Seib, R. 1985 Santa Rosalia to Isla San Marcos, Baja California Sur, Mexico 5 May We camped under moonlight. I stayed awake for an hour and watched the clouds move now and then below the moon. It's really quite beautiful here at this time of year. The temperature is perfect and the humidity is low. Isla San Marcos to La Paz, Baja California Sur, Mexico 6 May I woke up late, at 7:30, with the sun already over the canyon and shining on me through thin clouds. Doris had risen at 5:45, 15 min after daybreak, and photographed. I spent the morning walking through the canyon. I collected 2 Urosaurus, but no Callisauros. I saw no Sceloporus this morning. I saw two new lizards: Cnemidophorus tigris & C. hyperythrus, and collected two of the former. The boat picked us up at 11:00. The total species list for my visit is: Coleonyx smitaki Coleonyx variegatus Phyllodactylus) Callisaurus draconoides Sceloporus magister Urosaurus nigricaudus Cnemidophorus hyperythrus Cnemidophorus tigris Lichanura trivirgata Elaphe rosaliae (Crotalus ruber