Four New Cone Shells from Northern and Central Brazil.

Four new cone shells are described from the Brazilian Molluscan Province. These include: Jaspidiconus tibauensis new species, from the Cearaian Subprovince of northern Brazil; and three species from the Bahian Subprovince of central Brazil, including Jaspidiconus barragrandensis new species, Dauciconus luizcoutoi new species, and Poremskiconus guarapari new species. [ABSTRACT FROM AUTHOR]