Helminth parasites of amphibians from a rainforest reserve in southwestern Nigeria

Aisien, M.S.O.; Ogoannah, S. O.; Imasuen, A.A.

doi:10.1080/15627020.2009.11407434

Cited by 11 publications

(12 citation statements)

References 1 publication

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“…Tinsley & Jackson (1998) reported another polystome from this region, namely Protopolystoma occidentalis from Xenopus muelleri . Recently Aisien et al (2003, 2004a, b, 2009) reported on other polystomes from Nigeria. Apart from Protopolystoma , other polystomes known from Nigeria include Polystoma prudhoei Saoud, 1967 from Amietophrynus regularis , P. galamensis Euzet, Bourgat & Salami-Cadoux, 1974 from Rana galamensis , Eupolystoma alluaudi (de Beauchamp, 1913) from Amietophrynus regularis and A. maculatus , Metapolystoma cachani Gallien, 1956 from Ptychadena longirostris , and unidentified Polystoma spp.…”

Section: Introductionmentioning

confidence: 99%

Polystoma okomuensisn. sp. (Monogenea: Polystomatidae) from Boulenger's striped frog,Phlyctimantis boulengeri(Perret, 1986) in Nigeria

2010

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Polystoma okomuensis is described as a new species of the Polystomatidae parasitic in the urinary bladder of Boulenger's striped frog Phlyctimantis boulengeri in the Okomu National Park, Edo State, Nigeria. Although other African polystomes have been reported from Nigeria, this is the first to be described from the country and the first from Phlyctimantis. It is distinguished from other African Polystoma species by a combination of characters, including the body size, size and shape of the hamuli, size and shape of marginal hooklets and intestinal location. Phlyctimantis boulengeri was found to be infected in two of four seasonal lakes where specimens were caught with prevalences and mean intensities ranging from 14.3 to 22% and 1.0 to 1.5, respectively. Of the total number of 45 frogs examined, the prevalence was 15.6% and mean intensity 1.4.

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Section: Introductionmentioning

confidence: 99%

Polystoma okomuensisn. sp. (Monogenea: Polystomatidae) from Boulenger's striped frog,Phlyctimantis boulengeri(Perret, 1986) in Nigeria

2010

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“…Three species have been reported to mature exclusively in the lungs of toads, Raillietiella bufonis in Puerto Rican Peltophryne lemur (formerly Bufo lemur ) [4]; Raillietiella indica in Hawaiian Rhinella marina (formerly Bufo marinus ) [5]; and Raillietiella rileyi in Malaysian Duttaphrynus melanostictus (formerly Bufo melanostictus ) [6]. Further to these three well-established host-parasite associations, Raillietiella freitasi , generally known from lizards, has been reported in Brazilian Rhinella schneideri (formerly Bufo paracnemis ) [7], and a single unidentified raillietiellid was recovered from the lungs of Nigerian Amietophrynus regularis (formerly Bufo regularis ) [8]. There are no recorded amphibian hosts for raillietiellids within Australia, but three raillietiellids mature in reptiles: Raillietiella amphiboluri infects a native dragon, Pogona barbata [9]; Raillietiella scincoides infects a native skink, Tiliqua scincoides [10] and a native gecko, Nephrurus laevissimus [11], and Raillietiella frenatus infects an introduced gecko, Hemidactylus frenatus , and a native gecko, Gehyra australis [12].…”

Section: Introductionmentioning

confidence: 99%

Using Combined Morphological, Allometric and Molecular Approaches to Identify Species of the Genus Raillietiella (Pentastomida)

et al. 2011

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Taxonomic studies of parasites can be severely compromised if the host species affects parasite morphology; an uncritical analysis might recognize multiple taxa simply because of phenotypically plastic responses of parasite morphology to host physiology. Pentastomids of the genus Raillietiella are endoparasitic crustaceans primarily infecting the respiratory system of carnivorous reptiles, but also recorded from bufonid anurans. The delineation of pentastomids at the generic level is clear, but the taxonomic status of many species is not. We collected raillietiellids from lungs of the invasive cane toad (Rhinella marina), the invasive Asian house gecko (Hemidactylus frenatus), and a native tree frog (Litoria caerulea) in tropical Australia, and employed a combination of genetic analyses, and traditional and novel morphological methods to clarify their identity. Conventional analyses of parasite morphology (which focus on raw values of morphological traits) revealed two discrete clusters in terms of pentastome hook size, implying two different species of pentastomes: one from toads and a tree frog (Raillietiella indica) and another from lizards (Raillietiella frenatus). However, these clusters disappeared in allometric analyses that took pentastome body size into account, suggesting that only a single pentastome taxon may be involved. Our molecular data revealed no genetic differences between parasites in toads versus lizards, confirming that there was only one species: R. frenatus. This pentastome (previously known only from lizards) clearly is also capable of maturing in anurans. Our analyses show that the morphological features used in pentastomid taxonomy change as the parasite transitions through developmental stages in the definitive host. To facilitate valid descriptions of new species of pentastomes, future taxonomic work should include both morphological measurements (incorporating quantitative measures of body size and hook bluntness) and molecular data.

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“…While not many comprehensive studies have been conducted on the helminth fauna of amphibians and reptiles in the Afrotropics, there have been some localised studies as well as literature surveys with regard to helminth parasites in these host groups (e.g. Myers et al, 1960;Hering-Hagenbeck & Boomker, 2000;Canaris & Gardner, 2003;Aisien et al, 2004Aisien et al, , 2009McAllister et al, 2010). Interestingly, none of these list members of Meteterakis, despite the fact that the checklist of Hering-Hagenbeck & Boomker (2000), for example, represented 20 snake and 21 lizard species, including members of the four saurian families known to be hosts of Meteterakis spp.…”

Section: Discussionmentioning

confidence: 99%

Meteterakis saotomensis n. sp. (Nematoda: Heterakidae) from Schistometopum thomense (Bocage) (Gymnophiona: Dermophiidae) on São Tomé Island

et al. 2015

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Meteterakis saotomensis n. sp. is described from Schistometopum thomense (Bocage), a gymnophionan endemic to the oceanic island of São Tomé in the Gulf of Guinea. The specimens were assigned to Meteterakis Karve, 1930, based on the possession of a head with three rounded lips, not set-off from the body, the absence of interlabia and cordons, females with a long vagina and males with a preanal sucker, surrounded by a cuticularised rim and caudal alae that are supported by fleshy papillae. The new species is characterised by: body length 4.2-4.5 mm (males) and 5.1-6.4 mm (females); total length of oesophagus, including pharyngeal portion and oesophageal bulb, 820-856 µm (males) and 898-1,070 µm (females); length of pharynx 57-58 µm (males) and 65-68 µm (females); spicules equal, 410-521 µm long, with tessellated ornamentation throughout their length and alae, and with bevelled tip; gubernaculum or 'gubernacular mass' absent; tail length 164-176 µm (males) and 214-239 µm (females), with elongated tip; vulva at 2.3-2.8 mm from anterior end, with anterior lip forming small flap. This is the second species of Meteterakis reported from gymnophionan hosts and the first from the Afrotropical region. Selected comparative morphological data for Meteterakis spp. are presented, and data on host range and geographic distribution are updated. The name M. striaturus Oshmarin & Demshin, 1972 is corrected to M. striatura to reflect the female gender of the genus name.

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Helminth parasites of amphibians from a rainforest reserve in southwestern Nigeria

Cited by 11 publications

References 1 publication

Polystoma okomuensisn. sp. (Monogenea: Polystomatidae) from Boulenger's striped frog,Phlyctimantis boulengeri(Perret, 1986) in Nigeria

Polystoma okomuensisn. sp. (Monogenea: Polystomatidae) from Boulenger's striped frog,Phlyctimantis boulengeri(Perret, 1986) in Nigeria

Using Combined Morphological, Allometric and Molecular Approaches to Identify Species of the Genus Raillietiella (Pentastomida)

Meteterakis saotomensis n. sp. (Nematoda: Heterakidae) from Schistometopum thomense (Bocage) (Gymnophiona: Dermophiidae) on São Tomé Island

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