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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 94, No. 6, 1999, pp. 743-750
Bioline Code: oc99223
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 94, No. 6, 1999, pp. 743-750

 en Studies on Cercariae from Kuwait Bay. XI. Description and Surface Topography of Cercaria kuwaitae XI sp.n. (Digenea: Echinostomatidae)
Abdul-Salam, J. & Sreelatha, B.S.

Abstract

A new echinostome cercaria, Cercaria kuwaitae XI sp.n., from the prosobranch gastropod Cerithidea cingulata (Gmelin) from Kuwait Bay is described. The new cercaria is characterized by 23 collar spines and primary excretory tubules with distinct diverticula. The cercaria encysts in the snail host and is similar to those of Acanthoparyphium sp. The surface topography of the redia, cercaria and metacercarial cyst wall is studied by scanning electron microscopy. This is the first echinostome cercaria to be recorded in a gastropod from the Arabian Gulf region.

Keywords
Digenea - Cercaria kuwaitae XI sp.n. - Acanthoparyphium sp. - ultrastructure - Cerithidea cingulata - Kuwait Bay

 
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