? bifrons Thorell, 1895 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Arthropoda class Arachnida order Araneae family Theridiidae genus Janula species Janula bifrons Name Homonyms ? bifrons Thorell, 1895 ? bifrons de Koninck, 1878 ? bifrons Oppel, 1860 ? bifrons Perner, 1903 ? bifrons Gemmellaro, 1887 ? bifrons Bruguiere, 1792 ? bifrons Barrande, 1866