USGS professional paper · 1947 · 13 citations · 0 references
Life SciencesEcologyZoologyInvertebrate ZoologyMarine Invertebrate BiologyMarine ZoologyCrustacean ZoologyFreshwater Mollusk ZoologyMarine Invertebrate ZoologyMarine InvertebratesMolluscan BiologyMolluscan ZoologyMolluscan Diversity PatternsMolluscan EvolutionMolluscan Faunal AnalysisMolluscan MorphologyMolluscan PhylogenyMolluscan SystematicsMolluscan Taxonomy