Taxonomic revision of the genus Glypthelmins Stafford, 1905 (Platyhelminthes: Digenea: Plagiorchiida), parasites of anurans in the Americas Author León, Pérez-Ponce De text Zootaxa 2008 1882 1 45 journal article 10.5281/zenodo.184219 43bdd1b2-1689-4c52-a26d-a1d9c20178e4 1175-5326 184219 Key to species of Glypthelmins 1a. Ratio of body width/length larger than 7. Suctorial disc in ventral sucker present................. G . intestinalis 1b. Ratio of body width/length smaller than 6. Suctorial disc in ventral sucker absent....................................2. 2a. Perypharyngeal glands present ....................................................................................................... G . quieta 2b. Perypharyngeal glands absent......................................................................................................................3. 3a. Ratio of oral sucker/ventral sucker length smaller than 1:0.6.....................................................................4. 3b. Ratio of oral sucker/ventral sucker length larger than 1:0.7........................................................................9. 4a. Pharynx width larger than ventral sucker width..........................................................................................5. 4a. Pharynx width equal or smaller than ventral sucker width..........................................................................8. 5a. Symmetrical testes .............................................................................................................. G . californiensis 5b. Oblique testes...............................................................................................................................................6. 6a. Vitelline follicles confluent dorsally in the region between caecal bifurcation and ventral sucker ............... ................................................................................................................................................ G . tuxtlasensis 6b. Vitelline follicles confluent dorsally only at the level of testes...................................................................7. 7a. Uterine loops occupying the postcaecal space posteriorly to the end of body ................................ G . facioi 7b. Uterine loops occupying the intercaecal space posteriorly to the end of caeca............................... G . parva 8a. Asymmetrical distribution of the 2 fields of vitelline follicles along the body ................... G . brownorumae 8b. Symmetrical distribution of the 2 fields of vitelline follicles along the body ............................... G . shastai 9a. Uterine loops between ventral sucker and testes region; extracaecal uterine loops along the body present.. ....................................................................................................................................... G . pennsylvaniensis 9b. Uterine loops between ventral sucker and testes region absent; extracaecal uterine loops along the body absent........................................................................................................................................... G . hyloreus