On a Reconstruction of the Genus Camallanus Railliet and Henry, 1915

Liang-Sheng, Yeh

doi:10.1017/s0022149x00020435

Cited by 33 publications

(9 citation statements)

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“…He pointed out similarities in the structure of the buccal capsule on which the submedian ridges in C. chelonius tend to form dorsal and ventral groups, a feature characteristic of Serpinema spp. (Yeh 1960). The same pattern exists in Camallanus spp.…”

Section: Camallanus Waelhreow Rigby Et Sharma 2008supporting

confidence: 53%

“…Some species are known from amphibians and reptiles, including turtles (Ivashkin et al 1971, Petter 1979. Yeh (1960) erected the genus Serpinema Yeh, 1960 which includes turtle parasites with characteristic buccal capsules that possess a gap between the dorsal and ventral groups of ridges on each of the buccal capsule valves. Baker (1983) described Camallanus chelonius Baker, 1983 from the South-African side-necked turtle Pelusios sinuatus (Pleurodira, Pelomedusidae).…”

Section: Introductionmentioning

confidence: 99%

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Camallanus Railliet et Henry, 1915 (Nematoda, Camallanidae) from Australian freshwater turtles with descriptions of two new species and molecular differentiation of known taxa

Kuzmin¹,

Tkach²,

Snyder³

et al. 2011

Acta Parasitologica

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Two new species of Camallanus are described from Australian freshwater turtles. Camallanus beveridgei sp. nov. is reported from Elseya dentata in Northern Territory. It differs from other species of the genus parasitic in turtles by several characters including the shape of the median ridge in the buccal capsule and the position of the anterior pair of caudal papillae in males. Camallanus sprenti sp. nov. is reported from Elseya latisternum (type host) and Emydura krefftii in northern Queensland. It is closely related to Camallanus tuckeri, and differs from the latter species in possessing a shorter oesophagus. We summarize data on morphology, distribution and specificity of 5 known Camallanus spp. from Australian turtles and provide a key for their identification. Sequence comparison of more than 500 base pairs at the 5' end of the nuclear 28S rDNA gene confirms the status of C. sprenti and C. beveridgei as new species. Camallanus sprenti differs from the other 4 species of Camallanus from Australian turtles by 16-59 bases (3.1-11.5%) while C. beveridgei differed from the other 4 species by 23-60 bases (4.5-11.6%). Phylogenetic analysis demonstrates close interrelationships among C. tuckeri, C. sprenti and C. beveridgei, the three species with most similar buccal capsules.

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Section: Camallanus Waelhreow Rigby Et Sharma 2008supporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Camallanus Railliet et Henry, 1915 (Nematoda, Camallanidae) from Australian freshwater turtles with descriptions of two new species and molecular differentiation of known taxa

Kuzmin¹,

Tkach²,

Snyder³

et al. 2011

Acta Parasitologica

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“…Various workers have given the key to the genus Procamallanus . Such keys have been modified after proper amendment in view of the work of Olsen (1952) andYeh Liang Sheng (1960). A new subgenus Spirocamallanus has been added to the existing list of four subgenera created by Ali in 1960 .…”

mentioning

confidence: 99%

“…In the same year i. e., 1960 Yeh Liang Sheng wrote on a reconstruction of the genus Camallanus in which he divided Carnallanidae into two subfamilies, Procamallaninae and Spirocamallanus while the latter includes Camallanus (Railliet and Henry, 1915), Camallanides (Baylis and Daubney, 1922), Procamallanus (Yorke and Maplestone, 1926), Piscilanid gen. nov, Serpenema, gen. nov, and Zeylanema Yeh, 1960 The key to the genus Procamallanus has been given by Annereaux (1946), Khera (1955), Aui (1956;1960).…”

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confidence: 99%

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On a New Key of the Genus Procamallanus With a Historical Review

Sahay

1966

JJMSB

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Representatives of Batrachocamallanus n. g. (Nematoda: Procamallaninae) from Xenopus spp. (Anura: Pipidae): geographical distribution, host range and evolutionary relationships

Jackson

Tinsley

1995

Syst Parasitol

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The great majority of the Procamallaninae occur in teleosts from tropical regions; however, representatives of this group are also frequent parasites of aquatic clawed toads (Xenopus spp.) in Africa. The taxonomic status of procamallanines from different Xenopus spp. and their geographical distribution is reviewed. Batrachocamallanus n. g. is created to include forms from amphibians with large numbers of mucrons on the female tail and relatively small body size. B. occidentalis n. sp. and B. siluranae n. sp. are described, while Procamallanus brevis Kung, 1948, originally recorded from an unidentified African amphibian, is considered a synonym of B. slomei (Southwell & Kirshner, 1937) n. comb. Due to the presence of spiral thickenings on its buccal capsule, B. xenopodis (Baylis, 1929) n. comb. has previously been placed in the genus Spirocamallanus Olsen, 1952. However, this species shares the apomorphic presence of numerous mucrons on the female tail, and almost identical cephalic morphology, male caudal structures and female reproductive system with other procamallanines from clawed toads. This suggests that they represent a monophyletic grouping. There is also only limited morphometric differentiation between B. xenopodis and the other proposed representatives of Batrachocamallanus (supported by a multivariate analysis of male and female specimens), which further indicates a close relationship between them. Great variability in the presence and type of buccal capsule thickenings occurs within Batrachocamallanus. Members of this genus most closely resemble the African species Procamallanus laeviconchus (Wedl, 1862), which exhibits a smooth buccal capsule similar to that ofB. siluranae. Buccal capsule thickenings of the remaining Batrachocamallanus spp. probably arose independently from those described in other procamallanines. Such characters may be evolutionarily unstable and an unsuitable basis for generic classification in this subfamily. Although B. siluranae is the only Batrachocamallanus species to occur in X. tropicalis-like hosts (which represent a separate lineage from other clawed toads), its distribution, and that of its congeners, may be determined more by host-independent ecological or biogeographical factors than by an association with host phylogeny. Thus, B siluranae occurs in Xenopus spp. from tropical rain forest (including those from other host lineages) while the other forms are typically found in savanna or montane forest, and in the cases of B. slomei and B. xenopodis at least, do not show narrow host specificity to particular clawed toad taxa. Although more than one Batrachocamallanus spp. were found in X. laevis, X. muelleri and X. fraseri-like clawed toads, co-existence at the same locality never occurred, perhaps indicating a high degree of interspecific ecological segregation.

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On a Reconstruction of the Genus Camallanus Railliet and Henry, 1915

Cited by 33 publications

References 1 publication

Camallanus Railliet et Henry, 1915 (Nematoda, Camallanidae) from Australian freshwater turtles with descriptions of two new species and molecular differentiation of known taxa

Camallanus Railliet et Henry, 1915 (Nematoda, Camallanidae) from Australian freshwater turtles with descriptions of two new species and molecular differentiation of known taxa

On a New Key of the Genus Procamallanus With a Historical Review

Representatives of Batrachocamallanus n. g. (Nematoda: Procamallaninae) from Xenopus spp. (Anura: Pipidae): geographical distribution, host range and evolutionary relationships

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