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special attraction to a very remarkable blind cave salamander discovered by Mr. F. A. Sampson in the Rock House Cave, Mo. and described by me as [[underlined]] Typhlotriton spetaeus [[/underlined]]. It is related to [[underlined]] Desmognathus [[/underlined]], but its eyes by disuse have become nonfunctional; the eyelids closed over them, grew together, and now there is only a shallow furrow and a dark spot left to designate externally the place of the eye. The [[underlined]] Proteus [[/underlined]], from the grottos in Kärnthen, Austria, is the only other batrachian hitherto known to be blind in the same way, but it belongs to a different order, and [[underlined]] Typhlotriton [[/underlined]] is so far the only