Über <i>Rhabdias Bufonis</i> (Schrank, 1788) und die Abtrennung von <i>Rhabdias Dossei</i> nov. spec. (Nematoda, Rhabdiasidae)

Hartwich, Gerhard

doi:10.1002/mmnz.19720480206

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…R. bufonis recorded in the present study has a longer body (9.86 vs. 8.35 mm), a shorter esophagus (270–630 vs. 690–790) and a longer buccal capsule (13–41 vs. 8–10 mm) than R. picardiae and differ from R. africanus in the body size and the absence of two lateral pseudolabia. The present form, differs from the description of R. bufonis given by Travassos (1930) and Hartwich (1972) in the body length (3.22–9.86 vs. 9–12) and in the size of buccal capsule which is of diagnostic importance ( Lhermitte-Vallarino et al, 2008 ; Junker et al, 2010 ). The current study introduced new morphological characteristics for the nematode R. bufonis isolated from the lung of A. regularis based on SEM.…”

Section: Discussioncontrasting

confidence: 91%

Rhabdias bufonis(Rhabdiasidae) from the lung of the African common toad,Amietophrynus regularis(Bufonidae) in Egypt: new data on the basis of light and scanning electron microscopic study

Morsy

Mohamed

Abdel-Ghaffar

et al. 2018

PeerJ

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Background and AimsRhabdias sp. (Rhabdiasidae) is a nematode parasite of family Rhabdiasidae infecting the lung of amphibians. The present study provides new morphological details for Rhabdias bufonis isolated from the lungs of the African common toad, Amietophrynus regularis based on observations of light and scanning electron microscopy (SEM).MethodsForty specimens were collected from its natural habitat: the damp, moist fields and gardens at Giza governorate, Egypt. Worms were isolated from the lungs, fixed and then preserved. They were examined using light and SEM with further line drawings.ResultsFourteen specimens (35%) were found to harbor Rhabdias with an intensity of three to five worms per host. Bodies of the gravid females were elongated, slender, measured 3.22–9.86 (5.64 ± 0.03) long and 0.09–0.48 (0.23 ± 0.02) wide at mid-length. Buccal capsule was with cylindrical lumen and sclerotized walls. Ovaries were almost straight. The uteri were located anterior and posterior to the vulva. Uterus were filled with a large number of eggs (17–42). Eggs were oval in shape and some of them were with fully developed larvae inside. The tail was comparatively short, gradually tapered. SEM showed that worms possessed an oval anterior end with a simple, slit like oral opening. The lipless edges of the mouth opening were bordered with tiny cuticular elevations, radiated outwards. Two pairs of submedian cephalic papillae were observed around the oral opening as well as two amphids.ConclusionThe current study presents new morphological details for R. bufonis isolated from the African common toad. Also, the morphology of the slit-like mouth opening, the two pairs of cephalic papillae, two amphids and the three pairs of cuticular elevations supporting the area around mouth opening were investigated.

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Section: Discussioncontrasting

confidence: 91%

Rhabdias bufonis(Rhabdiasidae) from the lung of the African common toad,Amietophrynus regularis(Bufonidae) in Egypt: new data on the basis of light and scanning electron microscopic study

Morsy

Mohamed

Abdel-Ghaffar

et al. 2018

PeerJ

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“…bufonis given by Travassos (1930) and Hartwich (1972) in the body length (3.22-9.86 vs 9-12) and in the size of buccal capsule which is of diagnostic importance (Lhermitte-Vallarino et al, 2008, Junker et al, 2010. The current study introduced new morphological characteristics for the nematode Rhabdias bufonis isolated from the lung of Amietophrynus regularis based on scanning electron microscopy.…”

Section: Discussionmentioning

confidence: 88%

Rhabdias bufonis (Rhabdiasidae) from the lung of the African common toad, Amietophrynus regularis (Bufonidae) in Egypt. New data on the basis of light and scanning electron microscopic study

Morsy

Ali

Ghaffar

et al. 2018

Preprint

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Rhabdias esculentarum n. sp. (Nematoda: Rhabdiasidae) from green frogs of the Rana esculenta species complex in Italy: molecular evidence, morphological description and genetic differentiation from its congeners in frogs and toads

et al. 2012

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A new taxon, Rhabdias esculentarum n. sp., is described based on DNA sequence analysis at multiple loci (i.e. mtDNA cox-1, 12S rRNA, ITS-1 and partial ITS-2 regions of the nuclear rDNA) and morphometric analysis carried out on specimens collected from the green frogs of the Rana esculenta species complex in Italy (i.e. R. lessonae Camerano and R. esculenta Linnaeus, identified genetically by diagnostic allozyme loci). Rhabdias esculentarum n. sp. was differentiated genetically, at both mitochondrial and nuclear levels, from Rh. bufonis (Schrank, 1788) (sensu Hartwich, 1972) and Rh. sphaerocephala Goodey, 1924 recovered from the toad Bufo bufo Linnaeus collected sympatrically with the specimens of Rana lessonae and R. esculenta examined in the present study. Moreover, the new taxon proved to be different from the other species of Rhabdias from anurans, which had previously been sequenced using the same genes and deposited in GeneBank. Phylogenetic analyses (MP and ML) inferred from mitochondrial (mtDNA cox-1 and 12S ribosomal RNA) and nuclear (ITS-1 and ITS-2 of the rDNA regions) sequences datasets were congruent in depicting Rh. esculentarum n. sp. as forming a highly supported clade distinct from the sympatric species Rh. bufonis, as well as from Rh. sphaerocephala, characterised on the basis of the same loci. Morphometric analysis and the differential diagnosis of genetically characterised specimens of the new species have revealed differences in several features in comparison with the type-species, Rh. bufonis. Material of the latter species included voucher specimens from Germany deposited by Hartwich (1972) and other specimens collected from B. bufo in Italy. Among the diagnostic characters, the particular cup-shaped buccal capsule characterising Rh. esculentarum is clearly different from the tear-shaped buccal capsule observed in material of R. bufonis obtained from Berlin Museum and collected in the same geographical area as the green frogs under study. Rh. esculentarum was also found to differ in some measurements and allometric characters from Rh. bufonis (sensu Moravec et al., 1997). The data so far collected appear to indicate a host-preference of Rh. esculentarum for Rana lessonae and R. esculenta, which belong to the R. esculenta hybridogenetic species complex in Italy.

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Über Rhabdias Bufonis (Schrank, 1788) und die Abtrennung von Rhabdias Dossei nov. spec. (Nematoda, Rhabdiasidae)

Cited by 6 publications

References 5 publications

Rhabdias bufonis(Rhabdiasidae) from the lung of the African common toad,Amietophrynus regularis(Bufonidae) in Egypt: new data on the basis of light and scanning electron microscopic study

Rhabdias bufonis(Rhabdiasidae) from the lung of the African common toad,Amietophrynus regularis(Bufonidae) in Egypt: new data on the basis of light and scanning electron microscopic study

Rhabdias bufonis (Rhabdiasidae) from the lung of the African common toad, Amietophrynus regularis (Bufonidae) in Egypt. New data on the basis of light and scanning electron microscopic study

Rhabdias esculentarum n. sp. (Nematoda: Rhabdiasidae) from green frogs of the Rana esculenta species complex in Italy: molecular evidence, morphological description and genetic differentiation from its congeners in frogs and toads

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