O riginally named "Guanahani" by the Lucayan Indians, who were the first humans to settle the island, San Salvador is one of 700 islands that make up the Bahamian Archipelago (Gerace et al. 1998). Located at 24°3'N latitude and 74°30'W longitude, it is 640 km ESE of Miami, Florida. Temperatures range from 17-27 °C in the winter and 22-32 °C in the summer. Most of the island's mean annual rainfall of 100 cm falls during the May-November rainy season, with about one-fourth of the total associated with the annual hurricane season.One-third of the island's total surface area of 92.9 km 2 is comprised of a network of brackish (often hypersaline) inland lakes. Like the other Bahamian islands, San Salvador is a low carbonate island. The highest point is 37.5 m above sea level (Shaklee 1994). Soils are generally shallow, poorly developed, and retain little water. Vegetation is mainly "scrub," with most (~60%) plants of Caribbean origin, ~30% exotic Florida imports, and 6-8% endemics (Smith 1993).Christopher Columbus probably first made landfall on San Salvador in Long Bay on 12 October 1492 (Gerace et al. 1998). The island, like most of the Bahamas, was completely depopulated by 1513 when Ponce de Leon passed through on his way to Florida. The British declared the REPTILES OF SAN SALVADOR ISLAND San Salvador, Bahamas, showing the inland system of lakes (dark blue), some associated wetlands (green), and a tidal creek (Pigeon Creek; light blue). Some sediment deposits are shown as wetlands. Labeled cays have supported San Salvador Rock Iguana (Cyclura rileyi rileyi) populations in recent years, although those on Barn Cay (1970s) and High and Gaulin cays (1990s) have been extirpated, and small populations have been introduced to the Club Med Resort on the main island and onto Cut Cay. Adapted from Robinson and Davis (1999).The Dixon Hill lighthouse is situated on one of the higher elevations on San Salvador. The top of the lighthouse provides a view of the entire island.