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Issue: Vol. 4679 No. 1: 1 Oct. 2019
Type: Article
Published: 2019-10-01
DOI: 10.11646/zootaxa.4679.1.11
Page range: 181–193
Abstract views: 148
PDF downloaded: 4

Serpinema cayennensis n. sp. (Nematoda: Camallanidae), a parasite of the freshwater turtle Rhinoclemmys punctularia Daudin (Reptilia: Testudines: Geoemydidae) from French Guiana: morphology and phylogenetic relationships with other turtle-parasitising camallanids

African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa Department of Invertebrate Fauna and Systematics, I. I. Schmalhausen Institute of Zoology, 15 Bogdan Khmelnytskyi Street, Kyiv 01030, Ukraine South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown 6140, South Africa
African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown 6140, South Africa
Nematoda Camallanus S. cayennensis Nematodes Phylogeny Reptiles Cayenne

Abstract

The genus Serpinema was erected from the genus Camallanus to include species parasitising freshwater turtles. Following this, the taxonomic status of Serpinema was challenged by different authors considering it as a subgenus or junior synonym of Camallanus. Several specimens of these nematodes were retrieved from the spot-legged wood turtle Rhinoclemmys punctularia from Cayenne, French Guiana. These specimens clearly differed from previously reported Serpinema and Camallanus species parasitising turtles by the number of caudal papillae, shape of spicules and development of vulvar lips. Based on morphological characters the nematodes were assigned to the genus Serpinema and described as a new species S. cayennensis n. sp. The description followed by the molecular data analyses based on 28S, 18S rDNA and cytochrome oxidase subunit 1 (COI) gene sequences.

 

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