n. sp. (Enenteridae) in (Kyphosidae) off the Rio de Janeiro coast, Brazil.

J Helminthol

Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil.

Published: January 2025

The genus Linton, 1910 comprises species which parasitize herbivorous kyphosid fish. In the present study, a new species is described based on fresh specimens collected from from Rio de Janeiro. The new species is characterized by having the oral sucker infundibuliform with 10 lobes, prepharynx two times longer than pharynx, presence of oesophagus, testes slightly lobed, round ovary and rectum with muscular sphincter connected to the anus. New genetic sequences include partial 18S and 28S rDNA and ITS1-5.8S-ITS2. The phylogenetic analyses place n. sp. as sister of , corroborating the morphological analyses. (=) previously described from spp. from Rio de Janeiro is now considered n. sp. The new species represents the only South American species so far described for this genus.

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http://dx.doi.org/10.1017/S0022149X24000816DOI Listing

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