10. OPHRYOESSA. Ill 



Fore limb 78 milli 



Hind liml) 170 



Tail 500 



m. 



i> 



>> 



Colombia ; Ecuador. 



n-b, c-d, e-(j. d, § , and vg. Esmeraldas. Mr. Fraser [C.]. 



h.6- ' ? Mdme.Pfeiffer [C.]. 



10. OPHRYOESSA. 



Uraniscodon, part., Kaup, Isis, 182G, p. 89. 



Ophryoessa, part., Fifziw/. A. Classif. Ecpt. p. 17 ; Wiegm. Herp. 



Mex. p. 15. 

 Oplnyoessa, Wacjl. Syst. Ampk. p. 140 ; Dion. S,- Bibr. iv. p. 237 ; 



Fitziny. Sj/d. Bept. 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 lamelloa 

 inferiorly. N"© 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. 

 Jjacerta superciliosa, Linn. S. N. i. p. 360. 

 Agama superciliosa, Darnl, liept. iii. p. 33(3 ; KuM, Beitr. Zool, Vergl. 



Anat. p. 105. 

 Lophyrus xipliosurus, Spiv, Spec. Nov. Lacert. Bras. p. 9, pi. x. 



auronitens, Spix, I. c. p. 12, pi. xma. 



Urani.-codcn superciliosa, Kaup, Lsis, 1826, p. 90. 



Ophryoessa superciliosa, (Boie) Fitziny. N. Classif. Bept. p. 48 ; 



Guer. LcoJi. B. A., Bept. pi. viii. fig. 1 ; Dum. k Bibr. p. 238 ; 



Gitiche)i. in Casteln. Amer. Mer., Bept. p. 22 ; Peters, Mon. Berl. 



Ac. 1877, p. 407. 

 Hypsibatus (Ophryoessa) superciliosus, Fitzing. Syst. Bept. 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. Niichal 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 



