Kalipharynx Piramboae Gen. Et Sp. N. (Trematoda : Fellodistomidae) Parasita Do Peixe Pulmonado Amazônico Lepidosiren Paradoxa Fitzinger

Abstract

Resumo Kalipharynx piramboae gen. e sp. n. (Trematoda: Fellodistomidae) é descrito do peixe pulmonado Amazônico chamado piramboia, Lepidosiren paradoxa (Dipnoi: Lepidosirenidae). O novo gênero distingue-se dos demais gêneros da família por apresentar uma faringe musculosa com projeções digitiformes anteriores. Entre os gêneros desta família, Kalipharynx assemelha-se mais com Heterorchis Baylis, 1915, do qual, além da faringe, se distingue por ter: 1) Um acetábulo maior; 2) Um poro excretor pequeno e terminal; 3) Uma vesícula seminal sacular não bipartida; e 4) Um hospedeiro de diferente gênero e continente. K. piramboae é o primeiro trematódeo adulto citado em L. paradoxa.

Two new species of Cephalogonimidae Looss, 1899 (Digenea: Plagiorchioidea) from Africa (Mozambique and Guinea), including a new phylogenetic hypothesis for related plagiorchioids

“… Baylis (1915) tentatively classified the genus in the Plagiorchiidae based on a general collection of features that conform to species in the plagiorchioid group: a scaled tegument, configuration of the alimentary tract, Y-shaped excretory bladder, small operculated tanned eggs, and a marginal anterior genital pore on the left side. Subsequent workers have either tentatively agreed with Baylis ( Dollfus, 1950 ; Prudhoe and Bray, 1982 ; Bray, 1988 ) or classified the genus in the Fellodistomatidae ( Yamaguti, 1953 , 1958 , 1971 ; Thomas, 1958b ; Fischthal and Thomas, 1968 ; Vassiliadès and Richard, 1970 ; Boeger and Thatcher, 1983 ). The modern concept of the Fellodistomatidae entails a marine life history and the absence of a designated seminal receptacle (see Bray, 2002 ), both of which are violated by Heterorchis spp., which are entirely freshwater, and all have a prominent seminal receptacle.…”

“…The modern concept of the Fellodistomatidae entails a marine life history and the absence of a designated seminal receptacle (see Bray, 2002 ), both of which are violated by Heterorchis spp., which are entirely freshwater, and all have a prominent seminal receptacle. A fluke ( Kalipharynx piramboae Boeger & Thatcher, 1983) discovered infecting South American lungfish, Lepidosiren paradoxa Fitzinger (Lepidosirenidae) from the Amazon region of Brazil may represent the closest relative to Heterorchis ( Boeger and Thatcher, 1983 ). Kalipharynx piramboae is a monotypic species, and like Heterorchis , Kalipharynx Boeger & Thatcher, 1983 is presently considered incertae sedis in the Plagiorchioidea (Tkach in Pojmańska et al, 2008 ).…”

Biología de metacercarias <i>Kalipharynx</i> sp. (Trematoda: Digenea) en <i>Biomphalaria</i> (Gasteropoda: Planorbidae) del noreste argentino

“…Metacercariae were stained with alcoholic hydrochloric carmine, dehydrated in a graded ethyl alcohol series, cleared in creosote and mounted in Canada balsam. Systematic determination of metacercariae was carried out following Boeger & Thatcher (1983), based on descriptions about genus Kalipharynx Boeger & Thatcher, 1983. The characteristics considered for systematic determination were pharynx large, strongly muscled and with digitiform processes anteriorly, acetabulum large preequatorial, testes diagonal post-acetabular and post-ovarian, cirrus-sac long and genital pore ventro-lateral between suckers (Fig.…”

“…The genus Kalipharynx is considered as incertae sedis because it is not yet clear in which family it should be included (Pojmanska, Tkach & Gibson, 2008). Adult specimens of the type species of this genus (K. piramboae Boeger & Thatcher, 1983) were found in Chaco province, Argentina (Lunaschi, 1994) parasitizing lungfishes Lepidosiren paradoxa Fitzinger, 1837. The life cycle of this parasite is not known, but cercariae and metacercariae are reported with similar morphological characteristics parasitizing snails of genus Biomphalaria in Corrientes province, Argentina (Ostrowski de Núñez, et al, 1990).…”