Shell Microstructure of the Patellid Gastropod Collisella sctibra (Gould): Ecological and Phylogenetic Implications SARAH E. GILMAN, p. 235 Records of the Giant North Pacific Squid Onykia robusta (Cephalopoda: Onychoteuthidae) WILL V. BET-SAYAD AND GLENN R. PARSONS, p. 243 Three New Pliocene Species of Stramonita Schumacher, 1817 (Muricidae: Rapaninae) from Western South America and the Evolution of Modern Stramonita chocolata (Duclos, 1832) THOMAS J. DEVRIES, p. 247 Two New Species of Marionia (Mollusca: Nudibranchia) from the Indo-Pacific Region VICTOR G. SMITH AND TERRENCE M. GOSLINER, p. 260 Uric Acid Accumulation Within Intracellular Crystalloid Corpuscles of the Midgut Gland in Pomacea canaliculata (Caenogastropoda, Ampullariidae) ISRAEL A. VEGA, MAXIMILIANO GIRAUD-BILLOUD, EDUARDO KOCH, CARLOS GAMARRA-LUQUES AND ALFREDO CASTRO-VASQUEZ, p. 276 Preliminary Phylogeny of Thordisa (Nudibranchia: Discodorididae) with Descriptions of Five New Species JAMIE M. CHAN AND TERRENCE M. GOSLINER, p. 284 Laboratory Growth of Hatchling Florida Banded Tulips, Fasciolaria lilium hunteria (G. Perry, 1811) in Georgia ALAN J. POWER AND RANDAL L. WALKER, p. 309 Field and Laboratory Observations of Sepia (Doratosepion) elongata d’Orbigny, 1845 CHRISTELLE ALVES, ANNE-SOPHIE DAMAILLACQ, NADAV SHASHAR AND LUDOVIC DICKEL, p. 313 Selection for Prey Shell Thickness by the Naticid Gastropod Euspira lewisii (Naticidae) on the Bivalve Protothaca staminea (Veneridae) MELISSA GREY, PETER G. LELIÈVRE AND ELIZABETH G. BOULDING, p. 317
