A much needed new name for a Brazilian Cone (Gastropoda: Conidae)

A new species of Jaspidiconus is described from the southern area of the Cabo Frio region, Rio de Janeiro State, Brazil, in the northernmost part of the Janeiran Subprovince of the Paulinian Molluscan Province. This new cone shell, here named Jaspidiconus carnaval new species, was previously referred to as "Conus pusio" by most Conidae workers. That taxon is now known to refer to a West Indian species from the Caribbean Molluscan Province and not the southern Brazilian cone. Jaspidiconus carnaval represents the farthest-south range of the genus Jaspidiconus.