. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 570 REPORT OF NATIONAL MUSEUM, 1898. The large nuuiber of specimens of C. tessellatus and G. gularis in the U. S. JS^ational Museum collection show that the breaking up of the striped coloration appears first at the posterior part of the dorsal i egion (that is, the sacral and lumbar). The confluence of the spots appears there first; and finally { semi/asciatus), where the color mark- ings disappear, leaving a uniform hue, this als
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 570 REPORT OF NATIONAL MUSEUM, 1898. The large nuuiber of specimens of C. tessellatus and G. gularis in the U. S. JS^ational Museum collection show that the breaking up of the striped coloration appears first at the posterior part of the dorsal i egion (that is, the sacral and lumbar). The confluence of the spots appears there first; and finally { semi/asciatus), where the color mark- ings disappear, leaving a uniform hue, this also api)ears first at the posterior i)art of the body. In the C. tessellatus ruMdus the dark spots disappear first on the anterior regions. The species of Cnemidophorus inhabit dry open ground where they can observe their insect prey and watch their enemies. From the lat- ter they escape by the extreme rapidity of their movements, which renders it difiicult to follow them with the eye, to which they appear as a streak flying over the ground. For this reason they are popularly known as " ; They are nevertheless frequently caught and eaten by snakes. Of the species enumerated in the synopsis above given, eight are not found in the Nearctic realm. Thus €. guttatiis and C. dcppei are restricted to the Central American district, and C. cspeutii to certain islands of the eastern coast of Central America. C. murinus and G. nigricolor belong to the northern parts of South America, and G. ocelli- fer, G. Incertoides, and G. lonfjicauda to the southern parts of that conti- nent. G. leumiscatuH inhabits tropical South America east of the Andes. CNEMIDOPHORUS MAXIMUS Cope. Cnemidophorus maximiis Cope, Proc. Acad. Nat. Sci. Phila., 1863, p. 104; Trans. Amer. Phil. Soc, 1892, pp. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectl
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