Canalipalpata
Canalipalpata, also known as bristle-footed annelids or fan-head worms, is an order of polychaete worms consisting of 31 families such as the Serpulidae (tubeworms), Sabellidae (fanworms and feather duster worms), and Siboglinidae (beardworms) of the suborder Sabellida, and the Alvinellidae, a family of worms often associated with hydrothermal vents (though a number of Siboglinids also inhabit hydrothermal vents, like the giant tube worm Riftia pachyptila). Most canalipalpatans are considered to be tube worms, with some exceptions.
Species
Infraclass
- PhylumAnnelida
- ClassPolychaeta
Habitatmarine
目 見內文 Sabellastarte magnifica, magnificent feather duster worm 管觸鬚下綱（學名：Canalipalpata），舊作管觸鬚目，是環節動物多毛綱之下的一個分類元，下領31個科。 管觸鬚下綱的物種均沒有牙或下顎[1]，當中大部分均為濾食性動物。觸肢有開槽，外有纖毛覆蓋。這些纖毛用於將食物顆粒輸送到口部。然而，鬚腕科物種的纖毛和開槽在進化過程中已經消失[2]。 分類 根據WoRMS，管觸鬚下綱主要包括下列三個目，牠們原來都是管觸鬚目之下的三個亞目[3][4]： 纓鰓蟲目（Sabellida）：有六個科，分別如下[5][6]： 豆纓蟲科（Fabriciidae Rioja, 1923） 欧文虫科（Oweniidae Rioja, 1917）：2属4种 帚毛虫科（Sabellariidae Johnston, 1865）：2亚科5属13种 缨鳃虫科（Sabellidae Latreille, 1825）：2亚科20属64种 龍介蟲科（Serpulidae Rafinesque, 1815）：3亚科23属98种 西伯加蟲科（Siboglinidae Caullery, 1914） 海稚虫目（Spionida）：有一個亞目[7] Spioniformia亞目 sensu Rouse & Fauchald, 1997[8][9] Apistobranchidae科 Mesnil & Caullery, 1898hdyj Longosomatidae科 Hartman, 1944 长手沙蚕科（Magelonidae Cunningham & Ramage, 1888） Poecilochaetidae科 Hannerz, 1956 海稚虫科（Spionidae Grube, 1850） Trochochaetidae科 Pettibone, 1963 Uncispionidae科 Green, 1982 蛰龙介目（Terebellida[10]） Acrocirridae Banse, 1969：有時被歸入Spionida亞目 Family Alvinellidae Family Ampharetidae[11] Family Chloraemidae Quatrefages, 1849：WoRMS認為是Flabelligeridae的同種異名。 丝鳃虫科（Cirratulidae Carus, 1863）：有時被歸入Spionida亞目 Family Ctenodrilidae：有爭議，有時被歸入獨立的Ctenodrilida亞目。 Family Fauveliopsidae Hartman, 1971：WoRMS認為是Flabelligeridae的同種異名。 Family Flabel
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Article
9 sectionsContents
- Description
- {{Visible anchor|Radiole}}
- Function
- Growth and regeneration
- Fossil record
- Taxonomy
- Gallery
- References
- External links
Canalipalpata, also known as bristle-footed annelids or fan-head worms, is an order of polychaete worms consisting of 31 families such as the Serpulidae (tubeworms), Sabellidae (fanworms and feather duster worms), and Siboglinidae (beardworms) of the suborder Sabellida, and the Alvinellidae, a family of worms often associated with hydrothermal vents (though a number of Siboglinids also inhabit hydrothermal vents, like the giant tube worm Riftia pachyptila). Most canalipalpatans are considered to be tube worms, with some exceptions.
==Description== The Canalipalpata have no teeth or jaws. Most are filter feeders. They have grooved palpi, which are covered in cilia. These cilia are used to transport food particles to the mouth. However, the cilia and grooves have been lost in the Siboglinidae family.