The 142 species of tonnoidean gastropods recorded from the Neogene to Recent faunas of tropical America (Mexico, and a few taxa from Florida and California, south to Ecuador and Brazil) are revised, along with the 12 species of Neogene to Recent Personidae and Ranellidae occurring in Chile and Argentina. Taxa included are:(1) BURSIDAE: Bursa, 11 species, including the eastern Atlantic species B. scrobilator (Linnaeus, 1758) in the Pliocene and Pleistocene of tropical America; Aspa marginata (Gmelin, 1791), an eastern Atlantic species recorded in the Pliocene-Pleistocene of Limón, Costa Rica; Crossata, with one eastern Pacific species (California to Peru); Marsupina, five species, including M. judensis n. sp.(Miocene, Punta Judas, Costa Rica).(2) PERSONIDAE: Distorsio, 12 species, including D. biangulata n. sp and D. jungi n. sp.(both Miocene, Cantaure, Venezuela); Personopsis, one Recent species.(3) RANELLIDAE, RANELLINAE: Argobuccinum, one species; Fusitriton, three species; Halgyrineum, one species; Priene, one Chilean species; Ranella, three species, including R. chilena n. sp.(Oligocene-Miocene, Chile); Ameranella, one species.(4) RANELLIDAE, CYMATIINAE: Cabestana, one living southwestern Atlantic species; Charonia, three species; Crassicymatium crassicordatum n. gen., n. sp.(Oligocene-Miocene, Chile); Cymatium, four species; Gelagna, one species; Gutturnium, one species; Linatella, one species; Monoplex, 31 species, including M. gatunicus n. sp.(Miocene, Panama), M. jackwinorum n. sp.(Miocene, Venezuela), M. longispira n. sp.(Miocene, Dominican Republic), M. panamensis n. sp.(Miocene-Pliocene, both coasts of Panama), and two species left unnamed; Ranularia, three species; Reticutriton, five species, one left unnamed; Septa, two species, including S. landaui n. sp.(Miocene-Pliocene, Dominican Republic); Turritriton, four species; Sassia, seven species, including S. warreni n. sp.; Cymatiella, one species, C. vokesorum n. sp.(the last two both Miocene-Pliocene, Dominican Republic).(5) CASSIDAE, CASSINAE: Cassis, 12 species, including C. altispira n. sp.(Plio-Pleistocene, Dominican Republic, Atlantic Costa Rica, and Panama) and C. costuliferan. sp.(Pliocene, Atlantic Costa Rica, and Panama); Cypraecassis, six species, including C. cantaurana n. sp.(Miocene, Cantaure, Venezuela); Galeodea, one species; Sconsia, six species.(6) CASSIDAE, OOCORYTHINAE: Dalium, two species; Oocorys, one species.(7) CASSIDAE, PHALIINAE: Echinophoria, three species; Semicassis, five species.(8) TONNIDAE: Eudolium, one species; Malea, nine species, including two unnamed; Tonna, two species. Although Ficus is now included in the superfamily Ficoidea, and most tropical American Ficidae are not included here, the three Ficus species in the Dominican Republic are described in an Appendix: F. bernardi n. sp., F. gibsonsmithi n. sp., and F. lisselongata n. sp. Neosconsia ecuadoriana Olsson, 1942 (Pliocene, Ecuador), is transferred to the family Buccinidae. The Argentinean Oligocene/Miocene species Ocenebra (?) rada (Ihering, 1907), Xymene obliteratus (Cossmann, 1899), and Urosalpinx (sensu lato) dautzenbergi (Ihering, 1897) are transferred to the family Muricidae. Ipunina vladimiri Nielsen & Frassinetti, 2008 (Litiopidae; formerly thought to be an Oocorys species), is recorded from Cantaure, Venezuela. Charonia seguenzae (Aradas & Benoit, 1870) is a fourth Recent Charonia species limited to the eastern Mediterranean Sea. The occurrences of the atlantiphile species Linatella caudata (Gmelin, 1791) in Armuelles Formation (Early Pleistocene), Burica Peninsula, Pacific Panama, and of the …