Population Dynamics and Reproduction of a Musculium argentinum (Bivalvia: Sphaeriidae) Population in Southern Chile, South America SANTIAGO PEREDO, ESPERANZA PARADA, PEDRO JARA-SEGUEL, AND DANIEL ROZAS, p. 1 A New Deep-Water Species of the Genus Elilepton (Bivalvia:Galeommatoidea) from the Atlantic J.A. ALLEN, p. 7 Effects of Photoperiod Manipulation on Reproductive Condition of the Northern Bay Scallop, Argopecten irradians irradians (Lamarck, 1819) PETER N. DESANCTIS, KIM TETRAULT, AND STEPHEN T. TETTELBACH, p. 15 Cenozoic Atlanto-Mediterranean Biography of Spiricella (Gastropoda:Umbraculidae) and Climate Change: Filling the Geological Gap CARLOS MARQUES DA SILVA AND BERNARD M. LANDAU, p. 19 The Pliocene Cancellariidae (Mollusca: Gastropoda) of the Cubagua Formation from the Miocene Cantaure Formation, Venezuela BERNARD LANDAU, RICHARD PETIT, AND CARLOS MARQUES DA SILVA, p. 27 Development and Growth of the Hawk Wing Conch, Strombus raninus (Gmelin, 1791) in Culture Conditions: Egg Mass to Early Juvenile Stage ALBERTO DE JESUS-NAVARRETE, MEGAN DAVIS, AND AMBER L. SHAWL, p. 44
