10. oPHRYORSSA, 111 
Fore limb ............ 78 millim. 
Hind limb ............ 170, 
RAI? airs, gears iuatdnncanse danas 500, 
Colombia ; Ecuador. 
a-b, c-d, e-g. 3, 2, and yg. Esmeraldas. Mr. Fraser [C.]. 
ho. —? Mdme. Pfeiffer [C.]. 
10. OPHRYOESSA. 
Uraniscodon, part., Kaup, Isis, 1826, p. 89. 
Ophryoessa, part., Fitsing. N. Classif. Rept. p.17; Wiegm. Herp. 
Mex. p. 15. 
Ophryoessa, Wagl. Syst. Amph. p.149; Dum. § Bibr. iv. p. 237; 
Fitzing. Syst. Rept. p. 57; Gray, Cat. Liz. p. 196. 
Tympanum distinct. Body slightly compressed ; a dorsal crest ; 
dorsal scales small, equal. A transverse gular fold; gular pouch 
absent. Digits denticulated laterally, with sharply keeled lamelle 
inferiorly. No femoral pores. Tail long, compressed. Lateral 
teeth tricuspid; pterygoid teeth. No sternal fontanelle. Abdo- 
minal ribs none. 
South America. 
1. Ophryoessa superciliosa. 
Ophryoessa superciliosa, Gray, Cat. p. 196. 
Lacerta superciliosa, Linn. S. N. i. p. 360. 
Agama superciliosa, Daud. Rept. iii. p. 3306; Kuhl, Beitr. Zool. Vergl. 
Anat. p. 105. 
Lophyrus xiphosurus, Spir, Spec, Nov. Lacert. Bras, p. 9, pl. x. 
auronitens, Spiz, lc. p. 12, pl. xiiia. 
Uraniscodon superciliosa, Kaup, Isis, 1826, p. 90. 
Ophryoessa superciliosa, (Bove) Fitsing. N. Classif. Rept. p. 48; 
Guér, Icon. R. A., Rept. pl. viii. fig. 1; Dum. & Bibr. p. 238; 
Guichen. in Casteln. Amér, Mér., Rept. p. 22; Peters, Mon. Berl, 
Ac. 1877, p. 407. 
Hypsibatus eiplenronsial superciliosus, Fitzing. Syst. Rept. p. 57. 
Head moderately large, short, rounded, its length equalling nearly 
once and one third its width ; canthus rostralis and supraciliary edge 
angular, projecting; nostril pierced above the canthus rostralis, 
nearer the end of the snout than the orbit; tympanum vertically 
oval, a little larger than the eye-opening. Upper head-scales small, 
irregular, strongly keeled or tubercular; enlarged subconical tuber- 
cles surrounding the large, rugose occipital; five or six upper and 
as many lower labials. Throat with strong transverse folds; gular 
scales strongly keeled. Nuchal and dorsal crests a low serrated 
ridge, the former a little more developed. Dorsal and lateral scales 
small, equal, rhomboidal, imbricate, strongly keeled ; ventrals larger, 
also strongly keeled. Limbs long, covered with equal keeled scales ; 
the adpressed hind limb reaches the tympanum or the angle of the 
mouth; digits long and slender, the toes strongly denticulated 
