Parapharyngodon Chatterji, 1933
publication ID |
https://doi.org/ 10.1080/00222933.2024.2420959 |
DOI |
https://doi.org/10.5281/zenodo.14248825 |
persistent identifier |
https://treatment.plazi.org/id/03E8B747-FFEF-A301-FF70-CB5198C6FCDF |
treatment provided by |
Plazi |
scientific name |
Parapharyngodon Chatterji |
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Key to the Neotropical species of the genus Parapharyngodon Chatterji
1. Males with blunt-type spicule .............................................. .............................................. P. silvoi
1’. Males with sharp-type spicule ......................................................................................................... 2
2. Males with echinate anterior anal lip .......................................................................................... 3
2’. Males with smooth anterior anal lip ............................................................................................ 8
3. Unpaired post-anal papilla absent ................................................................................................ 4
3’. Unpaired post-anal papilla present ............................................................................ P. riojensis
4. Males with lateral alae present ...................................................................................................... 5
4’. Males without lateral alae .................................. .................................. P. pereiramendoi sp. n.
5. Males with the presence of a genital cone ............................................................................... 6
5’. Males without the presence of a genital cone ........................................................................ 7
6. Males with triangular oral opening surrounded by six well-developed labial papillae; females with oval oral opening surrounded by six flattened lips; flanges of the anterior anal lip well developed, with the presence of a papilla-like structure on the ventral surface of the genital cone .................................................................................. P. hugoi
6’. Triangular oral opening surrounded by three bilobed lips in both sexes; males with six labial papillae present, females, four; flanges of the anterior anal lip delicate ................ ................................................................................................................................................... P. politoedi
7. Females with ovary in prebulbar position .................................................................. P. bainae
7’. Females with ovary in postbulbar position .................................................... P. sanjuanensis
8. Unpaired post-anal papilla absent ................................................................................................ 9
8’ Unpaired post-anal papilla present ............................................................................................ 10
9. Males with the presence of a genital cone .............................. .............................. P. curupira
9’. Males without the presence of a genital cone ...................................................................... 11
10. Males with spicule larger than 80 μm .................................................................... P. sceleratus
10’. Males with spicule smaller than 80 μm .................................................................................... 12
11. Males with three pairs of caudal papillae, and eggs with eggshell thin and smooth ... ................................................................................................................................................ P. alvarengai
11’. Males with four pairs of caudal papillae, and eggs with eggshell thick and punctated .................................................................................................................................................... P. hispidus View in CoL
12. Males with pre cloacal papillae ................................................................................ P. verrucosus
12’. Males without pre cloacal papillae ....................................... ....................................... P. largitor
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Oxyuroidea |
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