Parapharyngodon Chatterji 1933
Creators: name: Sousa-Silva, Charles De
name: Alcantara, Edna Paulino
name: Ferreira-Silva, Cristiana
name: Morais, Drausio Honorio
name: Cascon, Paulo
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Chromadorea
Oxyurida
Pharyngodonidae
Parapharyngodon

description: 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
12. Males with pre cloacal papillae ................................................................................ P. verrucosus
12’. Males without pre cloacal papillae ....................................... ....................................... P. largitor
description: Published as part of Sousa-Silva, Charles De, Alcantara, Edna Paulino, Ferreira-Silva, Cristiana, Morais, Drausio Honorio & Cascon, Paulo, 2024, A new species of Parapharyngodon (Oxyuroidea: Pharyngodonidae) infecting Corythomantis greeningi (Anura: Hylidae) from Northeast Brazil, pp. 2219-2236 in Journal of Natural History 58 (45 - 48) on pages 2231-2232, DOI: 10.1080/00222933.2024.2420959, http://zenodo.org/record/14243446