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Freshwater snails of São Tomé, with special reference to Bulinus forskalii (Ehrenberg), host of Schistosoma intercalatum by D. S. Brown is a Environmental Science article available to read on EtoBox.

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Sao Tome Island has 3 known taxa of freshwater gastropod, here identified to species for the first time; Neritina afra Sowerby, Ferrissia eburnensis Binder and a distinctive form of Bulinus forskalii (Ehrenberg). The Bulinus acts as intermediate host for the parasite Schistosoma intercalatum Fisher, the cause of human schistosomiasis in foci of infection detected in recent years on S9o Tome. A morphological characterization of this snail is presented, in respect of the shell, radula and copulatory organ. It is compared with B. forskalii populations sampled on the African mainland (Nigeria, Cameroon, Gabon and Angola) and with related taxa. Despite differences in the shell from the commonly found form of B. forskalii it seems appropriate to identify the Sao Tome population as an extreme conchological variant of this taxon.

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Author

D. S. Brown

Publisher

Springer; Springer-Verlag; Springer (Kluwer Academic Publishers); Kluwer Academic Publishers; Springer Science and Business Media LLC (ISSN 1573-5141)

Published

1991

Language

EN

Field

Environmental Science (Physical Sciences)