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Temporal range: Upper Cretaceous–Recent
Sicyonia penicillata 001.jpg
Sicyonia penicillata
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Suborder: Dendrobranchiata
Family: Sicyoniidae
Ortmann, 1898
Genus: Sicyonia
H. Milne-Edwards, 1830

Sicyonia is a genus of prawns, placed in its own family, Sicyoniidae.[1] It differs from other prawns in that the last three pairs of its pleopods are uniramous, rather than biramous as seen in all other prawns.[2]

Sicyonia contains 52 extant species,[1] and one species known only from fossils[3] from the Upper Cretaceous.[4] Analyses using molecular phylogenetics suggest that the family Sicyoniidae is nested within the larger family Penaeidae, and that the latter family may need to be divided up, elevating each of its traditionally recognised tribes to the rank of family.[2]

The extant species are:[1]


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