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1

Description of two new species of Philometra Costa, 1845 (Nematoda: Philometridae) from marine fishes off Japan, with notes on Philometroides seriolae (Yamaguti, 1935)

100%

Moravec F. , Ogawa K.

Acta Parasitologica

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2019

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tom 64

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nr 4

2

On two species of Philometra [Nematoda, Philometridae] from the serranid fish Epinephelus septemfasciatus in Japan

100%

Moravec F. , Ogawa K. , Suzuki M. , Miyazaki K. , Donai H.

Acta Parasitologica

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2002

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tom 47

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nr 1

EN

Two nematode species of the genus Philometra Costa, 1845 (only females), P. ocularis sp. nov. and P. managatuwo Yamagutl, 1941 were recorded from the ocular cavity and the gonad, respectively, of the serranid fish (grouper) Epinephelus septemfasciatus (Thunberg) from the coast of the Tsushima Island, Nagasaki Prefecture, Japan. The new species is mainly characterized by the presence of four conspicuously large, crescent-shaped, fleshy cephalic papillae of the external circle and two small, subterminal papilla-like projections on the caudal end. Philometra cephalus is transferred to the genus Philometroides Yamaguti, 1935 as P. cephalus (Ramachandran, 1975) comb. nov. The finding of P. managatuwo represents the second record of this species and a new host record.

3

Three species of Philometra [Nematoda, Philometridae] from marine fishes off Corsica, France

100%

Moravec F. , Ternengo S. , Levron C.

Acta Parasitologica

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2006

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tom 51

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nr 2

EN

Gravid or subgravid females of the following three species belonging to the nematode genus Philometra were collected from marine perciform fishes of the Bonifacio Strait Marine Reserve, Corsica, France: Philometra justinei sp. nov. (prevalence 1.5%, intensity 11) and Philometra sp. (prevalence 3%, intensity 2) from the abdominal cavity and gonads, respectively, of the striped red mullet Mullus surmuletus (Mullidae), and Philometra serranellicabrillae Janiszewska, 1949 (prevalence 27%, intensity 2–6) from the gonads of the comber Serranus cabrilla (Serranidae). The newly described species, P. justinei, is mainly characterized by the absence of an anterior bulbous inflation of the oesophagus, body length of the gravid female (196 mm), conspicuously large amphids, number and distribution of cephalic papillae, and the morphology of larvae. It is the second known species of Philometra parasitizing fishes of the family Mullidae and the ninth species of this genus reported from marine fishes of the Mediterranean region. P. serranellicabrillae, studied for the first time by SEM, is redescribed.

4

Gonad-infecting species of Philometra (Nematoda: Philometridae) from groupers Epinephelus spp. (Osteichthyes: Serranidae) in the Bay of Bengal, India

80%

Moravec F. , Manoharan J.

Acta Parasitologica

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2014

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tom 59

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nr 4

EN

Based on light and scanning electron microscopical studies, two new and one specifically not identified gonad-infecting species of Philometra Costa, 1845 (Nematoda: Philometridae) are described from the ovary of marine fishes of the genus Epinephelus Bloch (Serranidae, Perciformes) in the Bay of Bengal, off the eastern coast of India: P. indica sp. nov. (male and females) from the honeycomb grouper E. merra Bloch, P. tropica sp. nov. (males and females) from the duskytail grouper E. bleekeri (Vaillant) and Philometra sp. (only females) from the cloudy grouper E. erythrurus (Valenciennes). Philometra indica is mainly characterized by the length of spicules 192–195 μm and the gubernaculum 84 μm, the distal tip of the gubernaculum without a dorsal protuberance, and by the presence of five pairs of caudal papillae. Philometra tropica is mainly characterized by the spicules conspicuously ventrally distended at their posterior halves, the distal tip of the gubernaculum with a dorsal protuberance, and the presence of three pairs of caudal papillae.

5

Dichelyne (Dichelyne) spinigerus sp. nov. (Nematoda: Cucullanidae) from the marine fish Otolithes ruber (Sciaenidae) off Iran and first description of the male of Philometra otolithi Moravec et Manoharan, 2013 (Nematoda: Philometridae)

80%

Moravec F. , Khosheghbal M. , Pazooki J.

Acta Parasitologica

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2014

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tom 59

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nr 2

EN

Recent parasitological examinations of the marine perciform fish (tigerteeth croaker) Otolithes ruber (Bloch et Schneider) (Sciaenidae) from off Iran yielded one new and one previously known nematode species: Dichelyne (Dichelyne) spinigerus sp. nov. (Cucullanidae) from the host’s intestine in the Persian Gulf and Philometra otolithi Moravec et Manoharan, 2013 (Philometridae) from the ovary in the Persian Gulf and the Sea of Oman. The new species D. spinigerus is mainly characterized by the tail tip of both sexes terminating in two shaply pointed spikes (one dorsal and one ventral) and bearing a pair of minute lateral cuticular spines at its base, situation of both deirids and the excretory pore well posterior to the level of the posterior end of oesophagus, absence of a precloacal sucker and the presence of one or two intestinal caeca. The male and small mature females of the gonad-infecting species P. otolithi are described for the first time, based on light and scanning electron microscopical studies. The male of P. otolithi is most similar to that of P. johnii Moravec et Ali, 2013, but differs from it by the structure of the cephalic end and the number of caudal papillae; both species also differ from each other by the presence of transverse lamellae in the buccal cavity of gravid and subgravid females of P. otolithi, which are missing in those of P. johnii.

6

New data on three gonad-infecting species of Philometra [Nematoda, Philometridae] from estuarine fishes in South Carolina, USA

80%

Moravec F. , de Buron I.

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tom 54

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nr 3

244-252

EN

The following three gonad-infecting species of Philometra Costa, 1845 (Nematoda, Philometridae) were recorded from offshore perciform fishes in South Carolina, USA: Philometra carolinensis Moravec, de Buron et Roumillat, 2006 from the southern kingfish Menticirrhus americanus (Linnaeus) (Sciaenidae) (new host record), Philometra floridensis Moravec, Fajer-Avila et Bakenhaster, 2009 from the red drum Sciaenops ocellatus (Linnaeus) (Sciaenidae), and Philometra saltatrix Ramachandran, 1973 from the bluefish Pomatomus saltatrix (Linnaeus) (Pomatomidae). Findings of the first two species represent the second records since their original descriptions and P. floridensis was for the first time recorded from South Carolina estuaries. Detailed study of these nematode species, using both light (LM) and scanning electron microscopy (SEM), revealed the presence of minute caudal projections in the gravid female of P. carolinensis and four pairs of caudal papillae in the conspecific male; the cephalic and caudal ends of this species were for the first time examined by SEM. The related species P. carolinensis and P. floridensis, both parasitizing sciaenid fishes, can be distinguished from each other mainly by the presence/absence of oesophageal teeth, lengths of spicules and body lengths of gravid females. The morphology of North American specimens of P. saltatrix was found to be identical with that of specimens from Europe, thus confirming their conspecificity.

7

A new species of Philometra [Nematoda, Philometridae] from the gonads of the rosk hind Epinephelus adscensionis [Osteichthyes] from the Southern Gulf of Mexico

80%

Moravec F. , Salgado-Maldonado G.

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nr 4

EN

A new species of parasitic nematode, Philometra mexicana sp. nov. (Philometridae), is described based on males and females parasitizing the gonads of the marine perciform fish (rock hind) Epinephelus adscensionis (Osbeck) (Serranidae) off the coast of the southern Gulf of Mexico (reefs of the Enmedio Island, Veracruz), Mexico, collected on 10 April 1990. The new species is characterized mainly by very small males (body length 1.63–1.86 mm) with equally long, needle-like spicules (length 90–120 μm) and the gubernaculum (57–66 μm) without the usual dorsal barb on the distal end, the body length of gravid females (178–230 mm), the presence of a well-developed anterior bulbous inflation on the female oesophagus, and by the length of the first-stage larvae (420–435 μm). A comparison with other congeners parasitizing the gonads of marine fishes is provided. The cephalic end of the gravid female of Philometra margolisi Moravec, Vidal-Martínez et Aguirre-Macedo, 1995, another related species from the gonads of Epinephelus [E. morio (Valenciennes)] in Mexico, has been studied by SEM for the first time; it confirms the arrangement of the cephalic papillae as reported in the original species description. Philometra mexicana is the fifth species of Philometra reported from the gonads of marine fishes in the West Atlantic region.

8

Some philometrid nematodes [Philometridae], including four new species of Philometra, from marine fishes off New Caledonia

80%

Moravec F. , Justine J.-L.

Acta Parasitologica

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2008

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tom 53

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nr 4

EN

Examinations of marine fishes off New Caledonia, South Pacific, carried out in 2003–2006, yielded some nematodes of the genus Philometra Costa, 1845, including the following three new species: P. cyanopodi sp. nov. (males and subgravid females) and P. lethrini sp. nov. (males and subgravid females) from the gonads of Epinephelus cyanopodus (Richardson) (Serranidae) and Lethrinus genivittatus Valenciennes (Lethrinidae), respectively, and P. lagocephali sp. nov. (gravid female) from the abdominal cavity of Lagocephalus sceleratus (Gmelin) (Tetraodontidae). Another congeneric species P. fasciati sp. nov. from the gonads of Epinephelus fasciatus (Forsskål) (Serranidae), originally reported as P. lateolabracis (Yamaguti, 1935), has been established with reference to the description of males and a mature female published by Moravec and Justine (2005). The new species are characterized mainly by the length of spicules and the length and structure of the gubernaculum, structure of the male caudal end (except for P. lagocephali), body size, location in the host and by the types of hosts. In addition, Philometra sp. (subgravid females) from the gonads of Lutjanus vitta (Quoy et Gaimard) (Lutjanidae) and Philometra cf. ocularis Moravec et al., 2002 (gravid female) from the oculo-orbit of Epinephelus areolatus (Forsskål) were found, the latter representing a new host record.

FR

L’examen de poissons marins de Nouvelle-Calédonie, Pacifique Sud, pratiqué en 2003–2006, a permis de récolter des nématodes du genre Philometra Costa, 1845, y compris les espèces nouvelles suivantes: P. cyanopodi sp. nov. (mâles et femelles subgravides) et P. lethrini sp. nov. (mâles et femelles subgravides) respectivement des gonades de Epinephelus cyanopodus (Richardson) (Serranidae) et Lethrinus genivittatus Valenciennes (Lethrinidae), et P. lagocephali sp. nov. (femelle gravide) de la cavité abdominale de Lagocephalus sceleratus (Gmelin) (Tetraodontidae). Une autre espèce congénérique P. fasciati sp. nov., des gonades de Epinephelus fasciatus (Forsskål) (Serranidae), originellement rapportée comme P. lateolabracis (Yamaguti, 1935), a été établie par référence à la description des mâles et d’une femelle mûre publiée par Moravec et Justine (2005). Les nouvelles espèces sont caractérisées principalement par la longueurs du spicule, la structure du gubernaculum, la structure de l’extrémité caudale du mâle (sauf pour P. lagocephali), la taille du corps, la position chez l’hôte et le type d’hôte. De plus, Philometra sp. (femelles subgravides) des gonades de Lutjanus vitta (Quoy et Gaimard) (Lutjanidae) et Philometra cf. ocularis Moravec et al., 2002 (femelle gravide) de l’œil et de l’orbite de Epinephelus areolatus (Forsskål) ont été trouvés, le dernier représentant un nouvel hôte.

9

Two species of Philometra [Nematoda, Philometridae] from serranid fishes off New Caledonia

80%

Moravec F. , Justine J. L.

Acta Parasitologica

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2005

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tom 50

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nr 4

EN

Two nematode species of the genus Philometra Costa, 1845, P. ocularis Moravec, Ogawa, Suzuki, Miyazaki et Donai, 2002 (gravid and nongravid females) and P. lateolabracis (Yamaguti, 1935) (males and nongravid females), were recorded from the ocular cavity and ovaries, respectively, of serranid fishes (Serranidae, Perciformes) off New Caledonia, South Pacific. The gravid female of P. ocularis was found to attain a body length up to 96 mm (as compared to 59 mm in the original description). The males of P. lateolabracis are described from fishes of the Pacific region for the first time; their spicules were found to be 147-213 µm in length, suggesting thus the synonymy of the recently re-established species P.jordanoi (López-Neyra, 1951) with P. lateolabracis. The findings of P. ocularis in Epinephelus coioides, E. cyanopodus, E. rivulatus and Variola louti, and P. lateolabracis in Epinephelus cyanopodus and E. fasciatus represent new host records. Both nematode species are reported for the first time from the region of New Caledonia, and P. ocularis from the South Pacific Ocean.

FR

Deux espèces de Nématodes du genre Philometra Costa, 1845, P. ocularis Moravec, Ogawa, Suzuki, Miyazaki et Donai, 2002 (femelles gravides et non gravides) et P. lateolabracis (Yamaguti, 1935) (mâles et femelles non gravides), ont été recensées des cavités oculaires et des ovaires, respectivement, de mérous (Perciformes, Serranidae) de Nouvelle-Calédonie, Pacifique Sud. La femelle gravide de P. ocularis atteint une longueur de 96 mm (à comparer aux 59 mm de la description originale). Les mâles de P. lateolabracis sont décrits de poissons du Pacifique pour la première fois; leurs spicules sont longs de 147-213 µm, ce qui suggère la synonymie de l'espèce récemment ré-établie P. jordanoi (López-Neyra, 1951) avec P. lateolabracis. P. ocularis chez Epinephelus coioides, E. cyanopodus, E. rivulatus et Variola louti, et P. lateolabracis chez Epinephelus cyanopodus et E.fasciatus fournissent des mentions de nouveaux hôtes. Les deux espèces de Nematodes sont mentionnées pour la première fois de Nouvelle-Calédonie, et P. ocularis pour la première fois dans l'Océan Pacifique Sud.

10

Philometra thaiensis sp.nov. [Nematoda, Philometridae] from Tetraodon palembangensis and T.fluviatilis [Pisces] from fresh waters in Thailand, with a key to Philometra spp. parasitic in the host's abdominal cavity

80%

Moravec F. , Fiala I. , Dykova I.

Acta Parasitologica

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2004

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tom 49

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nr 4

EN

A new nematode species, Philometra thaiensis sp. nov., is described from gravid female specimens collected from the abdominal cavity of two freshwater Tetraodon spp., T. palembangensis (type host) and T.fluviatilis (Pisces, Tetraodontidae), after their import from Thailand into the Czech Republic in October 1998. It is characterized mainly by its body length (40.46-49.34 mm), arrangement and number of small cephalic papillae (eight papillae in outer circle and six papillae in inner one), structure and length (0.84-1.40 mm) of the oesophagus, short ovaries, and the absence of caudal projections. A key to Philometra spp. with gravid females parasitic in the abdominal cavity of fishes is provided.

11

Redescription of three Philometra spp. [Nematoda, Philometridae] from the gonads of marine perciforms fishes of Iskenderun Bay [North-East Mediterranean], Turkey

80%

Moravec F. , Genc E.

Acta Parasitologica

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2004

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tom 49

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nr 1

EN

The following three species of Philometra Costa, 1845 were recorded from the gonads of marine perciform fishes off the northeastern coast of the Mediterranean Sea (Iskenderun Bay), Turkey: P. lateolabracis (Yamaguti, 1935) from Epinephelus marginatus (Lowe, 1834) and Mycteroperca rubra (Bloch, 1793) (both Serranidae), P. filiformis (Stossich, 1896) from Pagellus erythrinus (Linnaeus, 1758) (Sparidae), and P. saltatrix Ramachandran, 1973 from Pomatomus saltatrix (Linnaeus, 1766) (Pomatomidae). New data on the morphology of all these histozoic parasites were obtained with the use of light and scanning electron microscopy, which made it possible to redescribe these so far little-known species. Males of P. lateolabracis were redescribed in detail on the basis of specimens recovered from M. rubra; conspecific mature females from the same host were described for the first time. Philometra saltatrix was found for the first time since its original description and for the first time outside North America. The finding of P. lateolabracis in M. rubra represents a new host record. The possible importance of these pathogenic parasites for cultures of marine perciform fishes is stressed. A key to Philometra spp. parasitic in the gonads of marine fishes is provided.

12

Some gonad-infecting species of Philometra [Nematoda, Philometridae] from offshore fishes of South Carolina and Georgia, USA, including Philometra charlestonensis sp.nov. from the scamp Mycteroperca phenax

70%

Moravec F. , De Buron I. , Baker T. G. , Gonzalez-Solis D.

Acta Parasitologica

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2008

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tom 53

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nr 4

EN

Three gonad-infecting species of Philometra Costa, 1845 were, for the first time, recorded from perciform fishes from estuarine and marine waters in South Carolina and Georgia, USA: Philometra charlestonensis sp. nov. from the scamp Mycteroperca phenax (Jordan et Swain) (Serranidae), P. saltatrix Ramachandran, 1973 from the bluefish Pomatomus saltatrix (Linnaeus) (Pomatomidae), and Philometra sp. from the Atlantic croaker Micropogonias undulatus (Linnaeus) (Sciaenidae). The new species is characterized mainly by males (body length 2.65–3.14 mm) with equally long, needle-like spicules (length 132–141 μm) and the gubernaculum (81–93 μm) bearing dorsal transverse lamella-like structures on its distal portion, the body length of gravid females (168–247 mm), the presence of a well-developed anterior bulbous inflation on the female oesophagus, and by the length of the first-stage larvae (544–597 μm). A key to gonad-infecting species of Philometra parasitizing marine and brackish-water fishes is provided.