. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 248 REPORT OF NATIONAL MUSEUM, 1898. luterorbitiil scales iu three or four rows (rarely in two rows). Other scales on head above small. Infraorbital chain composed of a single large plate, with one or two small ones at each end. Ifnder surface of feet with small and generally almost smooth scales. Scales ougular fold as large as those between the fore legs. General color brownish yellow, with large, dark, rounded spots, the intervals usuall
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 248 REPORT OF NATIONAL MUSEUM, 1898. luterorbitiil scales iu three or four rows (rarely in two rows). Other scales on head above small. Infraorbital chain composed of a single large plate, with one or two small ones at each end. Ifnder surface of feet with small and generally almost smooth scales. Scales ougular fold as large as those between the fore legs. General color brownish yellow, with large, dark, rounded spots, the intervals usually sprinkled or dotted with red (whitish in spirits); the tail and generally the back with a succession of transverse light bands. The chain broadly streaked longtudiually with bluish, without any trace of reticulation. The light dots sometimes wanting, and, to a greater or less extent, the dark spots; the ground color then being dark , (^- Fij;. 19. CUOTAPHYTUS OOLLARIS SAY. X 3. Lake Valley, Now Mexico. Collection of E. U. Cnp,'. CROTAPHYTUS COLLARIS Say. OrotaphytHS collaris Holbrook, N. Amcr. Herpt., II, 1842, p. 79, pi. x.—Baird and GiRARD in Marcy's Red Eiver, 1813, p. 235.—Hallowell, Proc. Acad, Nat. So. Phila., VIII, October, 1856, p. 238; December, 1856, p. 309.—Wied, Nov. Act. Ac. , XXXII, 1865, p. 58.—Baird, Rep. U. S. Expl. Surv., XIII, Pt. 3, 1857, p. 17, pi. XXIV, fig. 1; U. S. and Mex. Bound. Surv., 1859, p. 6.—Cope, Proc. Acad. Nat. Sci. Phila., 1866, p. 302.—Bocourt, Miss. So. Mex., Rept., 1874, p. 154, pi. xvii bis, ligs. 5, 6.—Boulenger, Cat. Liz. Brit. Mus., 2<1 ed., II, 1885, p. 203. Agama collaris Say, Long's Expd. Rocky Mts., II, 1823, p. 252.—Harlan, Med. Phys. Res., 1835, p. 142, pi., fig. 4. HosauruH collaris A. DUiMKKiL, Arch. Mus., YIII, 1856, p. 533, note 1. Head very broad, its widtli fully equal to the distance from snout to ear. Supraorbital plates abruptly smaller than those on the middle and front of hea
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