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An ultrastructural study of the haptor of the microbothriid monogenean Leptocotyle minor from the skin of the dogfish Scyliorhinus canicula [Scyliorhinidae]

100%

Kearn G. C., Evans-Gowing R., Rees J.

Acta Parasitologica

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2001

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tom 46

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nr 4

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Pseudoleptobothrium aptychotremae Young, 1967 [Monogenea, Microbothriidae] redescribed from a new host, Trygonorrhina fasciata [Rhinobatidae] in South Australia with a description of the larva and post-larval development

100%

Glennon V., Chisholm L. A., Whittington I. D.

Acta Parasitologica

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2006

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tom 51

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nr 1

The adult of Pseudoleptobothrium aptychotremae Young, 1967 (Monogenea, Microbothriidae) is redescribed from the dermal denticles of the southern fiddler ray, Trygonorrhina fasciata (Rhinobatidae) collected off Adelaide, South Australia. This is a new host and locality record. The anatomy of the larva is described from observations of live larvae and the presence of six needle-like spicules in the larval haptor is confirmed. The development of P. aptychotremae is also described.

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Amendment of Pseudoleptobothrium Young, 1967 (Monogenea, Microbothriidae) with the description of Pseudoleptobothrium christisoni sp. nov. from the dermal denticles of Rhinobatos annulatus (Rhinobatidae) off the Southern tip of Africa

80%

Voughan D. B., Chisholm L. A.

Acta Parasitologica

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2011

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tom 56

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nr 3

Pseudoleptobothrium christisoni sp. nov. is described from the dermal denticles of the dorsal skin surface of a single female Rhinobatos annulatus collected off Cape Agulhas, South Africa and destined for public exhibition at the Two Oceans Aquarium in Cape Town. This new species differs from the only other species in the genus, P. aptychotremae Young, 1967, primarily by the morphology of the male copulatory tract. The distal portion of the male copulatory tract is wide and bears muscular papillae internally and externally. In addition, the area of ventral tegument near the vaginal pore has several parallel ridges which appear to serve as the initial attachment site for a bipartite spermatophore. The formation of the spermatophore in P. christisoni is discussed. The generic diagnosis of Pseudoleptobothrium is revised to accommodate P. christisoni and a partial redescription of P. aptychotremae is provided to include characters originally not described or described incorrectly.

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A new genus and new species of microbothriid monogenean [Platyhelminthes] with a functionally enigmatic reproductive system, parasitic on the skin and mouth lining of the largetooth sawfish, Pristis microdon, in Australia

61%

Kearn G. C., Whittington I. D., Evans-Gowing R.

Acta Parasitologica

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2010

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tom 55

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nr 2

115-122

Dermopristis paradoxus gen. et sp. nov., a microbothriid monogenean parasite from the skin and mouth lining of the largetooth sawfish, Pristis microdon (Elasmobranchii, Pristidae) in Australia, is described. The parasite has 2 juxtaposed testes and differs from other microbothriids in possessing a unique and unusual terminal male reproductive tract comprising a proximal and a distal tube, the latter with a conspicuous opening on the ventral surface and lacking a recognisable male copulatory organ. The smalltooth sawfish, P. pectinata, also has a skin-parasitic microbothriid, Dermophthirioides pristidis Cheung et Nigrelli, 1983, but this parasite species has a prominent copulatory papilla. Dermopristis paradoxus also has parallel ridges with broad tops running in a roughly transverse direction across the ventral surface of the body. The ventral ridges are prominent from the level of the pharynx to the posterior region of the body. The function of the ridges is unknown. Reproductive biology, attachment and feeding in D. paradoxus are discussed. In the absence of unmounted parasite specimens for sectioning, a mounted specimen of D. paradoxus was released from the slide and successfully processed to provide serial, stained, resin sections. This useful technique is recommended to provide anatomical information in situations where only specimens on slides are available for study.

Ograniczanie wyników

4 Acta Parasitologica

2 Chisholm L. A.

2 Evans-Gowing R.

2 Kearn G. C.

2 Whittington I. D.

1 Glennon V.

1 Rees J.

1 Voughan D. B.

1 2011

1 2010

1 2006

1 2001

An ultrastructural study of the haptor of the microbothriid monogenean Leptocotyle minor from the skin of the dogfish Scyliorhinus canicula [Scyliorhinidae]

Pseudoleptobothrium aptychotremae Young, 1967 [Monogenea, Microbothriidae] redescribed from a new host, Trygonorrhina fasciata [Rhinobatidae] in South Australia with a description of the larva and post-larval development

Amendment of Pseudoleptobothrium Young, 1967 (Monogenea, Microbothriidae) with the description of Pseudoleptobothrium christisoni sp. nov. from the dermal denticles of Rhinobatos annulatus (Rhinobatidae) off the Southern tip of Africa

A new genus and new species of microbothriid monogenean [Platyhelminthes] with a functionally enigmatic reproductive system, parasitic on the skin and mouth lining of the largetooth sawfish, Pristis microdon, in Australia