Abstract
INTRODUCTION: In Para State, Northern Region of Brazil, there are reports of the occurrence of Biomphalaria glabrata, Biomphalaria straminea, Biomphalaria schrammi, and Biomphalaria kuhniana. OBJECTIVE: To report the first existence of Biomphalaria occidentalis in Para State. MATERIALS AND METHODS: Five mollusks were collected, examined for the presence of Schistosoma mansoni cercariae, and morphological and molecular taxonomies were performed. RESULTS: No specimens parasitized by trematode larvae were detected. Biomphalaria occidentalis was identified, being the first record in Para State. CONCLUSION: The result obtained contributed to improve the knowledge about the dispersion and diversity of the Biomphalariamollusks in Amazon Region.
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