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J Parasitol. 2015 Jun;101(3):374-81. doi: 10.1645/13-460.1. Epub 2014 Nov 19.

Description of a New Species of Parapharyngodon (Nematoda: Pharyngodonidae) from Mexico with a List of Current Species and Key to Species from the Panamanian Region.

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Department of Biology, Pennsylvania State University, Shenango Campus, 147 Shenango Avenue, Sharon, Pennsylvania 16146.


Parapharyngodon guerreroensis n. sp. (Nematoda: Pharyngodonidae) from the large intestine of Lepidophyma smithii from Mexico is described and illustrated. A list of nominal species and a key to species from the Panamanian region are provided. Parapharyngodon guerreroensis n. sp. is the 57th species assigned to the genus and the 10th from the Panamanian region. It differs from other species in the genus in that males possess 3 pairs of caudal papillae, an anterior cloacal lip supporting 4 digitiform processes, and a blunt spicule 67-104 μm in length, while females possess long flexible caudal appendages.

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