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In 934 Bonet listed two troglophile species of the genus Pseudosinella, P. decipiens and P. sexoculata, from caves of the United States. In 1949 De!amare described two new troglobite species, P. hirsuta and P. spinosa, and placed them in a new genus Troglosinella. The present work is the result of the examination of more extensive collections from caves in the United States and has resulted in the addition of tour more troglophile forms and the discovery of five new troglobite species. The workdoi:10.1155/1960/25063 fatcat:gxc4xjxstnhn5lrhqankgll34i