Classification of pleurodire polystomes (Platyhelminthes, Monogenea, Polystomatidae) revisited with the description of two new genera from the Australian and Neotropical Realms

Preez, Louis H. Du; Domingues, Marcus V.; Verneau, Olivier

doi:10.1016/j.ijppaw.2022.09.004

Cited by 6 publications

(8 citation statements)

References 31 publications

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“…According to Du Preez et al (2022) , the inter-vaginal distance that corresponds to Polystomoides infecting cryptodires ranges from 84.2-99.4% and the intervaginal distance observed in P. santamariensis fits this range. Nonetheless, these authors stated that the number of genital spines for Polystomoides infecting cryptodires ranges from 24 to 44, which is not in agreement to the number presented in the specimens described herein.…”

Section: Resultsmentioning

confidence: 99%

“…none ( Vieira et al, 2008 ; Du Preez & Van Rooyen, 2015 ; Du Preez & Verneau, 2020 ; Chaabane et al, 2022 ). Only recently, the polystomatid genera parasitizing chelonians received considerable attention, with the description of Uropolystomoides ; Uteropolystomoides ; Aussietrema ; Fornixtrema ; Apaloneotrema ; Manotrema and Pleurodirotrema ; and the synonymizing of Neopolystoma to a junior synonym of Polystomoides [see Tinsley (2017) ; Tinsley & Tinsley (2016) ; Du Preez & Verneau (2020) ; Du Preez et al (2022) ]. Some species previously allocated in Polystomoides were transferred to Uropolystomoides , Uteropolystomoides , and Manotrema based in one or more characteristics ( Du Preez et al, 2022 ; Price, 1939 ; Tinsley, 2017 ; Tinsley & Tinsley, 2016 ).…”

Section: Discussionmentioning

confidence: 99%

“…Only recently, the polystomatid genera parasitizing chelonians received considerable attention, with the description of Uropolystomoides ; Uteropolystomoides ; Aussietrema ; Fornixtrema ; Apaloneotrema ; Manotrema and Pleurodirotrema ; and the synonymizing of Neopolystoma to a junior synonym of Polystomoides [see Tinsley (2017) ; Tinsley & Tinsley (2016) ; Du Preez & Verneau (2020) ; Du Preez et al (2022) ]. Some species previously allocated in Polystomoides were transferred to Uropolystomoides , Uteropolystomoides , and Manotrema based in one or more characteristics ( Du Preez et al, 2022 ; Price, 1939 ; Tinsley, 2017 ; Tinsley & Tinsley, 2016 ). All the South American species of Polystomoides infecting the oral region Pleurodira freshwater turtles were transferred to Manotrema: Manotrema uruguayensis (Mané-Garzón & Gil, 1961), Manotrema fuquesi (Mané-Garzón & Gil, 1962) and Manotrema brasiliensis ( Vieira et al, 2008 ) ( Du Preez et al, 2022 ).…”

Section: Discussionmentioning

confidence: 99%

“…viruses, bacteria, hemoparasites and helminths). Among these, Polystomatidae (Platyhelminthes: Monogenoidea) is the largest family of monogenoideans and comprises 32 genera, among which Apaloneotrema Du Preez & Verneau, 2020, Aussietrema Du Preez & Verneau, 2020, Fornixtrema Du Preez & Verneau, 2020, Manotrema Du Preez, Domingues & Verneau, 2022, Pleurodirotrema Du Preez, Domingues & Verneau, 2022, Polystomoidella Price, 1939, Polystomoides Ward, 1917, Uropolystomoides Tinsley & Tinsley, 2016 and Uteropolystomoides Tinsley, 2017 infect freshwater turtles (Morrison & Du Preez, 2011;Chaabane et al, 2022;Du Preez et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…The order Testudines comprises turtles, tortoises and terrapins (freshwater turtles) and is composed of two suborders: Pleurodira and Cryptodira. The first has distribution only in the southern hemisphere, across the Australian, Ethiopian and Neotropical Realms, while Cryptodira has the largest number of living species, with distribution on all continents, with the exception of Australia and Antarctica ( Van Dijk et al, 2014 ; Rhodin et al, 2021 ; Du Preez et al, 2022 ). In Brazil, 36 species of Testudines have been described ( Costa & Bérnils, 2018 ) and in the state of Rio Grande do Sul, there are 11 chelonian species, among which five are marine and six are freshwater species ( Lema & Ferreira, 1990 ).…”

Section: Introductionmentioning

confidence: 99%

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New species of Polystomoides (Monogenoidea: Polystomatidae) parasitizing the urinary bladder of a freshwater turtle in Brazil

Lignon

Cohen

Justo

et al. 2023

Rev. Bras. Parasitol. Vet.

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Trachemys dorbigni is the most abundant freshwater turtle species in Rio Grande do Sul, southern Brazil. Chelonians are known to host a wide variety of pathogens, including viruses, bacteria, hemoparasites and helminths. Among these, nine genera of polystomatid flatworms (Monogenoidea; Polystomatidae) infect freshwater turtles: Apaloneotrema, Aussietrema, Fornixtrema, Manotrema, Pleurodirotrema, Polystomoidella, Polystomoides, Uropolystomoides and Uteropolystomoides. However, little is known about the biology of these parasites in the Neotropical Realm. Through investigative cystoscopy, specimens of Polystomatidae were located inside the urinary bladder of the host T. dorbigni. Retrieved specimens were fixed and stained whole mounts prepared for taxonomic identification. In the present paper, a new species of Polystomoides (Monogenoidea: Polystomatidae) parasitizing the urinary bladder of a freshwater turtle of the species T. dorbigni in Brazil is described. Polystomoides santamariensis n. sp. differs from the congeneric species on the length of the genital spines, which are longer. Given the enormous diversity of freshwater turtles around the world, it is likely that a large number of chelonian polystomatids are still unknown.

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Section: Resultsmentioning

confidence: 99%