68 LACERTILIA. 
Twenty-six or twenty-seven scales in a series along the back, the dorsal series nearly 
parallel ; scales keeled, with a terminal spine. The large supraoculars are broken up 
and form two series. Two canthal scales, but owing to the shortness of the snout 
the anterior is not always fully developed. Anterior lobes of the ear-opening as large 
as the preceding scales. Hind limb as long as the distance of the vent from the collar ; 
fourth toe longer than the head. Femoral pores fourteen or fifteen. Green; scales 
of the males sometimes with a lighter basal spot, females with indistinct subangular 
dark markings; males blue underneath, the middle of the abdomen being yellowish ; 
collar-fold black, this colour not extending across the neck or throat. 
Size of adult male 22 inches without tail. 
10. Sceloporus salvini, sp. n. 
Sceloporus formosus, part., Boul. Cat. Liz. 11. p. 222. 
Hab. Mexico, Jalapa (Hodge) ; GUATEMALA (Salvin). 
From thirty to thirty-two scales in a series along the back; scales on the back in 
parallel series, keeled, with a long terminal spine. Two series of large supraoculars, 
the scutes of the outer series being the smaller and separated from the superciliary 
margin by two series of granular scales. ‘Two canthal scales. Ear-opening with one 
larger and a few smaller lobes in front. Hind limb as long as the distance of the vent 
from the collar; fourth toe longer than the head. Femoral pores twelve. Green; 
with or without longitudinal rows of darker spots; a rather narrow deep black collar, 
which, in the middle of the neck, is interrupted for the width of one or two scales, or 
at least contracted, and extends across the throat ; males with the throat and the sides 
of the abdomen blue, the middle being yellowish with a black streak on each side. 
Size of adult male 33 inches without tail. 
11. Sceloporus smaragdinus. 
?? Sceloporus formosus, Wiegm. Herpet. Mex. p. 50, t. 7. fig. 2. 
Sceloporus formosus, part., Bocourt, Miss. Sc. Mex., Rept. p. 182, t. 18. figg. 8, 3a—-c; Boul. Cat. 
Liz. i. p. 222. 
? Sceloporus malachiticus, Cope, Proc. Ac. N. Sc. Phil. xvi. p. 178; Journ. Ac. N. Sc. Phil. viii. 
p. 127; and Proc. Am. Phil. Soc. 1885, p. 397. 
Sceloporus smaragdinus, Bocourt, Miss. Sc. Mex., Rept. p. 186, t. 18. figg. 6, 6a, b, and t. 19. 
figg. 1, la, 6. 
Sceloporus teniocnemis, Cope, Proc. Am. Phil. Soc. 1885, p. 399. 
Hab. Mexico, Yucatan (Cope); GuatemaLa (Cope), Duefias and Yzabal (Salvin), Solola, 
Totonicapam, Quezaltenango (Bocourt); Costa Rica, Arriba, San José (Cope), 
Irazu (Logers). 
From thirty-two to thirty-four scales in a series along the back ; scales on the back 
in parallel series, keeled, with a long terminal spine and more or less distinct lateral 
