THE SYSTEM ATICS OF CROTAPHYTUS WISLIZENI, THE LEOPARD LI/ARDS (SAURIA: IGUANIDAE). PARI' II. A REVIEW OF THE STATUS OF THE BAJA CALIFORNIA PENINSULAR POPULATIONS AND A DESCRIPTION OF A NEW SUBSPECIES FROM CEDROS ISLAND' Benjamin H. Banta-and Wilmer W. Tanner"-This is the second of a planned series of studies on the systematics of the leopard lizards. Crotaphytus wislizeni. We have previously described the populations inhabiting the Upper Colorado River Basin of southeastern Utah and adjacent states, and the population of Crotaphytus wislizeni wislizeni in Arizona. New Mexico. Texas, and northern Mexico (Tanner and Banta, 1963). A study of the Great Basin populations has been underway for some time, and will appear as Part III. For the loan of, or opportunity to examine specimens under their care which were essential for use in this study, the authors wish to thank Dr. Richard Etheridge, and Mr. Allan J. Sloan, San Diego Natural History Museum (SDNHM); Dr. Robert Inger. Chicago Natural History Museum (CNHM); Dr. James Peters. United States National Museum (USNM); Drs. Alan E. Leviton and Steven C. Anderson, California .Academy of Sciences (CAS); Dr. Richard B. Loomis. California State College at Long Beach (LBSC); Dr. George S. Myers. Stanford University (SU); Dr. Kenneth S. Norris, Univer-sity of California at Los Angeles (UCLA); Dr. Robert C. Stebbins. University of California at Berkeley (MVZ); Dr. Ernest E. Wil-liams, Harvard University (MCZ); Dr. Richard G. Zweifel, Ameri-can Museum of Natural History (AMNH); Dr. T. Paul Maslin, University of Colorado Museum (CU) ; and Brigham Young Uni-versity (BYU). THE STATUS OF THE BAJA CALIFORNIA LEOPARD LIZARD POPULATIONS Leopard lizards from the southern Baja California peninsula were described as Crotaphytus copeii by Yarrow in 1882. based upon a specimen obtained by Lyman Belding at I-,a Paz, Lower California, in 1882. Stejneger and Barbour (1917) recognized C. copeii as did Dickerson (1917). However. Van Denburgh (1922) was "unable to find any differences between specimens from Cerros ( = Cedros) and Magdalena Islands, I^wer California (C. copeii). and those from the United States, either in color or proportions." Schmidt (1922) also argued against recognizing C. copeii stating that. "The 1. This work was partially supported in its initial stages by a grant from the Jolinson Fund of the Anieriran Philosophiol Society. 2. Michigan State University, East f^nsing, Michigan. 3. Brigham Young University, Provo, Utah. 183
The systematics of Crotaphytus wislizeni, the leopard lizards (Sauria: Iguanidae). Part II. A review of the status of the Baja California Peninsular populations and a description of a new subspecies from Cedros Island
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