Énumération des Cestodes du plancton et des Invertébrés marins 8<sup>e</sup> Contribution  avec un appendice sur le genre <i>Oncomegas</i> R.-Ph. Dollfus 1929

Robertollfus,

doi:10.1051/parasite/1974494381

Cited by 11 publications

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“…Encysted larval stages were recorded from 18 species of fishes. As noted earlier, Dollfus (1929) transferred the species, T. sitlcatus to Xybclhiia. The finding of encysted metacestodes in both cephalopods and teleost fishes shows that these are merely paratenic hosts that acquired the parasites by ingestion of previous hosts and that the worms become mature only in the intestine of selachian fishes.…”

Section: Euzetmentioning

confidence: 85%

Section: Horacementioning

confidence: 99%

“…In a series of papers, Dollfus (1923Dollfus ( , 1924Dollfus ( , 1929Dollfus ( , 1931Dollfus ( . 1964Dollfus ( , 1967Dollfus ( , 1974 listed the ccstodes of the plankton and the marine invertebrates. Xo complete life-cycle has been proved experimentally, but the pattern of development has been constructed from isolated observations on many species.…”

Section: Horacementioning

confidence: 99%

“…Discussing the group of plerocercoids known as Scole.v plewronectis, Wardle and McLeocl (1952, p. 231) predicated, "It is probable that these larvae represent a number of tetraphyllidean species." Euzet ( 1959, p. 228) SPECIES NUMBER v. N ybclimu hisnlcttta (Linton, 1889) Dollfus, 1929 e worms were embedded in the walls of the stomach and caecum of squids. ' -were tough, fibrous, and the metacestodes were released only when the cyst was dissected away.…”

Section: Euzetmentioning

confidence: 99%

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Studies on Tetraphyllidean and Tetrarhynchidean Metacestodes From Squids Taken on the New England Coast

Stunkard¹

1977

The Biological Bulletin

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and the Marine Biological Laboratory. Woods Hole. Massachusetts 02543 Early investigators, Yerrill, Raird, Leidy, and others, studied the marine fauna nf the Atlantic coast of Xorth America. They reported developmental stages of tapeworms in various invertebrates and in fishes. Morphological agreement of plerocercoids from the several host-species presaged taxonomic relationship but posed an enigma: the presence of similar larvae in such diverse host-species. No information on life-histories of marine cestodes was available, and determination of life-cycles under experimentally-controlled conditions was far in the future. Professor Verrill of Yale University had published his monograph on the vertebrate animals of Vineyard Sound and in 1881 directed Edwin Linton, a young graduate student, in the study of helminthic parasites of fishes. It was the first systematic investigation of helminthic parasites in America. The study was continued for the next forty years, chiefly in the laboratories of the U.

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Section: Euzetmentioning

confidence: 85%

Section: Horacementioning

confidence: 99%

Section: Horacementioning

confidence: 99%

Section: Euzetmentioning

confidence: 99%

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Studies on Tetraphyllidean and Tetrarhynchidean Metacestodes From Squids Taken on the New England Coast

Stunkard¹

1977

The Biological Bulletin

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“…Early records of larval cestode infections in zooplankton are reviewed in Dollfus (1923aDollfus ( ,c, 1931Dollfus ( , 1964Dollfus ( , 1974Dollfus ( , 1976. Indistinguishable larvae of tetraphyllideans, whether in fish or invertebrates, are generally referred to as Scolex polymorphus or Scolex pleuronectis.…”

Section: Cestodes Of Marine Fishmentioning

confidence: 99%

The role of zooplankton in the transmission of helminth parasites to fish

Marcogliese

1995

Rev Fish Biol Fisheries

179

139

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A revision of Oncomegas Dollfus, 1929 (Cestoda: Trypanorhyncha: Eutetrarhynchidae), the description of two new species and comments on its classification

1992

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Oncomegas Dollfus, 1929 is completely defined for the first time based upon a redescription of the typespecies, O. wageneri (Linton, 1890) from Dasyatis centroura (Mitchill), and the description of two new species, O. paulinae from Urolophus halleri Cooper and O. australiensis from Aetobatus narinari (Euphrasen). The three species of Oncomegas are differentiated from one another by scolex ratio, basal and metabasal armatures, testis number and arrangement, number of vaginal sphincters, form of gravid uterus, position of genital pores, and form of the osmoregulatory canals.Diagnostic characters of Oncomegas are: acraspedote scolex, two bothridia, asymmetrical tentacular basal swelling, basal armature with macrohook, typical heteroacanthous metabasal armature, prebulbar organs, elongate bulbs, retractor muscle origin at base of bulb, external seminal vesicle present, testes in two longitudinal rows or bands, seminal receptacle, lack of a postovarian testicular space, linear gravid uterus with lateral diverticula, and osmoregulatory ducts dorsal to cirrus-sac.The combination of heteroacanthous typical tentacle armature, two bothridia lacking ciliated pits, presence of prebulbar organs, retractor muscles originating at base of bulbs and posterior ovary warrant the placement of Oncomegas in the Eutetrarhynchidae. Oncomegas is most similar to Eutetrarhynchus Pintner, 1913 in arrangement of hooks of principal rows in opposing half-spirals which abut in 'V'-formations on both internal and external faces, presence of a basal armature and swelling, presence of an external seminal vesicle, testes confined to the intervascular medullary zone, posterior ovary and circumcortical vitelline field. Oncomegas differs from all eutetrarhynchid genera in the possession of a single macrohook in the basal armature and all except Eutetrarhynchus in the lack of a wide space between hook files 1 and (1') of the principal rows.

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Énumération des Cestodes du plancton et des Invertébrés marins 8^e Contribution avec un appendice sur le genre Oncomegas R.-Ph. Dollfus 1929

Cited by 11 publications

References 0 publications

Studies on Tetraphyllidean and Tetrarhynchidean Metacestodes From Squids Taken on the New England Coast

Studies on Tetraphyllidean and Tetrarhynchidean Metacestodes From Squids Taken on the New England Coast

The role of zooplankton in the transmission of helminth parasites to fish

A revision of Oncomegas Dollfus, 1929 (Cestoda: Trypanorhyncha: Eutetrarhynchidae), the description of two new species and comments on its classification

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Énumération des Cestodes du plancton et des Invertébrés marins 8e Contribution avec un appendice sur le genre Oncomegas R.-Ph. Dollfus 1929

Cited by 11 publications

References 0 publications

Studies on Tetraphyllidean and Tetrarhynchidean Metacestodes From Squids Taken on the New England Coast

Studies on Tetraphyllidean and Tetrarhynchidean Metacestodes From Squids Taken on the New England Coast

The role of zooplankton in the transmission of helminth parasites to fish

A revision of Oncomegas Dollfus, 1929 (Cestoda: Trypanorhyncha: Eutetrarhynchidae), the description of two new species and comments on its classification

Contact Info

Product

Resources

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Énumération des Cestodes du plancton et des Invertébrés marins 8^e Contribution avec un appendice sur le genre Oncomegas R.-Ph. Dollfus 1929