The Life Cycle of Parvatrema borinquenae gen. et sp. nov. (Trematoda: Digenea) and the Systematic Position of the Subfamily Gymnophallinae

Rm, Cable

doi:10.2307/3274284

Cited by 40 publications

(43 citation statements)

References 5 publications

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“…122 in Yamaguti, 1975 and in fellodistomids (trichofurcocercous cercaria, fig. 7, in Cable, 1953), a group close to strigeiform gymnophallids (Cable, 1953). Assuming a change from stenostomate to mesostomate, then it would appear to be taking place in parallel in at least three of Brooks' orders, and if so, rendering mesostomate (107) homoplastic, further reducing its taxonomic usefulness.…”

Section: Cercarialmentioning

confidence: 99%

“…(3) a general feature of most strigeiform groups; present in clinostomes (D6nges, 1974), schistosomatoids (Wall, 1941a,b, Capron et al, 1965, gymnophallids (Cable, 1953;Bartoli, 1983a,b), brachylaimids (Allison, 1943), diplostomes (Dubois, 1970, p. 260), and some strigeids (Odening & Bockhardt, 1971); but absent in most strigeids (Dubois, 1968, p. 14) and seemingly absent in bucephalids as they are not described by such careful workers as Komiya & Tajimi (1941); (4) and are not recorded from opisthorchiiforms (Lundahl, 1941;Hussey, 1941;Kuntz, 1952) or from hemiuroids (= hemiuriforms except bivesiculids). Hussey (1941) neither mentions nor figures in her comparative plate VII lateral flames in the cercaria of the hemiurid Halipegus occidualis Stafford, 1905, and neither mentions nor figures them in the cercaria of the azygiid Proterometra macrostoma (Faust, 1918); Odening (1976) neither mentions nor figures them in Azygia lucii (MOiler, 1776).…”

Section: Cercarialmentioning

confidence: 99%

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On the position of the digenean family Heronimidae: an inquiry into a cladistic classification of the Digenea

Pearson

1992

Syst Parasitol

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Brooks, O'Grady & Glen (1985b) placed the seemingly aberrant and highly derived family Heronimidae at the base of their cladogram of the Digenea. In the absence of arguments for the composition and polarity of the putative homologous series on which their cladogram is based, it was found necessary to consider in detail almost all of their character series. In the course of my analysis I (1) argue that the oral sucker is singular to the Digenea, and that the oral sucker is not synapomorphic nor the ventral sucker symplesiomorphic for the Digenea, but that early digeneans lacked both suckers, (2) reiterate that the amphistomate condition is secondary and has arisen more than once, and that the embryology of the excretory system proves it to be secondary in all cases, (3) offer support for Cable's view that the cercarial stylet is not of single origin, and (4) restate the argument that paramphistomes, microscaphidiids, and gyliauchenids have not an oral sucker but a pharynx. Brooks, Bandoni, Macdonald & O'Grady (1989) stated that the bifurcate gut is unambiguously a synapomorph of the Digenea, on the basis of their cladistic demonstration that Rugogaster with a bifurcate gut is a sister group to the rest of the Aspidobothria, which in turn is a sister group to the Digenea. Testing this in a new cladogram of the Aspidobothria constructed from Brooks et al. 's (1989) 15 characters (corrected, especially those of the ventral sucker, for which a new phylogeny is advanced), supplemented by an additional 23 characters, reveals Rugogaster as the derived form it appeared to be and aspidogastrids, with a single caecum, as sister group to the rest of the Aspidobothria.A new analysis of the characters produced an increase in homoplasy from 18% to 37%, showed 97 out of 212 characters invalid as used, these two resulting in a decrease in resolution from 82% to 32%, and resulted in changes in polarity in 20 of the 65 putative homologous series listed by Brooks et al. (1985b).The Heronimidae cannot be at the base of their cladogram as it has not three but 13 apomorphs, which is more than have the next three groups, the paramphistomiforms, echinostomatiforms and haploporiforms.Comparison of the Heronimidae with the Bivesiculidae in the light of 48 defensible plesiomorphs shows that the Bivesiculidae, which have 39 of the 48 characters, are more plesiomorphic than the Heronimidae, which have only 23.In conclusion, what remains of the data-base is insufficient to support their cladogram and classification. Better data from the flukes themselves are necessary for a sound cladistic analysis. 82 J.C. Pearson

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Section: Cercarialmentioning

confidence: 99%

Section: Cercarialmentioning

confidence: 99%

On the position of the digenean family Heronimidae: an inquiry into a cladistic classification of the Digenea

Pearson

1992

Syst Parasitol

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“…), subfamily Fellodistomatinae, and Martin's cercaria can almost certainly be referred to the same subfamily. Proctoeces belongs to the subfamily Haplocladinae, and Cable (1953) suggests that the cercariae of this subfamily may be furcocercous or trichofurcocercous. We have found furcocercous cercariae developing in sporocysts in Scrobicularia plana at Chalkwell, but the fact that they occurred also in S. plana from the Gwendraeth and Tavy rivers where Proctoeces subtenuis was absent suggested that they were not related to this trematode.…”

Section: Discussionmentioning

confidence: 99%

An Adult Digenetic Trematode From an Invertebrate Host:Proctoeces Subtenuis (Linton) From the Lamellibranch Scrobicularia Plana(Da Costa)

Freeman

Llewellyn

1958

J. Mar. Biol. Ass.

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Adult digenetic trematodes are typically parasites of vertebrates. Sexually mature trematodes occurring in invertebrate hosts are usually regarded as precocious last-larval stages, to which the term 'progenetic' is applied. These progenetic forms are often encysted, and can usually only contribute to the further life history of the species, and, in many cases, can only attain the definitive form of the adult trematode, after transference to a vertebrate host.Specimens of the mud-burrowing lamellibranch Scrobicularia plana, collected from the region of the Thames estuary, were found to be infected with unencysted, sexually mature trematodes. These parasites occurred in the kidneys of the molluscs, and, as will be discussed later, there seems no reason to regard them as other than adult digenetic trematodes. They were identified as specimens of Proctoeces subtenuis (Linton, 1907) Hanson, 1950. This species has been recorded, hitherto, only as a parasite of the hind-gut of marine fishes belonging to the families Labridae and Sparidae, from the Red Sea, New Zealand, and the eastern seaboard of America.In this paper an account is given of the occurrence, distribution, environment, morphology, and taxonomy of Proctoeces subtenuis from Scrobicularia plana, and the possible life history of this trematode in the Thames estuary is discussed with reference to the phenomenon of progenesis. OCCURRENCE AND prSTRIBUTIONSpecimens of Proctoeces subtenuis in the kidney of Scrobicularia plana were first observed in 1954 in animals collected from the mud flats at Chalkwell in Essex. During the subsequent three years nearly a thousand specimens of S. plana from this location were examined. Every single specimen was

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“…En dehors de la métacercaire de P. timondavidi, on connaît six de ces formes se rapportant au genre Parvatrema : P. borinquenae Cable 1953 A l'exception de P. donacis, l'espèce provençale se distingue facilement des autres par sa grande taille, les rapports ventousaires différents, l'absence d'oesophage, la grande taille des caecums et sa vessie qui, pourvue de diverticules, atteint la ventouse orale. Cependant sa ressemblance avec P. donacis est assez frappante.…”

Section: Discussionunclassified

Données nouvelles sur la morphologie et la biologie de Parvatrema timondavidi Bartoli 1963 (Trematoda : Digenea).

Bartoli¹

1965

Ann. Parasitol. Hum. Comp.

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The Life Cycle of Parvatrema borinquenae gen. et sp. nov. (Trematoda: Digenea) and the Systematic Position of the Subfamily Gymnophallinae

Cited by 40 publications

References 5 publications

On the position of the digenean family Heronimidae: an inquiry into a cladistic classification of the Digenea

On the position of the digenean family Heronimidae: an inquiry into a cladistic classification of the Digenea

An Adult Digenetic Trematode From an Invertebrate Host:Proctoeces Subtenuis (Linton) From the Lamellibranch Scrobicularia Plana(Da Costa)

Données nouvelles sur la morphologie et la biologie de Parvatrema timondavidi Bartoli 1963 (Trematoda : Digenea).

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