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1

Phylogenetic studies explain the discrepant host distribution of Allopodocotyle heronensis sp. nov. (Digenea, Opecoelidae) in Great Barrier Reef serranids

100%

Downie A. J. , Cribb T. H.

Acta Parasitologica

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2011

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tom 56

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nr 3

EN

We report a new species of Allopodocotyle Pritchard, 1966 from the intestine of two species of Serranidae, Cromileptes altivelis and Epinephelus fuscoguttatus, from the southern Great Barrier Reef. Despite the examination of eight other species of Epinephelus from the same region this species appears anomalous in its distribution in one species of Epinephelus and the single species of Cromileptes. Molecular phylogenetic studies of the Epinephelinae suggest, however, that these two species are closely related so that the host specificity demonstrated by this species is actually stenoxenic (phylogenetically related hosts) rather than euryxenic.

2

Two new cryptogonimid genera [Digenea, Cryptogonimidae] from Lutjanus bohar [Perciformes, Lutjanidae]: analyses of ribosomal DNA reveals wide geographic distribution and presence of cryptic species

100%

Miller T. L. , Cribb T. H.

Acta Parasitologica

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2007

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tom 52

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nr 2

EN

We describe three new species of Cryptogonimidae belonging to two new genera, Caulanus gen. nov. and Latuterus gen. nov., from the large piscivorous reef fish Lutjanus bohar Forsskål, 1775, recovered from Heron and Lizard Islands off the Great Barrier Reef and Rasdhoo Atoll, Maldives. To support our morphologically based taxonomic approach, three nuclear ribosomal DNA regions (28S, ITS1 and ITS2) were sequenced and analysed to explore the geographic distribution and integrity of the putative species recovered from these widespread localities. Sequencing of the rDNA regions included multiple replicates and revealed three distinct genotypes. Two of the observed genotypes were associated with phenotypically similar specimens of Latuterus, but were each restricted to a single locality, Lizard Island, GBR or Rasdhoo Atoll, Maldives. A posteriori analysis of the associated morphotypes revealed distinct morphological differences and these consistent differences, in combination with the consistent genetic differences led to the recognition of two distinct species in the system. Caulanus is distinguished by having oral spines, caeca which open via ani at the posterior end of the body, tandem testes and uterus that extends from the posterior end of the body to the pharynx. Latuterus is distinguished by lacking oral spines, having multiple/follicular testes, a uterus that is extensive in both fore-and hindbody and vitelline follicles which are confined to the region from the pharynx to oral sucker. Caulanus thomasi sp. nov. had identical sequences for all of the rDNA regions examined from specimens recovered from all three localities, indicating that this species has a wide Indo-Pacific distribution. The species reported here are evidently restricted to Lutjanus bohar because they were never found in large numbers of other lutjanid species sampled at the same localities.

3

Eight new species of Siphoderina Manter, 1934 [Digenea, Cryptogonimidae] infecting Lutjanidae and Haemulidae [Perciformes] of Australia

100%

Miller T. L. , Cribb T. H.

Acta Parasitologica

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2008

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tom 53

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nr 4

EN

We report nine species, eight of which are new, of cryptogonimids belonging to Siphoderina Manter, 1934 from the intestine and pyloric caeca of five species of Lutjanidae (Lutjanus adetii, L. argentimaculatus, L. carponotatus, L. fulviflamma and L. russelli) and one species of Haemulidae (Plectorhinchus gibbosus) recovered from Heron and Lizard Islands off the Great Barrier Reef, Moreton Bay and Ningaloo Reef in Western Australia. We also report the metacercariae of two species from an atherinid fish, Atherinomorus capricornensis, from near Heron Island. Morphological analysis of the species reported here was augmented by DNA sequence analyses utilizing data from the internal transcribed spacers (ITS) 1 and 2, large subunit (LSU) and 5.8S nuclear ribosomal DNA to explore the integrity of the species and their biogeographic distributions. The analysis found strong support for the integrity of Siphoderina and found that it is the sister-taxon to Beluesca Miller et Cribb, 2007. Sequencing included multiple replicates and no intraspecific variation was observed between any of the taxa over the rDNA regions examined. Sequence data from the ITS and LSU regions were analysed with that of species of Beluesca, Caulanus Miller et Cribb, 2007, Chelediadema Miller et Cribb, 2007, Latuterus Miller et Cribb, 2007, Neometadena Hafeezullah et Siddiqi, 1970 and Retrovarium Miller et Cribb, 2007 which all also infect lutjanids or haemulids. Some closely related species of Siphoderina infect only distantly related fishes among the haemulids and lutjanids whereas others form clusters in association with clusters of closely related lutjanids. This pattern suggests a history of some co-evolutionary divergence together with significant host switching. Pseudallacanthochasmus Velasquez, 1961 is considered a synonym of Siphoderina and the new combinations S. grandispinus (Velasquez, 1961) n. comb. and S. magnivesiculum (Gaevskaya et Aljoshkina, 1985) n. comb. are proposed. As a result of the new species described here and these new combinations, Siphoderina now contains 43 species, making it by far the largest genus of the Cryptogonimidae.

4

Lepocreadiinae lepocreadiids [Digenea] from tetraodontiform fishes in the waters off Tasmania, Queensland and Moorea, French Polynesia

100%

Bray R. A. , Cribb T. H.

Acta Parasitologica

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2002

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tom 47

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nr 1

EN

Two new species of Pseudocreadium are described from off northern Tasmania, P. maturini sp. nov. from Meuschenia freycineti and P. aubreyi sp. nov. from Acanthaluteres vittiger. They differ from the only other recognised species in the genus by the number of ovarian lobes and by size, and they differ from each other by size, shape, caecal length, forebody length, pre-oral lobe size, uterine position, excretory vesicle length and oral sucker shape. Lobatocreadium exiguum is redescribed from Sufflamen bursa, off Moorea, French Polynesia and Abalistes stellatus, Swain Reefs, Great Barrier Reef, Queensland. Records and measurements are given for Hypocreadium cavum from Sufflamen fraenatus and Lepotrema clavatum from Melichthys vidua, both off Heron Island, Great Barrier Reef, Queensland.

5

Venusicola inusitatus gen.n., sp.n. [Digenea, Acanthocolpidae] from the Venus tuskfish Choerodon venustus [De Vis] from the southern Great Barrier Reef

100%

Bray R. A. , Cribb T. H.

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tom 45

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nr 4

EN

The new acanthocolpid genus Venusicola is erected for V. inusitatus sp. n. from the marine tuskfísh Choerodon venustus from Heron Island on the southern Great Barrier Reef. This genus is unique in the family in having a greatly elongated ventral sucker with lateral apertural lips and a pavement of blunt spines lining the aperture.

6

Species of Lecithocladium Luhe, 1901 [Digenea, Hemiuridae] from Australian marine fishes, with a description of a new species from various hosts off Eastern Australia

100%

Bray R. A. , Cribb T. H.

Acta Parasitologica

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2004

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tom 49

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nr 1

EN

Lecithocladium moretonense sp. nov. is described from Monodactylus argenteus (type-host), Abudefduf sordidus, A. whitleyi, Herklotsichthys castelnaui, Lutjanus russelli, Platycephalus indicas, Rhabdosargus sarba, Siganus nebulosus and Scorpis lineolata from Moreton Bay, southern Queensland, and Acanthopagrus australis from off northern New South Wales. It differs from most Lecithocladium species in having a subglobular oral sucker and pharynx. Other distinguishing features are the thin-walled recurved seminal vesicle and the pars prostatica coiling over the seminal vesicle to the level of the anterior testis. Lecithocladium megalaspis Yamaguti, 1953 from Alepes apercna, Moreton Bay and L. angustiovum Yamaguti, 1953 from Scomber australasicus, Fremantle, Western Australia, are also reported, illustrated and measured.

7

Further observations on the Enenteridae Yamaguti, 1958 [Digenea, Lepocreadioidea] of the Indo-West Pacific Region, including a new species from Western Australia

100%

Bray R. A. , Cribb T. H.

Acta Parasitologica

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2002

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tom 47

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nr 3

EN

Measurements are given for all and full descriptions and illustrations for some of the following enenterid species: Enenterum aureum Linton, 1910 in Kyphosus bigibbus and K. sydneyanus? from Ningaloo Coral Reef, Western Australia, K. vaigiensis from off Heron Island, Queensland and K. vaigiensis from off Moorea, French Polynesia; E. mannarense Hafeezullah, 1980 in K. bigibbus and K. sydneyanus? from Ningaloo Coral Reef; E. elongatum Yamaguti, 1970 in K. vaigiensis from Heron Island, Queensland and K. bigibbus and K. sydneyanus? from Ningaloo Coral Reef; Koseiria alanwilliamsi sp. nov. in Kyphosus cornelii from off Kalbarri, Western Australia; Koseiria xishaense Gu et Shen, 1983 in K. vaigiensis from off Heron Island and K. bigibbus from off Palau, Micronesia; Proenenterum isocotylum Manter, 1954 in Aplodactylus arctidens from off Stanley, Tasmania; P. ericotylum Manter, 1954 in A. arctidens from off Stanley; Cadenatella isuzumi Machida, 1993 from Kyphosus bigibbus and K. sydneyanus? from Ningaloo Coral Reef; Cadenatella pacifica (Yamaguti, 1970) from Kyphosus bigibbus from Ningaloo Coral Reef. Two recent cladistic studies of the Enenteridae are discussed and a further analysis has shown that Enenterum and Cadenatella are monophyletic, whilst Koseiria appears polyphyletic. The zoogeography and host-specificity of Kyphosus-inhabiting enenterids is discussed.

8

Resolution of the discrepant host-specificity of Pseudorhabdosynochus species [Monogenea, Diplectanidae] from serranid fishes in the tropical Indo-Pacific

80%

Justine J. L. , Dupoux C. , Cribb T. H.

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tom 54

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nr 2

119-130

EN

New material from Epinephelus quoyanus collected from Heron Island, Australia and material collected by Young in the same locality, allegedly from E. merra, and deposited in the Queensland Museum, contained the same three species of diplectanid monogeneans: Pseudorhabdosynochus cupatus (Young, 1969), P. vagampullum (Young, 1969), and P. justinei Zeng et Yang, 2007 (new record for Australia). In contrast, E. merra in New Caledonia harbours only P. melanesiensis (Laird, 1958). It is concluded that the type-host of P. cupatus and P. vagampullum is not E. merra, as indicated in Young (1969), but E. quoyanus, and that P. cupatus sensu Young comprises two species, P. cupatus from E. quoyanus and P. youngi sp. nov. from E. fasciatus. P. youngi sp. nov. is described from E. fasciatus from New Caledonia (type-locality), Heron Island, and French Polynesia, and distinguished from P. cupatus on the basis of the male quadriloculate organ, sclerotised vagina and lamellosquamodiscs. Thus, P. cupatus, P. melanesiensis and P. youngi each have a single host, respectively E. quoyanus, E. merra, and E. fasciatus. Results for E. fasciatus and E. merra in New Caledonia, Wallis and French Polynesia suggest impoverishment of the monogenean fauna in a West-East gradient in the Pacific.

9

Peracreadium akenovae sp. nov. (Trematoda: Opecoelidae) parasitising the highfin moray eel Gymnothorax pseudothyrsoideus (Anguilliformes: Muraenidae) from Moreton Bay, Australia

80%

Cribb T. H. , Bray R. A. , Cutmore S. C.

Acta Parasitologica

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2013

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tom 58

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nr 3

EN

A new opecoelid trematode, Peracreadium akenovae sp. nov., is described from the highfin moray eel Gymnothorax pseudothyrsoideus (Bleeker) (Anguilliformes; Muraenidae), collected from Moreton Bay off southeast Queensland, Australia. The new species is distinctive in its body shape, transversely elongate irregular testes, vitelline follicles interrupted at the level of the ventral sucker, and diverticulate excretory vesicle. The Muraenidae is a new host family for Peracreadium Nicoll, 1909. Peracreadium is the seventh opecoelid genus reported from temperate eastern Australian marine fishes and this is its first report from Australian waters.

10

Diploproctodaeum spp. [Digenea, Lepocreadiidae] in Australian and New Caledonian waters including two new species from Tetraodontiformes and new records of related species

80%

Bray R. A. , Cribb T. H. , Justine J.-L.

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tom 55

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nr 4

313-326

EN

Diploproctodaeum monstrosum sp. nov. is described from Arothron stellatus and A. mappa from off Lizard Island, northern Great Barrier Reef. It differs from its congeners in having a body-length ventral scoop. Diploproctodaeum triodoni sp. nov. is described from Triodon macropterus off New Caledonia. It is distinguished by the extensive vitelline fields usually reaching to the ventral sucker and the folded scoop margins. Other related species are reported from new hosts or localities and dimensions are supplied for: Diploproctodaeum haustrum from Aluterus monoceros off New Caledonia; Diploproctodaeum arothroni from Arothron hispidus off Lizard Island and Ningaloo Reef, northern Western Australia, A. nigropunctatus off Lizard Island and Arothron manilensis off New Caledonia; Diploproctodaeum macracetabulum from Abalistes stellatus on the Swain Reefs, southern Great Barrier Reef and off New Caledonia; Diploproctodaeum momoaafata from Ostracion cubicus off Lizard Island; Diploproctodaeum rutellum from Platax teira off Heron Island, southern Great Barrier Reef; Diploproctodaeoides longipygum from Abalistes stellatus on the Swain Reefs and off New Caledonia; Diplocreadium tsontso from Balistoides conspicillum off Heron Island; Bianium arabicum from Lagocephalus sceleratus off New Caledonia. Attention is drawn to apparent convergent evolution in the body form of several families of trematodes infecting tetraodontids and especially species of Arothron.

FR

Diploproctodaeum monstrosum sp. nov. est décrit de Arothron stellatus et A. mappa de Lizard Island, nord de la Grande Barrière de Corail. L’espèce diffère de ses congénères par sa cuillère ventrale aussi longue que le corps. Diploproctodaeum triodoni sp. nov. est décrit de Triodon macropterus de Nouvelle-Calédonie. L’espèce est caractérisée par ses champs vitellins très développés atteignant généralement la ventouse ventrale, et par les bords plissés de la cuillère. D’autres espèces proches sont signalées de nouveaux hôtes ou localités, et leurs dimensions sont fournies: Diploproctodaeum haustrum de Aluterus monoceros en Nouvelle-Calédonie; Diploproctodaeum arothroni de Arothron hispidus de Lizard Island et Ningaloo Reef, nord de l’Australie Occidentale; Diploproctodaeum macracetabulum de Abalistes stellatus des Swain Reefs, sud de la Grande Barrière de Corail et de Nouvelle-Calédonie; Diploproctodaeum momoaafata de Ostracion cubicus de Lizard Island; Diploproctodaeum rutellum de Platax teira de Heron Island, sud de la Grande Barrière de Corail; Diploproctodaeoides longipygum de Abalistes stellatus des Swain Reefs et de Nouvelle-Calédonie; Diplocreadium tsontso de Balistoides conspicillum de Heron Island; Bianium arabicum de Lagocephalus sceleratus de Nouvelle-Calédonie. L’attention est attirée sur l’évolution apparemment convergente de la forme du corps chez plusieurs familles de trématodes infectant les Tetraodontidae, spécialement les espèces d’Arothron.

11

Molecular phylogeny of the Haplosplanchnata Olson, Cribb, Tkach, Bray and Littlewood, 2003, with a description of Schikhobalotrema huffmani n. sp.

80%

Huston D. C. , Cutmore S. C. , Cribb T. H.

Acta Parasitologica

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2017

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tom 62

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nr 3

12

Varialvus gen. nov. [Digenea, Cryptogonimidae], from species of Lutjanidae [Perciformes] off the Great Barrier Reef, New Caledonia and the Maldives

80%

Miller T. L. , Bray R. A. , Justine J.-L. , Cribb T. H.

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tom 55

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nr 4

327-339

EN

A survey of the cryptogonimid trematode fauna infecting Indo-West Pacific Lutjanidae (Perciformes) revealed the presence of four new species whose morphological and genetic differences relative to all other known cryptogonimids warrants the proposal of a new genus, Varialvus gen. nov. Species of this new genus were recovered from sites off Heron and Lizard Islands on the Great Barrier Reef, Australia, New Caledonia and Rasdhoo Atoll, Maldives. Varialvus gen. nov. is distinguished from all other cryptogonimid genera by the combination of a fusiform to oval body, the relatively small number of large oral spines, a median ovary which is relatively condensed and highly lobed, opposite to slightly oblique testes, uterine loops that are restricted to the hindbody and extend well posterior to the testes, and vitelline follicles that are mainly in the forebody but may extend from the anterior margin of the ovary to anterior to the intestinal bifurcation. Bayesian inference analysis of partial large subunit (LSU) rDNA sequence data for these species revealed that they formed a monophyletic clade, despite V. charadrus sp. nov. having a distinctly muscular gonotyl, which based on morphological characters alone may have warranted placement in a separate genus in the absence of DNA sequence data. At least one species of Varialvus gen. nov. is apparently widespread in the Indo-West Pacific. Three species, V. lacertus sp. nov., V. jenae sp. nov. and V. angustus sp. nov. have each been found at only one locality, but V. charadrus sp. nov. was recovered from lutjanids off the Great Barrier Reef, New Caledonia and the Maldives, demonstrating a biogeographic range of at least 10,000 kilometres. Siphoderina lutjani (Saoud, Ramadan et Al Kawari, 1988) Miller et Cribb, 2008 is transferred here as V. lutjani (Saoud, Ramadan et Al Kawari, 1988) n. comb. based on morphological and host group agreement with species of Varialvus gen. nov.

13

Two new species of lepidapedines [Digenea, Lepocreadiidae] from the King George whiting Sillaginodes punctata [Perciformes, Sillaginidae] from off Kangaroo Island, South Australia

80%

Bray R. A. , Cribb T. H. , Pichelin S. P.

Acta Parasitologica

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1999

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tom 44

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nr 2

EN

Two new lepidapedine lepocreadiids, Austroholorchis procerus sp. n. and Lepidapedella sillaginodesi gen. n., sp. n., are described from the teleost Sillaginodes punctata taken near Kangaroo Island, South Australia. Austroholorchis procerus is distinguished from its congeners by its elongate shape, the extent of the vitelline fields, the confluence of vitelline fields between the testes and the length of the hindbody. Lepidapedella sillaginodes is distinguished from most lepidapedine genera by the delimited external seminal vesicle (also interpretable as the proximal part of a bipartite cirrus-sac). The new genus is distinguishable from its closest relative, Lepidapedon, by the narrow internal male duct, the position of the ovary adjacent to the ventral sucker, by muscular features associated with the metraterm and the distribution of the uterus. Some general features of digenean parasites in sillaginid fishes are discussed.

14

A new species of Stephanostomum Looss, 1899 [Digenea, Acanthocolpidae] with a bizarre oral sucker: S.adlardi sp.nov. from the common coral trout Plectropomus leopardus [Lacepede, 1802] [Perciformes, Serranidae] from Lizard Island, Great Barrier Reef

80%

Bray R. A. , Cribb T. H. , Waeschenbach A. , Littlewood D. T. J.

Acta Parasitologica

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2007

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tom 52

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nr 3

EN

Bray R., Justine J.-L. 2007. Pseudopycnadena tendu sp. nov. (Digenea, Opecoelidae) in the yellow-spotted triggerfish Pseudobalistes fuscus (Perciformes, Balistidae) and additional opecoelids parasitizing fishes from the waters off New Caledonia. Acta Parasitologica, 52, 13–17. DOI: 10.2478/s11686-006-0051-3. CrossRefGoogle Scholar Hinsinger D.D., Justine J.-L. 2006. The ‘Pseudorhabdosynochus cupatus group’ (Monogenea, Diplectanidae) on Epinephelus fasciatus, E. howlandi, E. rivulatus and E. merra (Perciformes: Serranidae) off New Caledonia, with descriptions of Pseudorhabdosynochus cyathus n. sp. and P. calathus n. sp. Systematic Parasitology, 64, 69–90. DOI: 10.1007/s11230-005-9018-2. PubMedCrossRefGoogle Scholar Justine J.-L. 2005. Species of Pseudorhabdosynochus Yamaguti, 1958 (Monogenea, Diplectanidae) from Epinephelus fasciatus and E. merra (Perciformes, Serranidae) off New Caledonia and other parts of the Indo-Pacific Ocean, with a comparison of measurements of specimens prepared with different methods and a description of P. caledonicus n. sp. Systematic Parasitology, 62, 1–37. DOI: 10.1007/s11230-005-5480-0. PubMedCrossRefGoogle Scholar Justine J.-L. 2007. Parasite biodiversity in a coral reef fish: twelve species of monogeneans on the gills of the grouper Epinephelus maculatus (Perciformes: Serranidae) off New Caledonia, with a description of eight new species of Pseudorhabdosynochus (Monogenea: Diplectanidae). Systematic Parasitology, 66, 81–129. DOI: 10.1007/s11230-006-9057-3. PubMedCrossRefGoogle Scholar Laboute P., Grandperrin R. 2000. Poissons de Nouvelle-Calédonie. Éditions Catherine Ledru, Nouméa, New Caledonia, 520 pp. Google Scholar Randall J.E. 2005. Reef and Shore Fishes of the South Pacific. New Caledonia to Tahiti and the Pitcairn Islands. University of Hawai’i Press, Honolulu, 707 pp. Google Scholar Zeng B., Yang T. 2007. Description of Pseudorhabdosynochus justinei n. sp. (Monogenea: Diplectanidae) and redescription of P. vagampullum (Young, 1969) Kritsky & Beverley-Burton, 1986 from the gills of the longfin grouper Epinephelus quoyanus (Valenciennes) (Perciformes: Serranidae) in Dapeng Bay, South China Sea. Systematic Parasitology, 66, 223–235. DOI: 10.1007/s11230-006-9067-1.

15

The phylogeny of the Lepocreadioidea [Platyhelminthes, Digenea] inferred from nuclear and mitochondrial genes: Implications for their systematics and evolution

61%

Bray R. A. , Waeschenbach A. , Cribb T. H. , Weedall G. D. , Dyal P. , Littlewood D. T. J.

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nr 4

310-329

EN

The phylogenetic relationships of representative species of the superfamily Lepocreadioidea were assessed using partial lsrDNA and nad1 sequences. Forty-two members of the family Lepocreadiidae, six putative members of the Enenteridae, six gyliauchenid species and one Gorgocephalidae, were studied along with 22 species representing 8 families. The Lepocreadioidea is found to be monophyletic, except for the two species of the putative enenterid genus Cadenatella, which are found to be only distantly related to the lepocreadioids. The Lepocreadioidea is formed of five clades in a polytomy, the Gorgocephalidae, a clade containing the Enenteridae and Gyliauchenidae, a small clade of atypical lepocreadiines and the deep-sea lepidapedine lepocreadiids, a small clade consisting of a freshwater form and a group of shallow-water putative lepidapedines and the final clade includes the remaining lepocreadiids. Thus, the generally accepted concept of the Lepocreadiidae is polyphyletic. The Enenteridae (minus Cadenatella) and the Gyliauchenidae are jointly and individually monophyletic, and are sister groups. The nad1 gene on its own places a deep-sea lepocreadiine with the deep-sea lepidapedines, whereas lsrDNA, combined sequences and morphology place this deep-sea lepocreadiine within a group of typical lepocreadiids. It could not be demonstrated that a significant proportion of sites in the nad1 gene evolved under positive selection; this anomalous relationship therefore remains unexplained. Most deep-sea species are in a monophyletic group, a few of which also occur in shallow waters, retaining some characters of the deep-sea clade. Many lepocreadioid species infect herbivorous fish, and it may be that the recently discovered life-cycle involving a bivalve first intermediate host and metacercariae encysted on vegetation is a common life-cycle pattern. The host relationships show no indication of co-speciation, although the host-spectrums exhibited are not random, with related worms tending to utilize related hosts. There are, however, many exceptions. Morphology is found to be of limited value in indicating higher level relationships. For example, even with the benefit of hindsight the gyliauchenids show little morphological similarity to their sister group, the Enenteridae.