B R E V I O R A MuseiLioi of Comparative Zoology us ISSN 0006-9698 Cambridge, Mass. 2 September 1988 Number 490 NEW OR PROBLEMATIC ANOLIS FROM COLOMBIA. VI. TWO FUSCOAURATOID ANOLES FROM THE PACIFIC LOWLANDS, A. MACULIVENTRIS BOULENGER, 1898 AND A. MEDEMI, A NEW SPECIES FROM GORGONA ISLAND Stephen C. Ayala' and Ernest E. Williams^ Abstract. Anolis maculivenths Boulenger, 1898, the widespread Pacific \ovj-\and fuscoaurat us group anole of northwestern South America, is redescribed on the basis of a series of specimens from the region of the type locahty in northern Ecuador. A second fuscoauratoid species, Anolis medemi, new species, is described from Gorgona Island, 56 km west of the Pacific Coast in Colombia. INTRODUCTION Anolis fuscoauratus-Wkt lizards are widespread and often com-mon at many sites in the Andean cordilleras and along the Pacific lowlands of northwestern South America. Williams (1976) rec-ognized and briefly defined a fuscoauratoid complex as part of his key to the species groups of South American anoles. Never-theless, accurate identification of individual specimens has often proved difficult: scale counts are very similar, distinctive colors fade soon after death, and only short descriptions of the type specimens of each species have been available for reference. Williams (1976) listed five species in the fuscoauratoid group: A. antonii Boulenger, 1908, A. fuscoauratus Dorbigny, in Dumeril and Bibron, 1837, A. maculiventris Boulenger, 1898, A. ortoni ' 929 Pepperwood Lane, Petaluma, California 94952. ^ Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138. LIBRARY OCT 3 1 1988 f UAO\/ADnk
New or problematic Anolis from Colombia. VI. Two fuscoauratoid anoles from the Pacific lowlands, A. maculiventris Boulenger, 1898 and A. medemi, a new species from Gorgona Island
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