Procambarus niveus is a small, freshwater crayfish endemic to Cuba. It is a cave-dwelling species known from only one cave, Cuevas de Santo Tomas, in the Sierra de los Organos mountains, Pinar del Río Province. References Cambaridae Cave crayfish Freshwater crustaceans of North America Crustaceans described in 1964 Endemic fauna of Cuba Taxa named by Horton H. Hobbs Jr.