After discussing the shifting of species and selection of genotypes of the bryozoan genera Lepralia, Membraniporella, Smittia, and Smittina, reaches the conclusion that Discopora trispinosa is now the genotype of Lepralia, that Smittia and Smittina are synonyms of Lepralia, and that Berenicea nitida is still the genotype of Membraniporella.

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