368 REPORT OF NATIONAL MUSEUM, 1898. 



SCELOPORUS UNDULATUS Latreille. 



Scdoporus iindulatus Wiegmann, Isis, 1828, p. 369; Herpet. Mcs., 1, 1834, p. 48.— 



Fitzin(;ku, Syst. Kept., 1843, p. 75.— GiKAiii), Herpet. U. S. Expl. Ex., 1858, 



p. 379, pi. XIX, figs. 15-21. — BocouiJT, Miss. Sci. Mexique, Reptiles, 1874, p. 



195, pi. XVIII bis, fig. 11.— Coi'K, Proc. Amer. I'hil. Soc, 1885, p. 395.— Bou- 



LENGKR, Cat. Liz. Brit. Mus. II, 1885, p. 227. 

 Lacerta imdiilata Bosc, manuscript. 

 Siellio undiilatus Latreille, Hist. Kept., II, 1802, p. 40. 

 Agama uyidulata Daudin, Hist , Kept., Ill, 1805, j). 384. — Harlan, Journ. Acad. 



Nat. Sci. Phila., VI, 1829, p. 13. 

 Lacerta fativiata Green, Journ. Acad. Nat. Sci. Pliila., I, 1818, ji. 349. (Female.) 

 Lacerta hyacinthina Green, Journ. Acad. Nat. Sci. Phila., I, 1818, p. 349. 



(Male.) 

 Uromastix unditlatns Merricm, Tent. Syst. Ampb., 1820, p. 57. 

 Tropidolcpis nvdiilntiiH Cuvier, Kcgne An., 2d ed., II, 1829, p. 38. — Gray, Syn. 



Ix'ept. Griff. Cuv., IX, 1831, p. 43; Cat. Liz. Brit. Mus., 1845, p. 208.— Dumkril 



and BiBRON, Erp. Gen., IX, 1837, p. 298.— Holrrook, N. Amer. Herpt., Ist 



ed., Ill, 1838, p. 51, pi. viii; 2d ed., II, 1847, p. 73, pi. ix. — Aug. Dumeril, 



Cat. Mdth. Coll. Kept. Mns. Hist. Nat., 1851, p. 76. 

 Sceloportis occidentalis Baird and Girard, Proc. Acad. Nat. Sci. Pliila., VI, Octo- 



lier, 1852, p. 175; California. — Gii:ari), Herpet. U. S. Expl. Exped., 1858, p. 



383, pi. XIX, iigs. 8-14. 

 Sceloporus frontalis Baird and Girard, I'roc. A(;ad. Nat. Sci. Pbila.,VI, October, 



1852, p. 175, Oregon. — Girard, Herpet. II. S. Expl. Exped., 1858, p. 384, pi. 



XIX, figs. 1-7. 

 Sceloporns undidatiis thai/crii Core, ISuli. U. S. Nat. Mus., No. 1, 1875, j). 49; not 



S. thayerii of liaird and Girard. 

 ScetoporuH lotiyipes Baird, Proc. Acad. Nat. Sci. Pbila., 1858, p. 254. 

 Sceloporus eJont/atus Stejneger, N. Amer. Fauna, No. 3, 1890, p. 111. 



Cephalic plates smooth or longitudinally rugose, especially ante- 

 riorly, and laterally. Supraorbital region with one crescentic series of 

 five or six large, transverse plates, embracing a short series of three or 

 four additional outer and inner series of small plates in its concavity. 

 Two frontal plates, one before the other, the anterior undivided, usually 

 with a third anterior and adjacent one so arranged as to be surrounded 

 by four plates." Free part of longest hind toe equal to the length of 

 cephalic jdates. Scales of back and rump about eijual, smaller than 

 those near base of tail. Lateral scales smaller than dorsal. Dorsal 

 scales angular i^ointed, well carinated, with conspicuous spines, and the 

 lateral denticulations indistinct. The belly scales smooth and strongly 

 emarginated. The scales or inside of tibia distally and behind anus 

 decidedly carinated. Femoral pores about fourteen. There are about 

 forty-one oblicjue rows of scales from head to tail, about twenty-three 

 from cervical fold. 



Color above, brownish olive to green. An indistinct or obsolete light 

 stripe on each side, separated above by about 10 rows of scales; on 

 each side a series of narrow, undulating Vs, the angle anterior, and in the 

 light line; the inner legs of opposite marks more or less approximated. 

 Male with jjosterior half (or more) of the chin and thence on each side 



