Seib, R. 1985 Napolé to Isla San Marcos, Baja California Sur, México 16 May the sand at 0030. Walked until 0230 seeing nothing else. Colonyx variegatus and Phyllodactylus were abundant, but we did not collect any more. Total observations: (C. scutatus; (4) Lichanura (2) (C. variegatus Eriolophas (3) Phyllodactylus Phyllorhynchus (1) Urosaurus C. rober (2) (alizaeus (C. tigris I saw 2 C. scutatus which escaped, one in a side canyon near the beach. Doris saw two small snakes which escaped, one almost certainly an Eriolophas. We have now collected 5 snake species on the island (including Elaphe). Isla San Marcos to Santa Rosaĺa, and return Baja California Sur, México 17 May Left at 900. I hardly slept at all, very sore all night. Went to hotel El Morro and slept until 1600. Went into Santa Rosaĺa to eat and purchase lantern gas. We finally found the latter at the furniture store which sells lanterns. Arrived San Bruno at 1800, having checked out of El Morro. Arrived island in time to view an intense