Tantulocarida

Tantulocarida is a highly specialised group of parasitic crustaceans that consists of about 33 species, treated as a subclass of the class Hexanauplia (which also includes copepods and barnacles). They are typically ectoparasites that infest copepods, isopods, tanaids, amphipods and ostracods.[2][3]

Tantulocarida
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Hexanauplia
Subclass: Tantulocarida
G. A. Boxshall & R. J. Lincoln, 1983 [1]
Families
  • Basipodellidae
  • Cumoniscidae
  • Deoterthridae
  • Doryphallophoridae
  • Microdajidae

Description

Body length

Members of this subclass are minute – less than 0.3 millimetres (0.012 in) in length and have a dramatic reduction in body form compared to other crustaceans, with an unsegmented, sac-like thorax and a much reduced abdomen.[4] One tantulocarid species, Tantulacus dieteri, is the world's smallest arthropod, with a total body length of only 85 micrometres (0.0033 in).[5]

Life cycle

The tantulocarid life cycle is unique. It does not follow the usual moulting cycle of all crustaceans; instead, the mature adult actually develops within an attached parasitic tantulus larva.[6]

Classification

Five families are recognised:[7]

References
  1. "Tantulocarida". Integrated Taxonomic Information System.
  2. "WoRMS - World Register of Marine Species - Tantulocarida". www.marinespecies.org. Retrieved 2019-06-28.
  3. Geoffrey A. Boxshall & Roger J. Lincoln (February 1983). "Tantulocarida, a new class of Crustacea ectoparasitic on other crustaceans". Journal of Crustacean Biology. 3 (1): 1–16. doi:10.2307/1547849. JSTOR 1547849.
  4. "Tantulocarida". AccessScience Encyclopedia. McGraw-Hill. Archived from the original on 2011-06-17. Retrieved 2016-09-10.
  5. Inga Mohrbeck, Pedro Martínez Arbizu & Thomas Glatzel (October 2010). "Tantulocarida (Crustacea) from the Southern Ocean deep sea, and the description of three new species of Tantulacus Huys, Andersen & Kristensen, 1992". Systematic Parasitology. 77 (2): 131–151. doi:10.1007/s11230-010-9260-0. PMID 20852984.
  6. G. A. Boxshall & R. J. Lincoln (June 11, 1987). "The life cycle of the Tantulocarida (Crustacea)". Philosophical Transactions of the Royal Society B. 315 (1173): 267–303. doi:10.1098/rstb.1987.0009. JSTOR 2396610.
  7. Geoff Boxshall. "Tantulocarida". WoRMS. World Register of Marine Species. Retrieved 2016-09-10.
  8. Geoff Boxshall (August 20, 2008). T. Chad Walter & Geoff Boxshall (ed.). "Basipodellidae". World Copepoda database. World Register of Marine Species. Retrieved 2016-09-10.
  9. Geoff Boxshall (August 20, 2008). T. Chad Walter & Geoff Boxshall (ed.). "Doryphallophoridae". World Copepoda database. World Register of Marine Species. Retrieved 2016-09-10.
  10. Geoff Boxshall (August 20, 2008). T. Chad Walter & Geoff Boxshall (ed.). "Microdajidae". World Copepoda database. World Register of Marine Species. Retrieved 2016-09-10.
  11. Geoff Boxshall (2012). Walter TC, Boxshall G (eds.). "Deoterthridae". World of Copepods database. World Register of Marine Species. Retrieved 2016-09-10.
  12. Geoff Boxshall (2012). Walter TC, Boxshall G (eds.). "Onceroxenidae". World of Copepods database. World Register of Marine Species. Retrieved 2016-09-10.
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