290 IGUANID.E. 
Head longer than broad; loreal region perpendicular; nostril 
below the canthus rostralis, a little nearer the orbit than the end of 
the snout ; tympanum a little larger than the eye-opening, without 
marginal denticulation. Upper head-scales very small, convex, 
obtusely keeled; occipital scarcely enlarged. Sides and lower 
surface of neck strongly plicate. Body slightly depressed, strongly 
plicate on the sides. Dorsal scales small, irregular, obtusely keeled, 
juxtaposed, intermixed with larger, obtusely keeled or spinose tu- 
bercles forming irregular transverse series; lateral scales minute, 
granular, intermixed with small tubercles ; ventral scales squarish, 
smooth, larger than dorsals. Gular scales granular. Limbs short ; 
the adpressed hind limb reaches the axilla; some large spinose 
tubercles on the femur and tibia; digits short. Three to five 
femoral pores on each side. Tail about as long as the distance be- 
tween the end of the snout and the fore limb, flat, as broad as the 
body, ending in a point; the scales on its upper surface of unequal 
size, rugose, keeled and spinose, with a series of larger ones along 
the middle; largest of all, forming long curved spines, are the scales 
of the outer series on each side; infracaudal scales small, smooth, 
like the ventrals. Brown above, spotted with blackish and yel- 
lowish ; an oblique yellowish band on the shoulder; lower surfaces 
whitish ; middle of belly and a J-shaped figure on the throat 
black. 
millim. millim 
Total length ...... 137 Fore limb........ 34 
Head............ 26 Hind limb........ 47 
Width of head .... 18 Wal, 2 sos piensa 44 
Body ie natant sani 67 
Brazil. 
a,b. Ad. stuffed, St. Paul. 
ce. Skin. 8. America, Sir A. Smith [P.]. 
dd. S. America. 
2. Hoplocercus annularis. 
Hoplocercus annularis, O'Shaughn. Proc. Zool. Soc. 1881, p. 244, 
pl. xxv. fig. 2. 
Upper head-scales small, convex, smooth, a little enlarged and 
flat on supraocular regions; no distinct occipital. Dorsal and 
lateral scales finely granular, intermixed with obtusely keeled sub- 
oval tubercles, forming longitudinal series on the back and irregular 
vertical series down the flanks. Limbs with large conical tubercles ; 
the adpressed hind limb reaches the ear; digits moderately elongate, 
Two femoral pores on each side. Tail a little longer than head and 
hody, cylindrical, regularly encircled by whorls of largo spinose 
