Revision Der Vogelparasitischen Nematoden Mitteleuropas. II. Die Gattung Contracaecum Railliet &amp; Henry, 1912 (Ascaridoidea)

Hartwich, Gerhard

doi:10.1002/mmnz.4830400104

Cited by 19 publications

(47 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Generally, measurements and morphometrical ratios in our specimens were larger than those given by HARTWICH (1964), although these differences might be related to the fact that we only measured adult specimens, while Hartwich did not say if the measurements presented referred only to adult specimens. The distal end of the spicules (Fig.…”

Section: Contracaecum Rudolphiicontrasting

confidence: 69%

“…The author stated that Ascaris microcephala Rudolphi, 1809, later becoming Contracaecum microcephalum (Rudolphi, 1809) Baylis, 1920, was morphologically similar to some specimens which Rudolphi had identified as Ascaris spiculigera Rudolphi, 1809, and declared, based on page priority, A. spiculigera a junior synonym of C. microcephalum. Other specimens also studied by Rudolphi at that time were identified as A. spiculigera, although belonged to a new species (still unnamed) for which the new name Contracaecum rudolphii Hartwich, 1964, was proposed. FAGERHOLM (1988 discussed the pattern distribution of the caudal papillae, based on SEM, seen in several species of Contracaecum parasites of seals at different localities in high latitudes of the northern and southern hemispheres.…”

Section: Hartwich (1964) Revised Contracaecummentioning

confidence: 96%

“…Morphological parameters follow HARTWICH (1964). Different developmental stages were identified according to HARTWICH (1964) and HUIZINGA (1966). The fourth larval stage (L 4 ) and immature adults were identified according to TORRES et al (2000).…”

Section: Contrmentioning

confidence: 99%

“…Voucher specimens were deposited (in ethanol 70ºGL) in the CHIOC, Rio de Janeiro, Rio de Janeiro, Brazil. Hartwich, 1964 Figs 1-9…”

Section: Contrmentioning

confidence: 99%

See 3 more Smart Citations

Contracaecum rudolphii Hartwich (Nematoda, Anisakidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) in southern Brazil

2006

View full text Add to dashboard Cite

The present report is part of a larger study on the helminth fauna of Neotropical Cormorants, Phalacrocorax brasilianus (Gmelin, 1789) in Brazil, particularly, in the southernmost State of Rio Grande do Sul. The nematodes which were found loose in the proventriculus/ventriculus or in groups of adults of different ages and of L3 and L4 larval stages, forming eosinophylic granulomas had a prevalence of 100% in 47 Neotropical cormorants from Lago Guaíba, Municipality of Guaíba. The morphology of the labia/interlabia, the distribution pattern of the caudal papillae in males examined under scanning electron microscopy (SEM), and the tips of the spicules allowed determination of the species as Contracaecum rudolphii Hartwich, 1964 sensu lato (s. l.). This is the first record of C. rudolphii in southern Brazil.

show abstract

Section: Contracaecum Rudolphiicontrasting

confidence: 69%

Section: Hartwich (1964) Revised Contracaecummentioning

confidence: 96%

Section: Contrmentioning

confidence: 99%

“…Voucher specimens were deposited (in ethanol 70ºGL) in the CHIOC, Rio de Janeiro, Rio de Janeiro, Brazil. Hartwich, 1964 Figs 1-9…”

Section: Contrmentioning

confidence: 99%

See 2 more Smart Citations

Contracaecum rudolphii Hartwich (Nematoda, Anisakidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) in southern Brazil

2006

View full text Add to dashboard Cite

show abstract

“…Allozymes and partial sequence analysis of the mitochondrial cytochrome oxidase b (mtDNA cytb) have also demonstrated that the morphospecies C. ogmorhini Johnston & Mawson, 1941, which is sometimes also considered a synonym of C. osculatum (s.l.) (Johnston & Mawson, 1945;Hartwich, 1964) includes two sibling species (C. ogmorhini (s.s.) and C. margolisi) Timi et al, 2003). The existence of two species within C. ogmorhini (s.l.)…”

mentioning

confidence: 99%

Genetic relationships among species ofContracaecumRailliet & Henry, 1912 andPhocascarisHöst, 1932 (Nematoda: Anisakidae) from pinnipeds inferred from mitochondrialcox2sequences, and congruence with allozyme data

et al. 2008

View full text Add to dashboard Cite

Summary :The genetic relationships among 11 taxa, belonging to the genus Contracaecum (C. osculatum A, C. osculatum B, C. osculatum (s.s.), C. osculatum D, C. osculatum E, C. osculatum baicalensis, C. mirounga, C. radiatum, C. ogmorhini (s.s.), C. margolisi) and Phocascaris (Phocascaris cystophorae), parasites as adults of seals, were inferred from sequence analysis (519 bp) of the mitochondrial cytochrome c oxidase subunit II (mtDNA cox2) gene. Phylogenetic analyses obtained from Parsimony (MP) and Neighbour-Joining (NJ) K2P distance values generated similar topologies, each well supported at major nodes. All analyses delineated two main clades: the first encompassing the parasites of the phocid seals, i.e. the C. osculatum species complex, C. osculatum baicalensis, C. mirounga and C. radiatum, with the latter two species forming a separate subclade; the second including the parasites of otarids, i.e. C. ogmorhini (s.s.) and C. margolisi. An overall high congruence between mtDNA inferred tree topologies and those produced from nuclear data sets (20 allozyme loci) was observed. Comparison of the phylogenetic hypothesis here produced for Contracaecum spp. plus Phocascaris with those currently available for their definitive hosts (pinnipeds) suggests parallelism between hosts and parasite phylogenetic tree topologies.

show abstract

Two new species of Contracaecum Railliet & Henry, 1912 (Nematoda: Anisakidae), C. fagerholmi n. sp. and C. rudolphii F from the brown pelican Pelecanus occidentalis in the northern Gulf of Mexico

et al. 2011

View full text Add to dashboard Cite

DNA sequencing of the nuclear ribosomal DNA internal transcribed spacers (ITS) and mitochondrial rrnS and cox2 genes, and analysis of polymorphisms in restriction profiles in the ITS and rrnS, were used to characterise anisakid nematodes belonging to Contracaecum Railliet & Henry, 1912 infecting the brown pelican Pelecanus occidentalis (L.) in Galveston Bay, Texas and Sarasota Bay, Florida. Molecular data led to the detection of two new species: Contracaecum fagerholmi n. sp., which was also supported by clear morphological evidence, and Contracaecum rudolphii F, a new cryptic species within the Contracaecum rudolphii Hartwich, 1964 complex. Bayesian phylogenetic analysis demonstrated that C. fagerholmi and C. rudolphii F form two well-separated clusters, with C. fagerholmi being closely related to Contracaecum bioccai Mattiucci et al., 2008 and C. rudolphii F being included in the C. rudolphii complex. C. fagerholmi can be readily differentiated morphologically from all of its congeners, other than C. microcephalum (Rudolphii 1809) and the five currently recognised members of the C. rudolphii complex (C. rudolphii A, B, C, D and E). C. fagerholmi differs from C. microcephalum in the length of the spicules and the shape of the distal tip of the spicules, and from C. rudolphii (sensu lato) in the shape and size of the ventro-lateral and dorsal lips and by having interlabia which are not distally bifurcate. Further studies are needed to determine which morphological characteristics can be used to distinguish the cryptic species of the C. rudolphii complex in order to assign them with formal names. The recovery of a third species, C. bioccai, from the brown pelican confirms its occurrence in this host and extends its known geographical distribution.

show abstract

Revision Der Vogelparasitischen Nematoden Mitteleuropas. II. Die Gattung Contracaecum Railliet & Henry, 1912 (Ascaridoidea)

Cited by 19 publications

References 15 publications

Contracaecum rudolphii Hartwich (Nematoda, Anisakidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) in southern Brazil

Contracaecum rudolphii Hartwich (Nematoda, Anisakidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) in southern Brazil

Genetic relationships among species ofContracaecumRailliet & Henry, 1912 andPhocascarisHöst, 1932 (Nematoda: Anisakidae) from pinnipeds inferred from mitochondrialcox2sequences, and congruence with allozyme data

Two new species of Contracaecum Railliet & Henry, 1912 (Nematoda: Anisakidae), C. fagerholmi n. sp. and C. rudolphii F from the brown pelican Pelecanus occidentalis in the northern Gulf of Mexico

Contact Info

Product

Resources

About