虫（英语：Template:Rhizaria）古虫变形虫（英语：Template:Amoebozoa）动物真菌) 侧生动物多孔动物门钙质海绵纲寻常海绵纲六放海绵纲扁盘动物门丝盘虫中生动物直泳动物门菱形动物门单胚动物门真后生动物辐射对称动物栉水母动物门刺胞动物门珊瑚纲水螅纲钵水母纲立方水母纲十字水母纲（英语：Stauromedusae）多足动物纲（英语：Polypodiozoa）黏体动物两侧对称动物异无腔动物无腔动物门异涡动物门肾管动物（英语：Nephrozoa）原口动物未命名基群毛颚动物门蜕皮动物环神经动物（英语：Cycloneuralia）有棘动物（英语：Scalidophora）动吻动物门铠甲动物门鳃曳动物门线虫动物线虫动物门线形动物门泛节肢动物有爪动物门缓步动物门节肢动物门螺旋動物有颚动物（英语：Gnathifera (clade)）合皮动物（英语：Syndermata）轮形动物门棘头动物门地位未定尾盘动物门? 摇轮虫颚胃动物门微颚动物门环口动物门扁轮动物（英语：Platytrochozoa）吮食动物（英语：Rouphozoa）扁形动物门腹毛动物门冠轮动物担轮动物纽形动物门软体动物门环节动物门星虫动物门? 触手冠动物苔藓动物门内肛动物门腕足动物门帚虫动物门后口动物步带动物棘皮动物门半索

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Research

1,943 papers

The biology of the acanthocephala.ReviewAdvances in parasitology · 1973Nicholas WLDOI: 10.1016/s0065-308x(08)60195-5
Morphogenesis of the Acanthocephala.ReviewInternational journal for parasitology · 1987Schmidt GDDOI: 10.1016/0020-7519(87)90048-8
Description of Harpagorhynchus golvaneuzeti n. gen. n. sp. (Acanthocephala, Harpagorhynchinae n. sub-fam.) with a review of acanthocephalan parasites of soleid fishes in the Mediterranean Basin.ReviewParasite (Paris, France) · 2019Kvach Y, de Buron IDOI: 10.1051/parasite/2019012
Relationships between acanthocephala and their hosts.ReviewSymposia of the Society for Experimental Biology · 1975Crompton DW
Classification of the acanthocephala.Folia parasitologica · 2013Amin OMDOI: 10.14411/fp.2013.031
Host-parasite interactions in Acanthocephala: a morphological approach.ReviewAdvances in parasitology · 2000Taraschewski HDOI: 10.1016/s0065-308x(00)46008-2
Acanthocephala Species of Mammals in Türkiye and A New Species Record from Foxes.Turkiye parazitolojii dergisi · 2024Öztürk M, Umur ŞDOI: 10.4274/tpd.galenos.2023.92063
A review of the Arhythmacanthidae (Acanthocephala) with a description of Heterosentis hirsutus n. sp. from Cnidoglanis macrocephala (Plotosidae) in Australia.ReviewParasite (Paris, France) · 1999Pichelin S, Cribb THDOI: 10.1051/parasite/1999064293

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Wikidata facts

Image: C wegeneri.JPG

Show 3 more facts

Commons category: Acanthocephala
taxon name: Acanthocephala
taxon common name: Stekelsnuitwormen

Sources (3)

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~14 min read

Article

20 sections

Contents

History
Evolutionary history
Phylogeny
Morphology
Digestion
Proboscis
Size
Skin
Nervous system
Life cycles
Reproduction
Release
Host control
Effects on hosts
Economic impact
Human infections
See also
References
Further reading
External links

The Acanthocephala were long thought to be a discrete phylum. Recent genome analysis has shown that they are descended from, and should be considered as, highly modified rotifers. This unified taxon is sometimes known as Syndermata, or simply as Rotifera, with the acanthocephalans described as a subclass of a rotifer class Hemirotatoria.