pinworm diversity in free-ranging howler monkeys (alouatta spp.) in mexico: morphological and molecular evidence for two new trypanoxyuris species (nematoda: oxyuridae).two new species of trypanoxyuris are described from the intestine of free-ranging howler monkeys in mexico, trypanoxyuris multilabiatus n. sp. from the mantled howler alouatta palliata, and trypanoxyuris pigrae n. sp. from the black howler alouatta pigra. an integrative taxonomic approach is followed, where conspicuous morphological traits and phylogenetic trees based on dna sequences are used to test the validity of the two new species. the mitochondrial cytochrome oxidase subunit 1 gene, and t ...201627262522
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