Eine neue Art der TrematodengattungG Diplozoon v. Nordmann

Reichenbach-Klinke, H.

doi:10.1007/bf00261882

Cited by 4 publications

(3 citation statements)

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“…The asymmetrical disposition of the clamps in the genus Diplozoon has been utilized in the diagnoses of certain species. The arrangement of the clamps in a linear series of eight on each haptor of D. barbi is used by Reichenbach-Klinke (1951, 1954 as a specific character. Similarly, Sterba (1957) believes the staggered arrangement of the two rows of clamps on the haptor is characteristic of D. tetragonopterini.…”

Section: Discussionmentioning

confidence: 99%

“…The attachment of several solitary parasites has been described (Llewellyn, 1956a(Llewellyn, , 1957a(Llewellyn, , 1958, but no analysis has been attempted previously of the attachment to the host of a fused pah* of parasites. Moreover, the asymmetrical disposition of the posterior adhesive organs has been used as a specific character in two species of Diplozoon, namely in D. barbi by Reichenbach-Klinke (1951, 1954 and in D. tetragonopterini by Sterba (1957) and since in Discocotyle sagittata the asymmetrical nature of the haptor has een shown to be facultative and so of very limited taxonomic value (Llewellyn & Owen, 1960), the attachment of Diplozoon paradoxum to the gills of Rutilus rutilus L., the roach, has been studied.…”

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confidence: 99%

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The attachment of the monogenean Diplozoon paradoxum to the gills of Rutilus rutilus L. I. Micro-habitat and adhesive attitude

Owen

1963

Parasitology

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Both individuals of a pair of Diplozoon paradoxum Nord., 1832, when parasitizing the gills of Rutilus rutilus, are normally attached to the same hemibranch but never to the same surface of one primary lamella. A preference is shown for attachment to certain gills and also to particular locations on the gills.Diplozoon paradoxum displays asymmetry of its haptor when attached to the gills of the roach but the haptor assumes bilateral symmetry when unattached. As in Discocotyle, this impermanent asymmetry is facultative to the left or right, dependent upon the incidence of the gill-ventilating current, so that the body of a worm will present the least amount of resistance to the water as it passes across the gills. It is probable that impermanent, facultative asymmetry occurs in other species of the genus Diplozoon, and the usefulness of the asymmetrical nature of the haptor as a taxonomic criterion is therefore extremely limited.It is a pleasure to record my thanks to Dr F. G. Rees, University College of Wales, Aberystwyth, for her encouragement and guidance and to Dr J. Llewellyn, University of Birmingham, for his valuable help and critical reading of the manuscript. I am indebted to Mr D. Haigh for supplying me with fishes. This work was done while receiving a grant from the Department of Scientific and Industrial Research.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

The attachment of the monogenean Diplozoon paradoxum to the gills of Rutilus rutilus L. I. Micro-habitat and adhesive attitude

Owen

1963

Parasitology

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“…However, the descriptions of most diplozoid taxa display varying complexities of clamp sclerite detail, with some presenting simpler structures, as per Goto [29] (e.g. [30,31]), while others produced more detailed illustrations (e.g. Gläser [32]).…”

Section: Discussionmentioning

confidence: 99%

Using scanning electron microscopy (SEM) to study morphology and morphometry of the isolated haptoral sclerites of three distinct diplozoid species

2019

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Diplozoidae infects the gills of cyprinid fishes in Africa, Europe, and Asia. Traditionally the hardened internal structures, crucial for identification of diplozoid species, are studied using light microscopy. Recently, the sclerotised haptoral structures of an African diplozoid, Paradiplozoon vaalense , were successfully isolated and visualised using scanning electron microscopy (SEM). In this paper, the haptoral sclerites of three diplozoid species are compared using SEM for the first time. Paradiplozoon ichthyoxanthon and Paradiplozoon vaalense occur on Labeobarbus and Labeo species, respectively, in the Vaal River system, South Africa, while Diplozoon paradoxum is widely-distributed in Europe and Asia, infecting several host species. Diplozoon paradoxum is a well-studied species, as well as being the type species of the family and ideal for inclusion in an exploratory study for comparative purposes. SEM study of D . paradoxum and P . ichthyoxanthon provided valuable information regarding surface morphology of the attachment structures hitherto not observed. Elaborate morphometric study of the haptoral hooks were incorporated, adding 12 point-to-point measurements to current morphometric characteristics. The results were analysed statistically, and significant differences support absolute separation (100.00%) of the three species following discriminant analysis. These point-to-point measurements could also be used for light microscopical study in the future and aid species delimitation within the Diplozoidae.

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Weitere Mitteilung �ber den Kiemenparasiten

Reichenbach-Klinke¹

1954

Z. F. Parasitenkunde

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Eine neue Art der TrematodengattungG Diplozoon v. Nordmann

Cited by 4 publications

References 1 publication

The attachment of the monogenean Diplozoon paradoxum to the gills of Rutilus rutilus L. I. Micro-habitat and adhesive attitude

The attachment of the monogenean Diplozoon paradoxum to the gills of Rutilus rutilus L. I. Micro-habitat and adhesive attitude

Using scanning electron microscopy (SEM) to study morphology and morphometry of the isolated haptoral sclerites of three distinct diplozoid species

Weitere Mitteilung �ber den Kiemenparasiten

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