88 IGTJAXID^. 



scales : canthus rostralis feebl}' marked ; seven or eight loreal rows ; 

 seven to ten labials to below the centre of the eye ; ear-opening 

 rather large, vertically oval. Gular apj)endage 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 adj^ressed hind limb reaches the nostril, or between the 

 latter and the orbit ; digits feebly dilated ; fifteen or sixteen lamellae 

 under phalauges ii. and iii. 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 miUim. 



Head 17 „ 



Width of head 9*5 „ 



5» 

 ?1 



Body 43 



Fore limb 26 



Hind limb 51 



Tibia 15-5 



Tail 120 



Colombia, Ecuador. 



a. c? . ? Mme, Pfeiffer [C], 



b. 2 ■ Tanti, Ecuador, 2000 feet. E. Whymper, Esq. [C.]. 



98. Anolis biporcatus. 



Dactyloa biporcata, TJl'effm. Her p. Mex. p. 47. 



Anolis (Dracoutura) vittigerus, Cope, Proc. Ac. Philad. 1862, p. 179. 



biporcatus, Bocoiirt, 3Iiss. Sc. Mex., Bept. p. 98, pi. xv, tig. 8 ; 



O'Shaiajhn. Ann. Sj- Mwj. 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 ; eai'-opening moderately 

 large, roundish or suboval. Gular appendage moderately large, 

 small but present in the female; gular scales keeled. Body slightly 



