88 IGUANID®, 
scales ; canthus rostralis feebly marked ; seven or eight loreal rows ; 
seven to ten labials to below the centre of the eye; ear-opening 
rather large, vertically oval. Gular appendage moderately large ; 
gular scales keeled. Body slightly compressed; no dorso-nuchal 
fold. Dorsal scales rather small, hexagonal, strongly keeled, sub- 
imbricate, passing gradually into the minute, granular, keeled 
laterals ; ventrals larger than dorsals, rounded, imbricate, strongly 
keeled. The adpressed hind limb reaches the nostril, or between the 
latter and the orbit; digits feebly dilated; fifteen or sixteen lamelle 
under phalanges 11. and m1. of the fourth toe. Tail cylindrical or 
very slightly compressed, covered with equal keeled scales ; its length 
nearly twice that of head and body. Male with enlarged postanal 
scales. Male pale golden brown above, with the vertebral region 
lighter, and a series of dark brown spots partly confluent into a band 
along each side of the back; a yellow spot on the tibia; lower sur- 
faces yellowish white. Female with a broad coppery-brown band 
on each side of the head, passing through the eye, widening and 
covering the whole of the body save a dark brown vertebral band. 
Total length .......... 180 millim. 
Head wives cae ead saan Ls 
Width of head ........ 95 ,, 
Body" eacaw sation cas 43, 
Fore limb ............ 26 OC, 
Hind limb............ 51g, 
DAD 1835 ech oie vials acai 15:5 ,, 
Wat ae at oes een tene ns 120, 
Colombia, Ecuador. 
a. 3. ; ? Mme. Pfeiffer [C.1. 
b. Q. Tanti, Ecuador, 2000 feet. E. Whymper, Esq. [C.}. 
98. Anolis biporcatus. 
Dactyloa biporcata, Wiegm. Herp. Mex. p. 47. 
Anolis (Dracontura) vittigerus, Cope, Proc. Ac. Philad. 1862, p. 179. 
—— biporcatus, Bocourt, Miss. Se. Mex., Rept. p. 98, pl. xv. fig. 8; 
O'Shaughn. Ann. § Mag. N. H., (4) xv. 1875, p. 274, 
Head about once and two thirds as long as broad, as long as or 
slightly shorter than the tibia; forehead slightly concave; frontal 
ridges very short and feeble; upper head-scales keeled; scales of 
the supraorbital semicircles enlarged, separated by one or two series 
of scales; strongly keeled enlarged supraocular scales, separated 
from the supraorbitals by one or two rows of granules ; occipital as 
large as, or a little larger than, the ear-opening, separated from the 
supraorbitals by two to four series of scales; canthus rostralis 
angular, canthal scales three ; loreal rows six to eight; six or seven 
labials to below the centre of the eye; ear-opening moderately 
large, roundish or suboval. Gular appendage moderately large, 
small but present in the female; gular scales keeled. Body slightly 
