TEIID LJZAEDS OF THE GENUS CNEMIDOPHORUS 219 



1S95, p. 122.— Cope, Anier. Nut, vol. 80, 1806. p. 1012.— Boulengeb, Zool. Rec. 

 for 1895, vol. 32, " Reptila," 189G, p. 19. — Belding, W. Amer. Sci., vol. 3, 

 1897, p. 97.— Cope, Ann. Kept. U. S. Nat. Mus. for 1898, 1900, p. 570.— Gadow, 

 rroc. Zool. Soc. London, 1906, p. 371.— Ditmars, Reptile Book, 1907, p. 186.— 

 Stejneger and Barbour, Check List N. Amer. Anipli. and Rept., 1917, p. 66. — 

 Van Denburgh and Sle\in, Proe. Calif. Acad. Sci., ser. 4, vol. 11, 1921, p. 62. — 

 Terrox, Mem. Soc. Cient. "Antonio Alzate," vol. 39, 1921, p. 164. — Van Den- 

 burgh, Occas. Pap Calif. Acad. Sci., vol. 10, 1922, p. 506. — Nelson, Mem. 

 National Acad. Sci., vol. 21, 1922, p. 114. — Schmidt, Bull. Amer. Mus. Hist., 

 vol. 46, 1922, p. 677. — Stejneger and Barbour. Check List N. A. Auiph. and 

 Rept., ed. 2, 1923, p. 72. 



Diagnosis. — This large and distinct species may be distinguished 

 by the following characteri.^tics : Frontoparietals 2; supraoculars 

 normalh^ 4; dorsal ground color rich chestnut brown; throat often 

 with brownish patches or spots; young usually with some bluish in 

 ventral coloration; back witli ?> unusually wide, irregular, longitu- 

 tlinal light lines; each side with a similar line in the young, usually 

 also in the adult ; size hirge. 



This handsome 5-striped lizard is perhaps the least tessellated form 

 among the members of the tessellatus group which sliow traces of 

 longitudinal arrangement in the dorsal color pattern. It is not 

 closely related to the rest, and is therefore not likely to be confused 

 with them. 



Desd^iqytion.- — Snout usually rather blunt ; nostril anterior to nasal 

 suture; anterior nasal usually not in contact with second upper 

 labial; supraoculars normally 4; supraocular granules variable in 

 l)osition; frontoparietals normally 2; parietals normally 3; anterior 

 gulars moderate to large and usually enlarged centrally; posterior 

 gulars small, uniform; mesoptychials variable, usually in 4-6 rows. 



Body large, heavy; ventral plates in 8 longitudinal and 32-38 

 transverse rows; dorsal granules small to moderate, variable; limbs 

 Avell developed, strong; brachials 4-9; antebrachials 3-6; brachials 

 and antebrachials usually continuous at a point of contact : postante- 

 brachium with small or slightly enlarged granules; femorals 5-9; 

 tibials 3-6; femoral pores 19-27; tail elongate, tapering; caudals 

 large, oblique, and with rather strong lateral longitudinal keels. 



Coloration distinctive; ground color of throat variable, usually 

 white or yellowish, and with bluish, black, slate or brownish spots 

 or i)atches; chest and abdomen usually w^hite or yellowish, but with 

 spots or lines of bluish, black or brown; under surfaces of tail and 

 feet usually white and not with red or pinkish as in rubidiis; lateral 

 and dorsal part of caudal rings often marked with alternate light 

 and dark transverse areas; femora spotted or reticulated; dorsal 

 ground color usually brownish or rich chestnut; back and sides 5- 

 striped, the loAver pair lateral in position; stripes unusually wide, 

 and irregular or wavy in outline ; field spots more or less united with 



