Table S1. Localities from which Cremnoconchus species have been recorded (in literature, as represented by museum collections, and personal collection by authors). Where historic collections are from sites revisited by the authors, the former are not listed (e.g. Matheran, Khandala, Mahabaleshwar). Interpretation of historic records and labels is not always straightforward and is justified here. Dates of collection of historic material are not known, but the material in the Blanford Collection must predate his publications (Blanford 1863, 1870, 1881) and the Evezard Collection was made in the late nineteenth century. Localities arranged by latitude from north to south.

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