Cuthona giarannae is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Cuthonidae.Bouchet, P. (2014). Cuthona giarannae Valdés, Moran & Woods, 2012. Accessed through: World Register of Marine Species on 2015-02-12
Distribution This species was described from the sewage outfall, McMurdo Sound, Ross Sea, Antarctica . It is also reported from Arrival Heights, McMurdo Sound, Ross Sea, Antarctica, .
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