Inside the tube the animal is segmented and regionally specialized, with highly modified appendages on different segments for cutting the tunnel, feeding, or creating suction for the flow of water through the tube home. The modified segments for feeding are on the 12th segment from the head for members of this family.
本科物種的若蟲在所有多毛綱的物種來說體型最大[3]，從 0.4 mm 到 2.5 mm不等；有紀錄最大的長達 12 mm; the late stage of an unknown phyllodicid species).[3]Chaetopteridae larvae are barrel-like in form with one to two ciliated bands at the midsection.[3] They also have a large buccal funnel.[3] These larvae are often long lived and effectively disseminate, although are constrained geographically to their appropriate ranges for successful adult growth.[3] The most common form of larval developmental plan for polychaetes is the trochophore larvae.[4] The trochophore will add segments sequentially from a posterior growth zone to produce a nectochaete larva.[4]Chaetopterus represents a distinct deviation from this general design.[4] At no point in larval growth stages does the metatrochophore take on the clearly segmented form of the typical nectochaete larva.[4] The 15 segments of Chaetopterus are formed by subdivision of existing anlage.[4]
Feeding
The Chaetopteridae have several genera with peculiar and well-studied filter feeding mechanisms. The genera Chaetopterus, Mesochaetopterus, and Spiochaetopterus feed using a thin mucus net suspended across the upper portion of their tube. The mucus net is secreted by a hooplike structure called the aliform notopodia arch. The net can grow at a rate as great as one millimeter per second as water currents generated by the notopodial fans pass plankton through the net. When the net grows large enough it contacts the ciliated cup, which rolls up the net. When the roll becomes large the net is disconnected from the aliform notopodia and is rolled into a ball before the ciliated mid-dorsal groove transports it to the mouth.[2]
^ 2.02.1Ruppert, E., Fox, R., & Barnes, R. (2007). Invertebrate Zoology: A functional Evolutionary Approach. 7th Edition. Belmont:Thomson Learning. ISBN 0-03-025982-7
^ 3.03.13.23.33.4Osborn, K.J.; G.W. Rouse; S.K. Goffredi; B.H. Robison. Description and Relationships of Chaetopterus pugaporcinus, an Unusual Pelagic Polychaete (Annelida, Chaetopteridae). The Biological Bulletin. 2007, 212 (1): 40–54. PMID 17301330. doi:10.2307/25066579.
^ 4.04.14.24.34.4Irvine, S.Q.; O. Chaga; M.Q. Martindale. Larval Ontogenetic Stages of Chaetopterus: Developmental Heterochrony in the Evolution of Chaetopterid Polychaetes. The Biological Bulletin. 1999, 197: 319–331. doi:10.2307/1542786.
^Struck, T. H.; Paul, C.; Hill, N.; Hartmann, S.; Hösel, C.; Kube, M.; Lieb, B.; Meyer, A.; Tiedemann, R.; Purschke, G. N.; Bleidorn, C. Phylogenomic analyses unravel annelid evolution. Nature. 2011, 471 (7336): 95–98. PMID 21368831. doi:10.1038/nature09864.
外部連結
Some relevant images of adult Chaetopteridae （页面存档备份，存于互联网档案馆）
行進 16, 2023
磷沙蚕科, 學名, chaetopteridae, 是多毛綱隐居亚纲, 之下的一個海洋濾食蠕蟲科, 终生管栖, 居住在海底沉積物或硬基層內挖掘的垂直或u形棲管内, 蟲體本身亦已高度適應於在牠們分泌的棲管內生活, 棲管的两端开口露出泥沙表面, 而其身体分为三段, 負責身體的不同功能, 異律分節, 這三段為, 前段, 背腹扁平, 有9对圆锥形突起, 围口节为一宽领状, 背面有1对围口触手, 口前叶退化, 中段由5节组成, 第一节两侧有1对大的翼状突起, 后段约有30多个体节组成, 科学分类界, 动物界, animali. 磷沙蚕科 學名 Chaetopteridae 是多毛綱隐居亚纲 1 之下的一個海洋濾食蠕蟲科 终生管栖 居住在海底沉積物或硬基層內挖掘的垂直或U形棲管内 蟲體本身亦已高度適應於在牠們分泌的棲管內生活 棲管的两端开口露出泥沙表面 而其身体分为三段 負責身體的不同功能 異律分節 1 這三段為 2 前段 背腹扁平 有9对圆锥形突起 围口节为一宽领状 背面有1对围口触手 口前叶退化 中段由5节组成 第一节两侧有1对大的翼状突起 后段约有30多个体节组成 磷沙蚕科科学分类界 动物界 Animalia门 環節動物門 Annelida纲 多毛綱 Polychaeta亚纲 隐居亚纲 Sedentaria科 磷沙蚕科 Chaetopteridae 另外 疣足的腹鬚转变为吸盘 用以附着在管壁上 而其背鬚則转变成肌肉质的鼓动器 能鼓动水流 以获得食料和氧气 Inside the tube the animal is segmented and regionally specialized with highly modified appendages on different segments for cutting the tunnel feeding or creating suction for the flow of water through the tube home The modified segments for feeding are on the 12th segment from the head for members of this family 該管是分段和區域專業的 具有高度修改的附件用於切割隧道 給水或通過管道產生水流 飼養改良的部分在這個家族的成員頭上的第12段 目录 1 若蟲 2 Feeding 3 分類 4 參考文獻 5 外部連結若蟲 编辑本科物種的若蟲在所有多毛綱的物種來說體型最大 3 從 0 4 mm 到 2 5 mm不等 有紀錄最大的長達 12 mm the late stage of an unknown phyllodicid species 3 Chaetopteridae larvae are barrel like in form with one to two ciliated bands at the midsection 3 They also have a large buccal funnel 3 These larvae are often long lived and effectively disseminate although are constrained geographically to their appropriate ranges for successful adult growth 3 The most common form of larval developmental plan for polychaetes is the trochophore larvae 4 The trochophore will add segments sequentially from a posterior growth zone to produce a nectochaete larva 4 Chaetopterus represents a distinct deviation from this general design 4 At no point in larval growth stages does the metatrochophore take on the clearly segmented form of the typical nectochaete larva 4 The 15 segments of Chaetopterus are formed by subdivision of existing anlage 4 Feeding 编辑The Chaetopteridae have several genera with peculiar and well studied filter feeding mechanisms The genera Chaetopterus Mesochaetopterus and Spiochaetopterus feed using a thin mucus net suspended across the upper portion of their tube The mucus net is secreted by a hooplike structure called the aliform notopodia arch The net can grow at a rate as great as one millimeter per second as water currents generated by the notopodial fans pass plankton through the net When the net grows large enough it contacts the ciliated cup which rolls up the net When the roll becomes large the net is disconnected from the aliform notopodia and is rolled into a ball before the ciliated mid dorsal groove transports it to the mouth 2 分類 编辑本科物種包括下列三個屬 磷沙蚕属 Chaetopterus 1 Phyllochaetopterus屬 Spiochaetopterus屬另外 分子生物學研究表明 本分類單元是環節動物的基底 位處星蟲動物門之下 5 參考文獻 编辑 1 0 1 1 1 2 磷沙蚕属 Chaetopterus 海南大學水生生物分类图片库 2016 08 25 中文 简体 永久失效連結 2 0 2 1 Ruppert E Fox R amp Barnes R 2007 Invertebrate Zoology A functional Evolutionary Approach 7th Edition Belmont Thomson Learning ISBN 0 03 025982 7 3 0 3 1 3 2 3 3 3 4 Osborn K J G W Rouse S K Goffredi B H Robison Description and Relationships of Chaetopterus pugaporcinus an Unusual Pelagic Polychaete Annelida Chaetopteridae The Biological Bulletin 2007 212 1 40 54 PMID 17301330 doi 10 2307 25066579 4 0 4 1 4 2 4 3 4 4 Irvine S Q O Chaga M Q Martindale Larval Ontogenetic Stages of Chaetopterus Developmental Heterochrony in the Evolution of Chaetopterid Polychaetes The Biological Bulletin 1999 197 319 331 doi 10 2307 1542786 Struck T H Paul C Hill N Hartmann S Hosel C Kube M Lieb B Meyer A Tiedemann R Purschke G N Bleidorn C Phylogenomic analyses unravel annelid evolution Nature 2011 471 7336 95 98 PMID 21368831 doi 10 1038 nature09864 外部連結 编辑Some relevant images of adult Chaetopteridae 页面存档备份 存于互联网档案馆 取自 https zh wikipedia org w index php title 磷沙蚕科 amp oldid 67754152, 维基百科，wiki，书籍，书籍，图书馆，
