Gigaxytes, Srisonchai & Enghoff & Likhitrakarn & Panha, 2018

Srisonchai, Ruttapon, Enghoff, Henrik, Likhitrakarn, Natdanai & Panha, Somsak, 2018, A revision of dragon millipedes III: the new genus Gigaxytes gen. nov., with the description of three new species (Diplopoda, Polydesmida, Paradoxosomatidae), European Journal of Taxonomy 463, pp. 1-43 : 9-11

publication ID

https://doi.org/10.5852/ejt.2018.463

publication LSID

lsid:zoobank.org:pub:0A1234C2-BE04-4EFE-9EB7-8F91E8485327

DOI

https://doi.org/10.5281/zenodo.5542450

persistent identifier

https://treatment.plazi.org/id/71FC419F-3CB9-4F01-BB57-461E8DD2D771

taxon LSID

lsid:zoobank.org:act:71FC419F-3CB9-4F01-BB57-461E8DD2D771

treatment provided by

Plazi

scientific name

Gigaxytes
status

gen. nov.

Key to species of Gigaxytes gen. nov. (based mainly on males)

1. Male femora 5, 6, 7 without modification ( Fig. 10 View Fig E–F) ..................................................................... ................................................................. G. gigas ( Golovatch & Enghoff, 1994) gen. et comb. nov.

– Male femora 5, 6 or 5, 6, 7 with an apophysis (e.g., Fig. 15 View Fig E–G) ................................................... 2

2. Body brown. Only male femora 5 and 6 with apophyses ( Fig. 5 View Fig E–F); solenophore narrow laterally (e.g., Figs 7 View Fig C–D, 8C, E) ............................... G. fusca Srisonchai, Enghoff & Panha gen. et sp. nov.

– Body pinkish brown or brownish pink. Male femora 5, 6 and 7 with apophyses ( Figs 15 View Fig E–G, 20 E– G); solenophore (sph) broad laterally (e.g., Figs 17C View Fig , 18C View Fig , 22C View Fig , 23C View Fig ) ........................................... 3

3. Paraterga short ( Fig. 16 View Fig A–B); collum usually with 3+3 cones/spines (intermediate row) ( Fig. 15A View Fig ); metaterga 2–8 usually with 4+4 cones/spines (anterior row), 3+3 cones/ spines (intermediate row) and 3+3 cones/spines (posterior row); metaterga 9–19 usually with 5+5 cones/spines (anterior row), 5+5 cones/spines (intermediate row) and 5+5 cones/spines (posterior row) ( Fig. 15 View Fig A– C) ......................................................... G. parvoterga Srisonchai, Enghoff & Panha gen. et sp. nov.

– Paraterga long ( Fig. 21 View Fig A–B); collum usually with 4+4 cones/spines (intermediate row) ( Fig. 20A View Fig ); metaterga 2–8 usually with 4+4 cones/spines (anterior row), 4+4 cones/ spines (intermediate row) and 4+4 cones/spines (posterior row); metaterga 9–12 usually with 5+5 cones/spines (anterior row), 5+5 cones/spines (intermediate row) and 5+5 cones/spines (posterior row); metaterga 13–19 usually with 6+6 cones/spines (anterior row), 6+6 cones/ spines (intermediate row) and 6+6 cones/spines (posterior row) ( Fig. 20 View Fig A–C) ................ G. suratensis Srisonchai, Enghoff & Panha gen. et sp. nov.