Marrus is a genus of siphonophores. Species include:
Marrus antarcticus Totton, 1954 Marrus claudanielis Dunn, Pugh & Haddock, 2005 Marrus orthocanna Kramp, 1942 Marrus orthocannoides Totton, 1954
References Mapstone, G. (2011). Marrus Totton, 1954. In: Schuchert, P. World Hydrozoa database. Accessed through the World Register of Marine Species on 2011-09-08