Haycocknema perplexum Spratt, Beveridge, Andrews & Dennett, 1999 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Nematoda order Muspiceida family Robertdollfusidae genus Haycocknema species Haycocknema perplexum Name Homonyms Haycocknema perplexum Spratt, Beveridge, Andrews & Dennett, 1999