Late Cretaceous gastropods belonging to genus Lysis Gabb, 1864, from the Pacific slope of North America, bridge the morphologic gap between turbiniform trichotropids and limpet-like calyptraeids. Development of the depressed and broadened inner lip/co . . .

Two new genera and three new species of extinct buccinoid gastropods are described and named from the Pacific slope of North America. The buccinid? Ornopsis? dysis new species is from uppermost Maastrichtian (uppermost Cretaceous) strata in the Dip Cr . . .

Several previously unreported shallow-marine, warm-water gastropods and bivalves from the upper part of the Santa Susana Formation, east-central Santa Monica Mountains, Los Angeles County, southern California, are described and discussed. The gastropo . . .

A total of 349 epibenthic taxa of macroinvertebrates were recorded from 7 mainland and 15 island rocky intertidal sites in the Southern California Bight. The occurrence of these taxa among the 22 sites is presented as a checklist organized by phyla an . . .

This study addresses patterns of vertical zonation, shell-size variation, and migratory behavior exhibited by two herbivorous intertidal gastropods in the northern Gulf of California, Sonora, Mexico. While actively foraging, Nerita scabricosta inhabit . . .