Description of a new species of Chabaudus Inglis and Ogden, 1965 (Nematoda: Seuratoidea) from the frog Euphlyctis cyanophlyctis from Dehrandun, Uttarakhand, India

Rizvi, Anjum N.; Bursey, Charles R.; Maity, Pallab

doi:10.1515/ap-2016-0009

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“…To date, six species of Chabaudus are known, four of which occur in Africa: C. chabaudi Inglis et Ogden, 1965 and C. thysi (Puylaert, 1970) from catfishes Heterobranchus bidorsalis Geoffroy Saint-Hilaire (Clariidae) in Sierra Leone and Parauchenoglanis punctatus (Boulenger) (Claroteidae) in the Democratic Republic of Congo, respectively Ogden 1965, Puylaert 1970a), and C. leberrei and C. williamsi (Puylaert, 1970a) from amphibians in Togo, Sudan and Swaziland, and from Sierra Leone, respectively (see Rizvi et al 2016). Two other species of this genus, C. alaini Alfonso-Roque, 1981 and C. dehradunensis Rizvi, Bursey et Maity, 2016, are known from amphibians in Indonesia and India, respectively (see Rizvi et al 2016).…”

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confidence: 99%

“…Two other species of this genus, C. alaini Alfonso-Roque, 1981 and C. dehradunensis Rizvi, Bursey et Maity, 2016, are known from amphibians in Indonesia and India, respectively (see Rizvi et al 2016).…”

Section: Figs 10-12mentioning

confidence: 99%

“…n., G. chabaudi (Inglis et Ogden, 1965) comb. n., G. dehradunensis (Rizvi, Bursey et Maity, 2016) comb. n., G. thysi (Puylaert, 1970) comb.…”

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Some nematodes from freshwater fishes in central Africa

Moravec

Jirků

2017

FOLIA PARASIT

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Twenty species (sixteen adult and four larval) of parasitic nematodes belonging to the Ascaridoidea, Camallanoidea, Cosmocercoidea, Dioctophymatoidea, Habronematoidea, Oxyuroidea, Seuratoidea, and Thelazioidea were collected from freshwater fishes of the Congo River basin in the Democratic Republic of the Congo and the Central African Republic in 2008 and 2012, respectively. Based on light and scanning electron microscopical examination, many species are redescribed in detail. This material also contained four previously unknown species, Labeonema longispiculatum sp. n. from Synodontis acanthomias Boulenger, Gendria longispiculata sp. n. from Schilbe grenfelli (Boulenger), G. sanghaensis sp. n. from Schilbe marmoratus Boulenger, and Cucullanus congolensis sp. n. from Auchenoglanis occidentalis (Valenciennes). The new species L. longispiculatum is mainly characterised by conspicuously long (210-228 µm) spicules, approximately twice as long as those in other congeners, the length (45-48 µm) of the gubernaculum and the host family (Mochokidae), whereas G. longispiculata by very long (1.2 mm) spicules, the shape of the oesophagus and cephalic vesicle, distribution of postanal papillae and the host family (Schilbeidae). Main characteristic features of G. sanghaensis are the presence of a hexagonal oral aperture surrounded by lip-like structures, the posterior portion of the oesophagus moderately expanded, spicules and the gubernaculum 414-438 µm and 54-57 µm long, respectively, deirids located at the level of the posterior end of the oesophagus and the absence of cervical alae. Cucullanus congolensis differs from congeneric species parasitising African freshwater and brackish-water fishes mainly in the absence of a ventral precloacal sucker and lateral preanal papillae, the presence of a large median precloacal papilla-like formation, spicules 480-489 µm long and the location of the excretory pore in the region of the oesophago-intestinal junction. Chabaudus Inglis et Ogden, 1965 is considered a junior synonym of Gendria Baylis, 1930 and, consequently, species listed in the former genus are transferred to the latter as G. alaini (Alfonso-Roque, 1981) comb. n., G. chabaudi (Inglis et Ogden, 1965) comb. n., G. dehradunensis (Rizvi, Bursey et Maity, 2016) comb. n., G. thysi (Puylaert, 1970) comb. n. and G. williamsi (Puylaert, 1970 comb. n. The findings represent many new host and geographical records.Keywords: helminth parasites, taxonomy, new taxa, Osteichthyes, Congo River basinThe present knowledge of nematodes parasitising freshwater fishes in Africa is still very incomplete (Moravec and Scholz 2017). Particularly regarding the parasite fauna in the Congo River basin, from where some papers describing mostly a single nematode species have been published (e.g. Taylor 1925, Baylis 1928, Rodhain and Vuylsteke 1934, Schuurmans Stekhoven 1937, Puylaert 1970a, but the number of studies currently is incipient. The most important study at the referred region was the comprehensive survey of Campana-Rouget (1961) o...

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Section: Figs 10-12mentioning

confidence: 99%

Section: Figs 10-12mentioning

confidence: 99%