Bulinus

A genus and subgenus of freshwater snails in the family Planorbidae (subfamily Bulininae), which includes many species that are intermediate hosts of the human blood fluke, Schistosoma haematobium, in Africa and the Middle East; divided into two subgenera, Physopsis and B., the former being responsible for transmission of S. haematobium south of the Sahara, the latter responsible for transmission of this bladder blood fluke in north Africa and the Middle East. Important species include B. truncatus and B. forskalii, hosts for human and animal schistosomes and several domestic animal amphistome flukes.

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Bu·li·nus (bu-liґnəs) a genus of snails of the family Planorbidae. Several species are intermediate hosts of Schistosoma haematobium and Opisthorchis.