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This paper describes a number of new taxa in the Arcidae, Philobryidae, Mytilidae, Galeommatidae, Kelliidae, Cyamiidae, Carditidae, Thraciidae and Clavagellidae. A further 17 species are included as new to the malacofauna of Rodrigues. Most of the species included came from cryptic habitats, of which the most interesting are apparently cavernicolous and similar to those described from southern Japan. Other species were described from crevice or algal turf communities. The most understudied group is the Galeommatoidea with four species described as new and a further five with as yet unresolved taxonomy. [ABSTRACT FROM AUTHOR]

This checklist illustrates and comments on the 109 species of marine bivalve currently known from Rodrigues. The fauna appears impoverished when compared to those of Mauritius, Reunion and Seychelles. Low habitat diversity is postulated as the cause of impoverishment rather than the relatively young geological age of Rodrigues. [ABSTRACT FROM AUTHOR]