Redescription of species of Gongylonema Molin, 1857 (Nematoda: Spiruroidea Gongylonematidae) parasitic in some Australian vertebrate hosts and description of three new species Author Spratt, David M. Australian National Wildlife Collection, CSIRO National Research Collections, Canberra, ACT, Australia. text Zootaxa 2023 2023-02-09 5239 2 204 220 http://dx.doi.org/10.11646/zootaxa.5239.2.2 journal article 53921 10.11646/zootaxa.5239.2.2 f821ad3a-329b-454f-9362-758415dfda45 1175-5326 7624101 4AFDDAD0-55C4-4921-8A82-455DFB01E437 Key to species of Gongylonema from some Australian vertebrate hosts 1. Males with 2 lateral alae................................................................................ 2 Males with 1 lateral ala....................................................................... G. beveridgei 2. Left spicule length>11,000µm........................................................................... 3 Left spicule length <7000µm............................................................................ 4 3. Left spicule without barbed tip distally, vulva> 12mm from anterior end................................. G. alecturae Left spicule with blunt barbed tip distally, vulva < 9mm from anterior end...................... G. macropodum sp. nov. 4. Left spicule length>4000µm........................................................... G. bettongiae sp. nov. Left spicule length <1000µm............................................................................ 5 5. Left spicule length>800µm, vulva>5000µm from anterior end............................... G. aguilarense sp. nov. Left spicule length <700µm, vulva <5000µm from anterior end..................................... G. neoplasticum