Family Allocreadiidae Looss, 1902.

Caira, Janine N.; Bogéa, Tami

doi:10.1079/9780851995878.0417

Cited by 34 publications

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“…The tree topology resulting from our analysis may lack some unknown or overlooked plagiorchioid taxon or taxa more closely related to Polylekithum than Encyclometridae. Polylekithum is most similar morphologically to Caudouterina Martin, 1966, andLeurosoma Ozaki, 1932, genera also provisionally treated in Allocreadiidae (see Martin 1966, Yamaguti 1971, Caira and Bogéa 2005. Likely, these three genera share some familial affinity in the Xiphidiata based on morphological comparison.…”

Section: Classification Of Polylekithummentioning

confidence: 87%

“…Regardless, for the time being we consider the two named species to represent one species, A. patagonicum, making P. percai a junior synonym. Since the species does not conform to the generic diagnosis of Allocreadium (see Caira and Bogéa 2005), we consider the species incertae sedis. Flores et al (2004) described a similar species, A. pichi from the freshwater smelt Galaxias maculatus (Jenyens, 1842) (Osmeriformes), from lake Moreno in Argentina.…”

Section: Biogeographymentioning

confidence: 99%

“…Yamaguti (1958) considered Polylekithum to be a junior synonym of Lepidauchen Nicoll, 1913 in Allocreadiidae, but Yamaguti (1971) considered Polylekithum a distinct genus in Allocreadiidae. Polylekithum continued to be treated as an allocreadiid in all of the most recent works classifying the genus (e.g., Gibson 1996, Hoffman 1999, Caira and Bogéa 2005, Platta and Choudhury 2006. Conflict regarding the placement of Polylekithum in Allocreadiidae lies in studies of larval forms mistakenly attributed to P. ictaluri.…”

Section: Introductionmentioning

confidence: 99%

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A review of Polylekithum Arnold, 1934 and its familial affinities using morphological and molecular data, with description of Polylekithum catahoulensis sp. nov.

Curran

Tkach²,

Overstreet

2006

Acta Parasitologica

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The type material of Polylekithum ictaluri, P. halli, and Maculifer chandleri was examined from the United States National Parasite Museum, and we determined that the material was conspecific, making P. halli and M. chandleri junior subjective synonyms of P. ictaluri. Polylekithum catahoulensis sp. nov. was described from material collected from catfishes at the Catahoula Wildlife Refuge, LaSalle Parish, Louisiana, USA, and compared with P. ictaluri collected from catfishes in Reelfoot Lake, Obion County, Tennessee, USA, and the Pearl River, Hancock County, Mississippi, USA. Polylekithum catahoulensis had smaller eggs (77-88 µm long by 51-63 µm wide vs. 94-108 µm by 52-76 µm) and a longer forebody (35-41% of overall body length vs. 29-34%). Comparison of more than 2,400 bp long fragments of nuclear ribosomal DNA (complete ITS and partial 28S regions) strongly supported the status of P. catahoulensis as a new species. Molecular phylogenetic analysis of 28S rDNA gene sequences from Polylekithum as well as representative species from Allocreadiidae, Atractotrematidae, Brachycoeliidae, Callodistomidae, Dicrocoeliidae, Encyclometridae, Gorgoderidae, Haploporidae, Opecoelidae, Plagiorchiidae, and Telorchiidae rooted by Monorchiidae and Lissorchiidae demonstrated that of the families tested, Polylekithum was most closely related to Encyclometridae as a gorgoderoid and not to Allocreadiidae as previously reported. Morphological features of three South American allocreadiids, Allocreadium patagonicum, P. percai, and A. pichi were inconsistent with generic diagnoses of Allocreadium and Polylekithum, so we suggested they belonged in a single unnamed genus similar to Creptotrema. Polylekithum catlai from India was assessed from the description and failed to conform to the generic diagnosis of Polylekithum. Morphology of Caudouterina suggested a close relationship with Polylekithum and not Allocreadiidae.

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Section: Classification Of Polylekithummentioning

confidence: 87%

Section: Biogeographymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A review of Polylekithum Arnold, 1934 and its familial affinities using morphological and molecular data, with description of Polylekithum catahoulensis sp. nov.

Curran

Tkach²,

Overstreet

2006

Acta Parasitologica

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“…Known allocreadiid cercariae are of the ophthalmoxiphidiocercaria type (with distinct eye-spots and stylet) and overwhelmingly use sphaeriid bivalves as the first intermediate hosts (e.g., Wiśniewski 1958;Cannon 1971;Caira 1989). Much disagreement regarding taxonomy, systematics, and phylogeny of allocreadiids exists (see Caira 1989;Caira and Bogea 2005;Cribb 2005). Overall, body plasticity makes the identification of systematically useful morphological traits of allocreadiids, as well as of many other digeneans, a difficult task and leads to the search for new characteristics.…”

Section: Introductionmentioning

confidence: 99%

Comparative karyological analysis of three members of Allocreadiidae (Digenea): taxonomic and phylogenetic implications

Petkevičiūtė

Stanevičiūtė

2008

Parasitol Res

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Chromosome number and morphology were studied in three allocreadiid species from mitotic metaphases of intramolluscan stages using karyometric analysis. Bunodera luciopercae has a diploid number 2n=14, with two large pairs of metacentrics, one pair of submeta-subtelocentrics, and four pairs of acrocentrics. Karyotype of Allocreadium isoporum, 2n=14, with two large pairs of metacentrics and five pairs of acrocentrics was recognized to be closely related to that of B. lucioperca. The most conspicuous interspecific difference occurs in the centromere position of the chromosomes of the pair 3. The possible reasons of the discrepancies between data reported therein and the karyological information previously published on these two species are discussed. Crepidostomum sp. has 2n=12, with one pair of large metacentrics and five pairs of acrocentrics and is more distantly related karyologically to the other two members of the family. Evolutionary considerations based on comparison of the chromosomes of Allocreadiidae and other studied families of the suborder Xiphidiata suggest that allocreadiids are karyotypically distinct. The placement of Allocreadiidae and Opecoelidae in the superfamily Allocreadioidea is questioned.

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“…singhia Pershad, 1965, both from the same host species (M. aculeatus) in India. At present, Rhynchocreadium Srivastava, 1962 is considered a junior synonym of the genus Allocreadium Looss, 1900 (family Allocreadiidae; see Caira and Bogéa 2005).…”

Section: Discussionmentioning

confidence: 99%

Stegodexamene anguillae (Digenea: Lepocreadiidae), an intestinal parasite of eels (Anguilla spp.) in New Caledonia

Moravec

Justine²

2006

Parasitol Res

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Adult trematodes of the genus Stegodexamene Macfarlane, 1951 were recorded from the intestines of two species of freshwater eels, the Pacific short-finned eel Anguilla obscura Günther and the speckled longfin eel Anguilla reinhardtii Steindachner from the Pouembout and La Foa Rivers, New Caledonia, South Pacific. They were identified as Stegodexamene anguillae Macfarlane, 1951, a species previously reported only from eels in New Zealand. The morphology of adult S. anguillae seems to be practically identical with that of the later described Stegodexamene callista Watson 1984 from eels in Australia. The finding of S. anguillae in A. obscura and A. reinhardtii in New Caledonia represents new geographical and host records. In addition to this trematode, two larval specimens of a cestode of the order Proteocephalidea were found in the intestine of one A. obscura from the Pouembout River. No monogenean was found in eels of New Caledonia.

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Family Allocreadiidae Looss, 1902.

Cited by 34 publications

References 0 publications

A review of Polylekithum Arnold, 1934 and its familial affinities using morphological and molecular data, with description of Polylekithum catahoulensis sp. nov.

A review of Polylekithum Arnold, 1934 and its familial affinities using morphological and molecular data, with description of Polylekithum catahoulensis sp. nov.

Comparative karyological analysis of three members of Allocreadiidae (Digenea): taxonomic and phylogenetic implications

Stegodexamene anguillae (Digenea: Lepocreadiidae), an intestinal parasite of eels (Anguilla spp.) in New Caledonia

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