? rigidus Pangalo Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Cucurbitales family Cucurbitaceae genus Cucumis species Cucumis melo Name Homonyms ? rigidus Ameghino, 1901 ? rigidus Billings, 1857 ? rigidus Ameghino, 1902 ? rigidus Massalongo, 1890 ? rigidus Diener, 1897