Abstract

Abstract A new species of fortuyniid mite, Alismobates keniaensis sp. nov., from the coast of Kenya is described and an assessment of the biogeographic distribution pattern of marine associated ameronothroid mites occurring on African coasts is provided. Alismobates keniaensis sp. nov. represents the first record of the genus Alismobates from Africa and this species can be easily distinguished from its congeners by the position of notogastral seta C1 on the lenticulus, fifteen pairs of notogastral setae, relatively long interlamellar setae and drop-shaped granular cavities next to acetabula IV. A further intertidal species, the selenoribatid Schusteria melanomerus, was also found on Kenyan shores indicating that this species shows a continuous distribution along the eastern African coast from Kenya to Mozambique. Basically, the subtropical and tropical Fortuyniidae and Selenoribatidae are concentrated along the south-eastern shoreline of Africa whereas the cold-adapted Ameronothridae mainly occur at the s...

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