CROCODILIANS, LIZARDS, AND SNAKES. 



593 



tbe orbit aud passes over tlie tympanum; the next begins above the 

 anterior border of the orbit aud marlcs the external borders of the supra- 

 orbital plates. The next issues from a parietal plate. Anteriorly the 

 black interspaces have a few small spots; posteriorly they become 

 undulate through lateral emarginatious, and more posteriorly the first 

 and second stripes are broken up into quadrate spots, the third remain- 

 ing unbroken. The hind legs are very indistinctly marbled on an olive- 

 gray ground. The fore legs are coarsely reticulated with black on an 

 olive ground. The lateral dark stripes extend to the orbit, and there 

 is a blackish shade on the side of the muzzle, just below the canthus 

 rostralis. Lower surfaces everywhere yellowish unspotted, except a 

 few black specks on the inferior labials and sides of the gular region. 

 Tail olive above, yellowish below. 



This species belongs to the C. sexUneatus series, as indicated by the 

 scales of its collar, but it has the coarse scales of the G. te.sselhitus. Its 

 six infralabial scales are found only in the former series. Its colora- 

 tion resembles in some degree the stage of the C. tesseUattis tessellatus, 

 called by Baird and Girard C. tigris, but it has seven stripes instead of 

 four, aud the lateral stripes are broken up aud not the median, as is 

 the case in the latter. It also differs from the latter in the marking of 

 the fore leg and nearly uniform coloration of the hiud leg, the reverse 

 being the case in the C. tessellatus. The striping of the head is also not 

 seen in the latter. The head is also narrower in proportion to its length. 



This, perhaps the handsomest species of the genus, is represented in 

 the collection by au adult female only. 



CnemidophovHa scptemvittatus Cope. 



CNEMIDOPHORUS SEXLINEATUS Linnaeus. 



Cnemidophorus sexUneatus Gray, Cat. Liz. Brit. Mus., 1845, p. 2L — DrMi^RiL aurl 

 BiHRON, Erp. Gen., Y,839, p. 13L— DcMEKiL, Cat.M(<th. Kept., 18.5L p. 17(;.— 

 Cope, Check-list N. Amer. Batr. Kept., 1875; Trans. Anier. Phil. Soc, 1892, 

 p. 42, pi. IX, fig. 7.— Bocouirr, Miss. Sci. INIex., Kept., 1874, p. 273, pi. xx C, 

 fig. 11.— BOUI.ENGER, Cat. Liz. Brit. Mus., II, 1885, p. 364. 



Laceria sexUncata Linn.eus, Syst. Nat., 12th ed., I, 1766, p. 364. — Gmelix, Syst. 

 Nat., 1788, p. 1074.^Latreille, Hist. Nat. Kept., I, 1801, p. 242.— Daudin, 

 Hist. Kept., Ill, 1802-1803, p. 183.— Harlan, Journ. Acad. Nat. Sci. Phihi., VI, 

 1827, p. 18. 



Ameiva scxlineata Holbrook, N. Araer. Herpt., 1st ed., I, 1838, p. 63, pi. vi ; 2d ed., 

 1842, p. 109, pi. XV. 



Cuem'idophorus sexUneatus Dumeril and Bihron, Erp. G6n., V, 1839, p. 131. — Aug. 

 DuMifiRiL, Cat. Col. Kept., 1, 1851, p. 116. 



Scales of collar large, in few rows, the largest forming the lower. 

 Scales of the upper surfaces minute, not larger than .33 mm. in diame- 

 NAT MUS 98 38 



