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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Cladus: Pancrustacea
Superclassis: Multicrustacea
Classis: Malacostraca
Subclassis: Eumalacostraca
Superordo: Peracarida
Ordo: Mictacea
Familiae: Hirsutiidae - Mictocarididae

Mictacea Bowman, Garner, Hessler, Iliffe & Sanders, 1985

Bowman, T.E., Garner, S.P., Hessler, R.R., Iliffe, T.M. & Sanders, H.L. (1985). Mictacea, a new order of Crustacea Peracarida. J. Crust. Biol. 5: 74–78.

Vernacular names
中文: 混足目

Mictacea is a monotypic order of crustaceans. It was originally erected for three species of small shrimp-like animals of the deep sea and anchialine caves.[2] They were placed in two families, the Mictocarididae and Hirsutiidae,[1][2] but Hirsutiidae is now placed in order Bochusacea,[3] leaving Mictacea with a single species, Mictocaris halope.[4]

Mictaceans have a brood pouch (marsupium) and biramous thoracic limbs, but lack a carapace.[5] They have eyestalks but "no functioning visual elements".[6]

The existence of animals resembling the Mictacea had been predicted by Frederick Schram in the early 1980s. Two groups of scientists independently discovered the animals in 1985, and, once they learnt of each other's work, agreed to work together on the paper describing the new order.[7]

A single species is recognised:

Mictocarididae Bowman & Iliffe, 1985

Mictocaris halope Bowman & Iliffe, 1985


J. W. Martin & G. E. Davis (2001). An Updated Classification of the Recent Crustacea (PDF). Natural History Museum of Los Angeles County. pp. 1–132.
J. K. Lowry & M. Yerman. "Mictacea". Australian Museum. Archived from the original on May 8, 2012. Retrieved September 3, 2007.
WoRMS. "Hirsutiidae". World Register of Marine Species. Retrieved 26 December 2022.
WoRMS. "Mictocaris halope Bowman & Iliffe, 1985". World Register of Marine Species. Retrieved 26 December 2022.
Matthew A. Wills (2001). "Morphological disparity: a primer". In Jonathan M. Adrain; Gregory D. Edgecombe; Bruce S. Lieberman (eds.). Fossils, Phylogeny, and Form: an Analytical Approach. Topics in geobiology. Springer. pp. 55–144. ISBN 978-0-306-46721-9.
Olav Giere (2009). "Meiofauna taxa: a systematic account". Meiobenthology: the Microscopic Motile Fauna of Aquatic Sediments (2nd ed.). Springer. pp. 103–234. doi:10.1007/b106489 (inactive 1 August 2023). ISBN 978-3-540-68657-6.
Thomas E. Bowman; Susan P. Garner; Robert R. Hessler; Thomas M. Iliffe; Howard L. Sanders (1985). "Mictacea, a new order of Crustacea Peracarida". Journal of Crustacean Biology. 5 (1): 74–78. doi:10.2307/1548221. JSTOR 1548221.


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