Herp. Q^ , V MCZ 666 > LIBRARY .L293 P37 2001 Scientific Papers NOV 5 2001 HARVARD UNiV£RolTY Natural History Museum The University of Kansas -I X (D I-Z 3 12 October 2001 Number 23:1-9 A New Lizard Species in the Genus Xantusia from Arizona By < z Theodore J. Papenfuss^ J. Robert Macey^ and James A. Schulte II 3 — a->3 .y ^Museum of Vertebrate Zoology, University of California, Berkeley, California 94720, USA
[email protected]/.edii ^ I -^ Department of Comparative Genomics, Joint Genome Institute and Lawrence Berkeley National Laboratory, 2800 Mitchell Drive, Walnut Creek, California 94598-1631, USA.
[email protected] ^ Department of Biology, Box 1137, Washington University, St. Louis, Missouri 63130, USA
[email protected] ■=."6 r= o g I t <i; c3 .a ^a .t-r: CONTENTS ABSTRACT 1 =^ 1 INTRODUCTION 2 Acknowledgments 2 = u => MATERIALS AND METHODS 2 l^fS DESCRIPTION OF NEW SPECIES 4 <2 ! E MOLECULAR VARIATION AMONG XANTUSIA 7 LITERATURE CITED 9 3 > 5 = 1) o o. — aj ABSTRACT Three species of lizards in the genus Xantusia occur in Arizona: X. vigilis, X. arizonae and a new species described here, X. bezyi. Previous workers have suggested that only a single species of Xa7itusia is found in Arizona with some populations living in yucca-type plants and others specializ-ing in granite rock habitats. Recognition of the three species is based on previously reported allozyme data, new mitochondrial DNA sequence data (1716 aligned sites, 59 parsimony informative), and morphological differences. Phylogenetic analysis of mitochondrial DNA sequences among the three species of Xantusia that occur in Arizona indicate that X. arizonae and X. vigilis are sister taxa with the exclusion of X. bezyi. Genetic differentiation between mitochondrial DNA sequences suggests that species in Arizona are 5-6 million years old. Key Words: Reptilia; Squamata; Xantusiidae; Xantusia; new species; systematics; phylogenetics; mito-chondrial DNA; Arizona. © Natural History Museum, The University of Kansas ISSN No. 1094-0782
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