Stages in the Development of Larval Echinostomes recovered from Schistosome Transmitting Molluscs in Central Africa

Bisseru, B.

doi:10.1017/s0022149x00021519

Cited by 14 publications

(13 citation statements)

References 5 publications

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“…Cercariae ofEchinoparyphium recurvatum and Echinostoma revolutum which have been frequently reported from schistosome intermediate hosts in other parts of Africa (Bisseru, 1967;Moravec, Barus, Rysavy & Yousif, 1974;Wright, Rollinson & Goll, 1979) were not found in the 9 habitats studied.…”

Section: Discussionmentioning

confidence: 86%

Trematode–gastropod associations in nine non-lacustrine habitats in the Mwanza region of Tanzania

1981

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SUMMARYBetween August 1978 and July 1979, freshwater gastropods were collected at monthly intervals from 9 different non-lacustrine habitats in the Mwanza region of Tanzania. Of a total of 11 708 gastropods representing 14 species, 1748 (14'9 %) were infected with trematode sporocysts and/or rediae. Altogether 38 morphologically distinguishable' species' of cercariae were recovered (13 furcocercous, 10 xiphidiocercaria, 6 echinostome, 4 cystophorous, 3 gymnocephalous and 2 amphistome species), 22 of which did not conform to previously described African species. The majority (63'8 %) of all mature infections were xiphidiocercariae. Biomphalaria pfeifferi, B. sudanica and Ceratophallus natalensis each yielded 11 species of cercariae. Lymnaea natalensis had the highest overall prevalence of infection (36'9 %). Cercaria guttera from L. natalensis accounted for 20·4 % of all recovered trematode infections and C. blukwa from Biomphalaria accounted for 18'4 % of all infections; the high prevalence of these two xiphidiocercariae may alter the transmission patterns of Fasciola gigantica and Schistosoma mansoni, respectively. S. mansoni was recovered from both B. sudanica (22 of 2393 infected) and B. pfeifferi (79 of 1913 infected); S. haematobium (or related species) was recovered from Bulinus (Physopsis) nasutus (50 of 1503 infected) and to a lesser extent from B. (P.) africanus (6 of 186 infected). The findings are discussed in relation to the biological control of trematode diseases in Tanzania.

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Section: Discussionmentioning

confidence: 86%

Trematode–gastropod associations in nine non-lacustrine habitats in the Mwanza region of Tanzania

1981

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“…Following Dietz (1909a,b) adult worms and larval stages found in Europe, Asia, Africa, Australia, and North and South America have been described as E. revolutum in over 500 works. Of all the published descriptions, those considered the most important are by Johnson (1920), Lutz (1924), Beaver (1937), Mendheim (1940Mendheim ( , 1943, Supperer (1959), Skrjabin (1947Skrjabin ( , 1956, Bisseru (1953Bisseru ( , 1967, Yamaguti (1975), Odening (1964), Patnaik & Ray (1966), McDonald (1981), Kosupko (1972), Moravec et al (1974) and Nasincova (1986). The present-day knowledge of E. revolutum is based mainly on descriptions and illustrations published by these authors.…”

Section: Delimitation Of Echinostoma Revolutummentioning

confidence: 99%

“…of Johnson (1920), described as E. revolutum by Looss (1899), Dietz (1909a,b), Lutz (1924), Johnson (1920), Beaver (1937) and Bashkirova (1941). E. revolutum described by Bisseru (1953Bisseru ( , 1967 is…”

Section: Invalid Descriptions Of Echinostoma Revolutummentioning

confidence: 99%

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Life-cycle, delimitation and redescription of Echinostoma revolutum (Froelich, 1802) (Trematoda: Echinostomatidae)

1994

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The life-cycle of Echinostoma revolutum (Froelich, 1802) Dietz, 1909 has been completed experimentally beginning with infected snails collected at the type-locality, near Erlangen, Germany. Based on the specimens obtained, each stage of the life-cycle has been redescribed. Important taxonomic features are discussed and hitherto unknown characteristics are described. Synonyms for E. revolutum are: Fasciola revoluta Froelich, 1802; Echinostoma paraulum Dietz, 1909; E. audyi Lie & Umathevy, 1965; and E. ivaniosi Mohandas, 1973. Adults and larvae described as E. revolutum in other works are found to be identical with Echinostoma echinatum (Zeder, 1803), E. trivolvis (Cort, 1914), E. jurini (Skvortsov, 1924), E. caproni Richard, 1964, Moliniella anceps (Molin, 1859), Echinochasmus beleocephalus (Linstow, 1873) and other echinostome species. For nearly a century, incorrect morphological, biological, life-cycle and host information has been attributed to E. revolutum, and at times these data have contributed to the diagnoses of the species. Occasionally, authors actually working with E. revolutum have ascribed their results to other species. Based on extensive experimental life-cycle studies beginning with infected snails from type-localities, it is shown that (1) the first intermediate host is a lymnaeid snail; (2) the second intermediate hosts are various pulmonate and prosobranch snails, mussels, frogs and freshwater turtles; (3) the final hosts are birds; (4) E. revolutum cercariae and adults have 37 collar spines; (5) the species occurs only in Europe and Asia; (6) Cercaria echinata Siebold, 1937, Echinostoma echinatum (Zeder, 1803) and E. jurini (Skvortsov, 1924 are the closely related 37-spined allies in Europe; and (7) species specific characteristics are expressed only in the larvae and the host-parasite relationships. The adults of E. revolutum cannot be identified using morphological criteria and it is proposed that worms with 37 collar spines belonging to the genus Echinostoma and occurring in naturally infected birds in Europe and Asia be referred to an "E. revolutum group."

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“…The shape of the testes is also regarded as being of taxonomic importance and according to Dawes (1956) and Yamaguti (1958) is ovoid and lobed in Echinoparyphium. Various authors (Bisseru 1967;Lie, Heyneman, Jeyarasasingarn, Mansour, Lee, Lee & Kostanian 1975;Lie & Umathevy 1965;Taplin 1964) have, however, illustrated species 0 f Echinoparyphium possessing testes varying in shape from elongate to almost circular and seldom lobed.…”

Section: Discussionmentioning

confidence: 99%

The life-cycle and seasonal abundance ofEchinoparyphium montgomeriana n.sp. (Trematoda: Echinostomatidae) in Natal, South Africa

Appleton¹,

Donnelly²,

Eriksson³

1983

South African Journal of Zoology

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Stages in the Development of Larval Echinostomes recovered from Schistosome Transmitting Molluscs in Central Africa

Cited by 14 publications

References 5 publications

Trematode–gastropod associations in nine non-lacustrine habitats in the Mwanza region of Tanzania

Trematode–gastropod associations in nine non-lacustrine habitats in the Mwanza region of Tanzania

Life-cycle, delimitation and redescription of Echinostoma revolutum (Froelich, 1802) (Trematoda: Echinostomatidae)

The life-cycle and seasonal abundance ofEchinoparyphium montgomeriana n.sp. (Trematoda: Echinostomatidae) in Natal, South Africa

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