104 CALIFORNIA ACADEMY OF SCIENCES. 



Elgaria (jrandls, Baird & Girard, Proc. Ac. Nat. Sci. Phila., VI, 



1S52, p. 176 (type locality Oregon); Girard, U. S. Explor. 



Exped., Hei-p., p. 212, pi. XXII, figs. 1-8. 

 Oerrhonotus muUicar hiatus, Yarrow, Bull. U. S. Nat. Mus., No. 24, 



1882, p. 47 (part); Cope, Proc. Ac. Nat. Sci. Phila., 1883, pp. 



29, 32. 

 Oerrhonotus cmruleus, Boulenger, Cat. Liz. Brit. Mus., II, 1885, 



p. 273 (part). 

 Oerrhonotus scincicauda, Stejneger, N. A. Fauna, No. 7, 1893, 



p. 195. 



Description. — Body long and rather slender, with 

 short limbs and very long tail. Head pointed, with 

 flattened top and nearly vertical sides; its temporal 

 regions often greatly swollen in old specimens. Rostral 

 plate rounded in upper outline. Behind it, on top of 

 the head, a pair of small internasals, a pair of small 

 frontonasals (sometimes absent), a very large azygous 

 prefrontal, a pair of large prefrontals, a long frontal, a 

 pair of frontoparietals, two parietals separated by an 

 interparietal, a pair of occipitals, and a (usually) single 

 interoccipital. Two series (of 5 & 3) supraoculars and 

 a series of small superciliaries. Upper temporal scales 

 usually keeled, but lower two or three series smooth. 

 Upper labials much larger than lower. Below latter two 

 series of large sublabial plates, lower larger. Gular 

 scales smooth and imbricate. Scales on upper surfaces 

 and sides of neck, body, and tail large, rhomboidal, 

 slightly oblique, strongly keeled, strengthened with 

 bony plates, and arranged in both transverse and longi- 

 tudinal series. Number of longitudinal dorsal series on 

 body fourteen (rarely 12| or 14|). Number of trans- 

 verse series between interoccipital plate and backs of 

 thighs varying from forty-one to fifty-two (average in 

 85 specimens, 47.6). A band of granules along each 

 side from the large ear-opening to the anus, usually 



