Bahalana geracei n. gen., n. sp., a troglobitic marine cirolanid isopod from Lighthouse Cave, San Salvador Island, Bahamas

Bahalana geracei is described from Lighthouse Cave on San Salvador Island, Bahamas. It is the first subterranean cirolanid from the Bahamas, and the first to be found in waters of full marine salinity. Its most distinguishing characteristic is that its first three pairs of pereiopods are prehensile and extremely long. Natural history observations are also reported.