根頭下綱

根頭下綱（學名：Rhizocephala），原為根頭總目^[1][2] ，現升級為下綱。

根頭下綱
Externa (highlighted) of mature female Sacculina on a female Liocarcinus holsatus
科學分類
界：	動物界 Animalia
門：	節肢動物門 Arthropoda
亞門：	甲殼亞門 Crustacea
綱：	鞘甲綱 Thecostraca
亞綱：	蔓足亞綱 Cirripedia
下綱：	根頭下綱 Rhizocephala Müller, 1862
科
見正文

下級分類

本下綱包括以下科：^[3][4]

• Chthamalophilidae Bocquet-Védrine, 1961
• Clistosaccidae Boschma, 1928
  • Clistosaccus Lilljeborg, 1861
  • Sylon M.Sars, 1870
    • Sylon hippolytes M.Sars, 1870^[5]
• Duplorbidae Høeg & Rybakov, 1992
• Mycetomorphidae Høeg & Rybakov, 1992
• Parthenopeidae Rybakov & Høeg, 2013
• Peltogasterellidae Høeg & Glenner, 2019
• Peltogastridae Lilljeborg, 1861
• Pirusaccidae Høeg & Glenner, 2019
• Polyascidae Høeg & Glenner, 2019
• Polysaccidae Lützen & Takahashi, 1996
• 蟹奴科 Sacculinidae Lilljeborg, 1861
• Thompsoniidae Høeg & Rybakov, 1992
• Triangulidae Høeg & Glenner, 2019

• 
  Clistosaccus paguri (Akentrogonida)
• 
  Sacculina carcini (Kentrogonida)

• Crustaceans主題
• Arthropods主題

參考文獻

1. Pérez-Losada, Marcos; Høeg, Jens T; Crandall, Keith A. Remarkable convergent evolution in specialized parasitic Thecostraca (Crustacea). BMC Biology. 17 April 2009, 7: 15. PMC 2678073 . PMID 19374762. doi:10.1186/1741-7007-7-15.
2. Walker, Graham. Introduction to the Rhizocephala (Crustacea: Cirripedia). Journal of Morphology. July 2001, 249 (1): 1–8. PMID 11410936. S2CID 41339146. doi:10.1002/jmor.1038.
3. Chan, Benny K. K.; Dreyer, Niklas; Gale, Andy S.; Glenner, Henrik; et al. The evolutionary diversity of barnacles, with an updated classification of fossil and living forms. Zoological Journal of the Linnean Society. 2021. doi:10.1093/zoolinnean/zlaa160 .
4. World Register of Marine Species, genus Concavus. [2021-08-22]. （原始內容存檔於2021-08-23）.
5. Sylon hippolytes. Parasite of the Day. [2024-03-14]. （原始內容存檔於2024-03-14）.