basis of recordTurner, R. D. (1960). Land shells of Navassa Island, West Indies. <em>Bulletin of the Museum of Comparative Zoology.</em> 122(5): 233-244., available online athttps://www.biodiversitylibrary.org/page/4247594 page(s): 237 [details]
Present Inaccurate Introduced: alien Containing type locality