The nassarioid gastropod genus Trajana ss includes those species with a closed siphonal
canal and a circular aperture, surrounded by a raised peristome. There are but four species …

The name Harpa americana has been applied to every fossil Harpa specimen found in the
New World. A second example of true H. americana from the Gurabo Formation, Dominican …

In a recent number of this joumal the occurrence of Harpa americana Pilsbry, 1922, in the
Quebrada Camarones section of northwest Ecuador, was divulged by Pitt (1981, p. 155). It …

Inasmuch as the Bolivar Trough, or Atrato Strait, of Colombia and Ecuador is probably the
largest and most long-lasting trans-American Tertiary seaway, a study of the muricid …

In the extended Caribbean province of Miocene and Pliocene times (Woodring, 1966), the
genus Strombina Mörch, had a wide distribution and was represented by a large number of …

ABSTRACT Subspecies of Charonia lampas (Linné) and Charonia tritonis (Linné) occur
worldwide today, the former dating from the European Oligocene. A new fossil form of Ch …

Seventeen gastropod species including six new ones, belonging to the Archaeogastropoda,
Neritimorpha and Heterostropha, are described from the lower Maastrichtian of the Mexcala …

Species of Vetigastropoda (Fissurellidae, Turbinidae, Trochidae) and one species of
Neritimorpha (Neritidae) from the Navidad area, south of Valparaı́so, and the Arauco …

The muricid fauna of the Late Miocene Angostura Formation, northwestern Ecuador,
includes two species previously known from the Gatun Formation of Panama, the …

In the fossil record of the Caribbean two of the rarer genera are Simnia Risso, 1826 and
Jenneria Jousseame, 1856; the former is represented by three species, one each from …