Ventrostoma depressum (Chaster, 1892) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Foraminifera order Polymorphinida family Ellipsolagenidae genus Ventrostoma species Ventrostoma depressum Name Synonyms Lagena cymbula Heron-Allen & Earland, 1913 Lagena depressa Chaster, 1892 Homonyms Ventrostoma depressum (Chaster, 1892)