Arctus may refer to:
*
''Arctus'' (crustacean) Dana, 1852, a genus of crustaceans in the family
Scyllaridae
Slipper lobsters are a family (Scyllaridae) of about 90 species of achelate crustaceans, in the Decapoda clade Reptantia, found in all warm oceans and seas. They are not true lobsters, but are more closely related to spiny lobsters and furry lo ...
* ''Arctus''
Haan in Siebold, 1849, a genus of crustaceans in the family Scyllaridae, synonym of ''
Scyllarus
''Scyllarus'' is a genus of slipper lobsters from the Atlantic Ocean, including the Mediterranean and Caribbean. Until 2002, the genus included far more species, but these are now placed in other genera. The following species remain in ''Scyl ...
''
* Arctus, variant name for the centaur
Arktos
* Arctus, one of the
Horae
{{Disambiguation, genus