. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 254 REPORT OF NATIONAL MUSEUM, 1898. The Crotaphytus collaris ranges from southern Missouri throuj^h ceu- tral Kansas to northern Nevada as its northern hmit; to Texas, as far as the mouth of the Rio Grande; to the city of Chihuahua and to south- eastern California, to the Sierra Nevada, beyond which it has not yet been found. Stejneger,^ remarks as to its distribution in this direc- tion: In spite of tbe fact that this species, in certain
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 254 REPORT OF NATIONAL MUSEUM, 1898. The Crotaphytus collaris ranges from southern Missouri throuj^h ceu- tral Kansas to northern Nevada as its northern hmit; to Texas, as far as the mouth of the Rio Grande; to the city of Chihuahua and to south- eastern California, to the Sierra Nevada, beyond which it has not yet been found. Stejneger,^ remarks as to its distribution in this direc- tion: In spite of tbe fact that this species, in certain localities at least, ascends the mountains as high as 5,600 feet, it does not occur anywhere within the interior valley of California, nor does it pass heyond the San Bernardino range; in fjict, it does not seem to reach the coast anywhere; it is evidently an inland desert form. CROTAPHYTUS RETICULATUS Baird. Crotaphytus reiiculatus Baihd, Proc. Acad. Nat. Sci. Phila., 1858, j). GER, Cat. Liz. Brit. Mus., II, 1885, p. 203. -BOULKN-. Fig. 20. Crotaphytus keticulatus Baird. X 2. Ringgold Barracks, Texas. Cat. No. 2692, External characters those of G. collaris as to width of head, large size of plates, division of suborbitals into a series of 0 or 8 nearly e(]|ual plates. The scales on the chin and throat, however, are much smaller, those on the gular fold scarcely imbricated, and considerably less than those between the fore legs, instead of the same size, as in C. collaris and icislizemi. Scales on the inferior surface of legs carinated; mucronate rather smaller than in C. collaris. Scales of the head, and especially those on the border of the auditory meatus, less tubercular than in C. collaris; hence no serrate on border. General color in spirits, brownish gray; entire upj)er and outer sur- faces of head, body, limbs, and tail covered by a network of light ash. North .American-Fauna, Xo. 7, 1893, p. Please note that these images are extracted from scanned
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