Notes on parasites of Bermuda fishes

Linton, Edwin

doi:10.5479/si.00963801.33-1560.85

Cited by 71 publications

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“…Linton (1901Linton ( , 1907) also reported Philometra globiceps (Rudolphi, 1819) from five fish species belonging to the Belonidae, Lobotidae, Megalopidae, Pomatomidae and Scombridae off the USA (Massachusetts) and Bermudas, but this identification is doubtful (Petter andRadujkoviae 1989, Moravec 2006). Philometra charlestonensis sp.…”

Section: Philometra Sp (Figs 4 and 5)mentioning

confidence: 99%

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

Moravec

Buron

Baker

et al. 2008

Acta Parasitologica

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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.

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Section: Philometra Sp (Figs 4 and 5)mentioning

confidence: 99%

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

Moravec

Buron

Baker

et al. 2008

Acta Parasitologica

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“…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. …”

mentioning

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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“…A survey of the sizes of P. subtenuis recorded from natural infections of labrid and sparid fishes reveals an interesting fact never previously noted. Altogether 32 specimens of the digenean have been recorded from these families of fish, 21 from 4 species of Sparidae and I I from 5 species of Labridae, and 7 of the specimens from labrids have been described as small or immature (Odhner, 19II;Linton, 1907), whereas no such comment has been made on any specimens from a sparid. The only record of P. subtenuis from a fish of another family is that of Manter (1954), who found 3 mature and 2 immature specimens in Latridopsis ciliaris (Forster) (family Latridae).…”

Section: Discussionmentioning

confidence: 99%

“…major Yamaguti, 1934, and P. insolitus (Nicoll, 1915) are declared synonymous with P. subtenuis (Linton, 1907).…”

Section: Discussionmentioning

confidence: 99%

Experimental Infection of Two Species of Wrasse With The Digenean Proctoeces Subtenuis

Freeman¹

1963

J. Mar. Biol. Ass.

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Uzmann (1959), and by Uzmann (1953). P. subtenuis has usually been recorded from the hind-gut oflabrid and sparid fishes in tropical and subtropical seas, and Freeman & Llewellyn suggested that the occurrence of adult forms of the parasite in an invertebrate host was probably abnormal, and that the more normal life cycle includes a vertebrate as the definitive host. In Britain P. subtenuis has never been recorded from a fish, and so it has not been possible to make a direct comparison of specimens from an invertebrate with specimens from a vertebrate. It was therefore decided to attempt to infect suitable British fishes with specimens of P. subtenuis obtained from S. plana, and to compare any surviving parasites from these fishes with others collected directly from the mollusc. MATERIALS AND METHODSThe fishes used in the experiments were the only two labrids available in sufficiently large numbers in the Plymouth area, the two wrasse species Ctenolabrus rupestris (L.) and Crenilabrus melops (L.). A total of 35 wrasse was used, the fishes being divided into two groups. Those of the first group of 18 (10 C. rupestris and 8 C. melops) were killed and their alimentary canals examined. Many of them were found to contain adult digeneans belonging to the family Allocreadiidae, as had been recorded previously by Nicoll (1910, 1914), and one of them had two unidentified metacercariae encysted in the peritoneal fat, but not one of them contained a single specimen of P. subtenuis. It was therefore assumed that the remaining 17 wrasse (7 C. rupestris and 10 C. melops) to be used in subsequent experiments were free from naturally occurring P. subtenuis. These 17 specimens of wrasse varied in length between 10 and 20 em. The sizes of the fishes in which P. subtenuis 8

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Notes on parasites of Bermuda fishes

Cited by 71 publications

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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

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

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

Experimental Infection of Two Species of Wrasse With The Digenean Proctoeces Subtenuis

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