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背楯亚目

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背楯亚目(学名:Notaspidea),原作背楯目,是海蛞蝓的一个人工分类群组,现时已经被分成两个互不相关的群组:伞螺目英语Umbraculida侧鳃目Pleurobranchmorpha[1]。从2018年起,本分类被认为是裸侧类支序之下的侧鳃目(Pleurobranchida)的异名[1]

分类学变更历史

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本分类原最初由1883年由法国动物学家保罗·亨利·费舍尔设置,当时包括侧鳃海牛属英语PleurobranchusPleurobranchus)及伞螺属英语Umbraculum (gastropod)Umbrella)两属,并归类于覆鳃类(Tectibranchiata)之中[2]。4

背楯类物种包括有海蛞蝓和一种被称为“假笠贝”的海洋腹足纲软体动物的分类,直腹足亚纲后生腹足下纲后鳃目的成员。然而,在较新的2005年布歇特和洛克罗伊的腹足类分类,the families Umbraculidae and Tylodinidae belong to the superfamily Umbraculoidea Dall英语W.H. Dall, 1889, part of the clade Umbraculida. Grande et al. (2004) found Umbraculoidea to be a sister clade to the Cephalaspidea (Acteonoidea excluded).[3]

The families Tylodinidae英语Tylodinidae and Umbraculidae英语Umbraculidae have large limpet-like external shells and a small mantle, while the species in the family Pleurobranchidae have a prominent mantle and an internal shell that becomes reduced or is lost in adults.[4] Many species produce mantle secretions as a chemical defense against predators [5]

由于侧鳃科与伞螺科并不具单系性,因此两后来被拆分,本分类元也于被处理为侧鳃目(Pleurobranchida)的同物异名[2]

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本亚目包括下列三个科:

注释

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  1. ^ 1.0 1.1 Gofas, S. Notaspidea. WoRMS. 2014 [2018-03-20]. 
  2. ^ 2.0 2.1 WoRMS - World Register of Marine Species - Notaspidea. www.marinespecies.org. [2018-04-04]. (原始内容存档于2018-03-20) (英语). 
  3. ^ Grande C.; J. Templado; J.L. Cervera; R. Zardoya. Phylogenetic relationships among Opisthobranchia (Mollusca, Gastropoda) based on mitochondrial cox1, tmV, and rmL genes. Molecular Phylogenetics and Evolution. 2004, 33 (2): 378–388. PMID 15336672. doi:10.1016/j.ympev.2004.06.008. 
  4. ^ R. Willan. Phylogenetic systematics of the Notaspidea (Opisthobranchia) with a reappraisal of families and genera. Am. Malacol. Bull. 1987, 5: 215–241. 
  5. ^ Aldo Spinella; Ernesto Mollo; Enrico Trivellone; Guido Cimino. Testudinariol A and B, two unusual triterpenoids from the skin and the mucus of the marine mollusc Pleurobrancus testudinarius.. Tetrahedron. December 1997, 53 (49): 16891–16896 [2018-03-19]. doi:10.1016/S0040-4020(97)10124-7. (原始内容存档于2019-03-13). 

参考文献

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  • Notaspidea. ITIS. 
  • Powell A. W. B.英语Arthur William Baden Powell, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1

外部链接

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