Dacryomicaplana, gen. et sp. nov., a prochaetodermatid Aplacophora from a Pacific seamount
DMITRY L. IVANOV AND AMÉLIE H. SCHELTEMA, p. 1
Piscoacritia, gen. nov.: first account of tribe Trochini (Gastropoda: Trochidae: Trochinae) from the Cenozoic of western South America
THOMAS J. DEVRIES AND BRIAN HESS, p. 6
New fossil and Recent Limopsis (Bivalvia) from the northwestern Pacific
KAZUTAKA AMANO AND KONSTANTIN A. LUTAENKO, p. 13
Uncommon Cretaceous naticiform gastropods from the Pacific slope of North America
RICHARD L. SQUIRES AND LouELLA R. SAUL, p. 21
Observations on the taxonomy and range of Hesperarion Simroth, 1891 and the evidence for genital polymorphism in Ariolimax Mörch, 1860 (Gastropoda: Pulmonata: Arionidae: Ariolimacinae) BARRY ROTH, p. 38
The unusual prodissoconch and larval development of Barbatia bailyi (Bartsch, 1931) (Mollusca: Bivalvia: Arcidae)
AMY L. MORAN, p. 47
Reproductive cycle of the New Zealand geoduck, Panopea zelandica, in two North Island populations
P. E. GRIBBEN, J. HELSON, AND A. G. JEFFS, p. 53 Taxonomic reappraisal of species assigned to the North American freshwater gastropod subgenus Natricola (Rissooidea: Hydrobiidae)
ROBERT HERSHLER AND HSIU-PING LIU, p. 66
NOTES, INFORMATION & NEWS
Lectotype designations for two east Asian species of Assimineidae (Gastropoda: Rissooidea)
KOHEI SUZUKIDA AND HIROSHI FUKUDA, p. 82
