文章基本信息

标题：A new species of Xenosaurus (Squamata: Xenosauridae) from the Sierra Gorda Biosphere Reserve of Querétaro, Mexico
本地全文：下载
作者：Adrián Nieto Montes de Oca ; Uri O. García Vázquez ; J. Jaime Jaime Zúñiga Vega 等
期刊名称：Revista Mexicana de Biodiversidad
印刷版ISSN：1870-3453
出版年度：2013
卷号：84
期号：2
出版社：Instituto de Biología
摘要：A new species of Xenosaurus from the Sierra Gorda Biosphere Reserve of northeastern Querétaro, Mexico, is described. The new species differs from all of the other described species of the genus by having usually 2 postrostral scales on each side of the midline (in 84.6% of the specimens, n= 26); largest supraoculars that are not, or only slightly, wider than long; postorbital and zygomatic ridges that are widely separated from each other by an intervening row of scales; labiomental rows that usually extend posteriorly from the second or third chinshield (in 92.3% of the specimens, n= 26); 23-26 lamellae under the fourth toe (x= 24.3, n= 25); a venter that is immaculate or with only diffuse, scattered dark specks on the sides, and a postorbital region rounded, lacking a canthus temporalis demarcated by enlarged or well-defined scales. The new species inhabits oak forest and a transitional zone between oak forest and subperennial tropical forest at approximately 1 100-1 400 m of elevation. The new species is morphologically most similar to X. platyceps from Tamaulipas, but does not appear to be its sister taxon.
关键词：Xenosaurus mendozai;Xenosaurus platyceps;descripción de especie;Sierra Madre Oriental;sistemática