A new species of Aplectana Railliet & Henry, 1916 (Nematoda: Cosmocercidae) in the Brazilian Amazon and the taxonomic status of Aplectana longa

Author:

Santos Ana Nunes1ORCID,Borges Ewerton dos Santos1ORCID,Willkens Yuri1ORCID,Santos Jeannie Nascimento dos1ORCID,Costa-Campos Carlos Eduardo2ORCID,Melo Francisco Tiago de Vasconcelos1ORCID

Affiliation:

1. Universidade Federal do Pará, Brasil

2. Universidade Federal do Amapá, Brasil

Abstract

Abstract Nematodes of the genus Aplectana Railliet & Henry, 1916 are common parasites of the digestive tract of amphibians and reptiles in the Neotropical region. During a parasite survey on Boana boans (Linnaeus, 1758), we found specimens of nematodes with Aplectana characteristics. We observed a set of characteristics that differs the species of our study from its congeners, and the present study describes a new species of Aplectana parasite of B. boans using light microscopy and scanning electron microscopy. Aplectana pella n. sp. has lateral alae and somatic papillae in males and females; males have equal short spicules, and the gubernaculum is absent. The arrangement of pairs of caudal papillae also differs from other species (2 precloacal,1 adcloacal, and 5 postcloacal+1 unpaired). In females, the vulva is simple, with non-prominent lips, and equatorial. This is the first record of the genus Aplectana parasitizing B. boans and the 58th species described for this genus. Additionally, we added the precloacal papillae pattern of A. delirae, and based on morphological and morphometric characteristics, we propose the reallocation of Aplectana longa to the genus Oxyascaris.

Publisher

FapUNIFESP (SciELO)

Subject

General Veterinary,Parasitology

Reference31 articles.

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