Endemic species of Bulinus (Mollusca: Planorbidae) in Lake Malawi (= Lake Nyasa)



Bulinus nyassanus and B. succinoides are both endemic to Lake Malawi and for many years were known only from their shells. Recent collections of living material have made possible a study of the anatomy of both species and the application of biochemical and immunological techniques have indicated their affinities within Bulinus. Some interesting aspects of their ecology have also been revealed.