Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Crustacea
Superclassis: Multicrustacea
Classis: Malacostraca
Subclassis: Eumalacostraca
Superordo: Peracarida
Ordo: Cumacea
Familia: Leuconidae
Genera: Alloeoleucon - Americuma - Austroleucon - Bytholeucon - Eudorella - Eudorellopsis - Hemileucon - Heteroleucon - Kontiloleucon – Leucon - Nippoleucon - Ommatoleucon - Paraleucon - Phalloleucon – Pseudeudorella – Pseudoleucon
References
Gerken, S. 2016. Leuconidae (Crustacea: Cumacea) from the collections of the Museum Victoria, Australia. Zootaxa 4067(3): 251–292. DOI: 10.11646/zootaxa.4067.3.1. Reference page.
MÜHLENHARDT-SIEGEL, U. 2011: New and known species of the family Leuconidae (Cumacea, Peracarida) from Antarctic deep-sea basins. Zootaxa, 3117: 1–68. Preview
Leuconidae is a family of marine hooded shrimp (order Cumacea).[1] The family was established by Georg Ossian Sars in his 1878 study of Mediterranean cumaceans.[2]
Description
Leuconidae retain the original number of free thoracic somites, but do not possess a free telson. Their mandibles are truncated dorsally to the molar. In males, the flagellum of the second antenna reaches beyond the hindmost edge of the carapace. Their gills do not have gill plates or other supports.[3]
The endopods (interior branches) of the uropods are present on two (or more rarely one) segments. The males of almost all Leuconidae also have pleopods, typically two pairs that lack an external process on the inner ramus. In females the second antenna is greatly reduced. They have exopods (outer branches) on the maxillipeds and on the first two pereiopods, in females of some species often also on the third, and in the males of most species also on the third and fourth.[3]
Genera
There 17 recognized genera:[1]
Abyssoleucon Lavrenteva & Mühlenhardt-Siegel, 2015
Afroleucon Mühlenhardt-Siegel, 2011
Alloeoleucon Watling & McCann, 1997
Austroleucon Watling, 1991
Bytholeucon Jones, 1991
Eudorella Norman, 1867
Eudorellopsis Sars, 1882
Hemileucon Calman, 1907
Heteroleucon Calman, 1907
Ithyleucon Corbera, 2012
Kontiloleucon Gerken, 2016
Leucon Krøyer, 1846
Nippoleucon Watling, 1991
Ommatoleucon Watling, 1991
Paraleucon Calman, 1907
Phalloleucon Mühlenhardt-Siegel, 2008
Pseudoleucon Zimmer, 1903
References
Watling L, Gerken S, eds. (2021). "Leuconidae Sars, 1878". World Cumacea database. World Register of Marine Species. Retrieved 14 September 2021.
Sars, Georg Ossian (1878). "Nye bidrag til kundskaben om Middelhavets Invertebratfauna. II. Middelhavets Cumaceer" [New contribution to the knowledge of the Mediterranean invertebrate fauna. II. Mediterranean cumaceans]. Archiv for Mathematik og Naturvidenskab (in Danish). 3: 416–512 + pls. 1–18.
Les Watling (December 21, 2004). "Key to families of Cumacea". World Cumacea database. World Register of Marine Species. Retrieved April 9, 2009.
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