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

Abstract

The genusLinton, 1910 comprises species which parasitize herbivorous kyphosid fish. In the present study, a new species is described based on fresh specimens collected fromfrom 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 placen. sp. as sister of, corroborating the morphological analyses.(=) previously described fromspp. from Rio de Janeiro is now consideredn. sp. The new species represents the only South American species so far described for this genus.