B R E V I R"A _, FFR ■•! in.n.n Museum of Comparative Zoology us ISSN 0006-9698 HARVARH Cambridge, Mass. 31 January 1992 j^umber 495*^ NEW OR PROBLEMATIC ANOLIS FROM COLOMBIA. VII. ANOLIS LAMARI, A NEW ANOLE FROM THE CORDILLERA ORIENTAL OF COLOMBIA, WITH A DISCUSSION OF TIGRINUS AND PUNCTATUS SPECIES GROUP BOUNDARIES Ernest E. Williams • Abstract. A new species, Anolis lamari, is described from the eastern slopes of the Cordillera Oriental of Colombia. It is compared with the species previously assigned to the tigrinus group. The characters separating the tigrinus and punctatus species groups are reassessed. A plea is made for the temporary use of informal groupings— recognized as such— whenever sufficient grounds for the recognition of formal taxa do not exist. INTRODUCTION A small anole from the eastern slopes of the Cordillera Oriental of Colombia is recognized as another new species apparently allied to the tigrinus species group. It is named Anolis lamari after its discoverer, W. W. Lamar. DESCRIPTION Anolis lamari, new species Figures 1-4 Holotype. ICN 6762 (Instituto de Ciencias Naturales, Universi-dad Nacional de Colombia, Bogota) (formerly WWL 1576). Type Locality. Portachuelo, about 2 miles (by air) north of Manzanares, a police inspection station in the Municipio de Aca-Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138.