TILIQUA RUFESCENS. 227 



Twenty-seven longitudinal series of scales may be counted across 

 the middle region of the body, slightly larger on the back than on the 

 sides and belly. 



The largest specimen before us measures about fifteen inches, and 

 exhibits anteriorly four, and posteriorly eight, brown lines or streaks 

 along the upper region of the back and tail. In the young, these lines 

 are more numerous, running likewise on the sides. The sides of the 

 head are spotted with brown and white ; the brown appearing at dis- 

 tance, as though there were vertical lines or bars across the face. 



Loc. Rio de Janeiro, Brazil. 



GENUS TILIQUA, GRAY. 



GEN. CHAR. Body subfusiform, stoutish, protected by keeled scales. 

 Head subquadrangulo-pyramidal. Nostril in one plate, oblong, 

 lateral ; one pair of supranasals. Parietuls and middle occipital 

 distinct. Lower eyelid scaly. Auricular aperture denticulated in 

 front. Maxillary teeth compressed. Palate toothed. Limbs four, 

 stout, rather distant; five fingers and five toes, compressed, unequal, 

 clawed. Subdigital plates smooth. Palms and soles granular. Tail 

 subcylindrical, tapering; scales beneath wide. 



SYN. Tillqua, GRAY, in Zool. Journ. Ill, 1827, 227; Ann. Nat. Hist II, 1839, 

 288 ; &, Catal. Lizz. Brit. Mus. 1845, 108. FITZ. Neue Class. Kept. 1826, 23. 

 Eutropis, FITZ. Syst. Kept. 1843, 22. 



OBSERV. A genus which has undergone various modifications since 

 first proposed. Not being well understood when established, species 

 of most diversified structure were placed in it by several authors. It 

 is one of those that need be carefully examined, and critically com- 

 pared to Euprepis, and other congeners. We regret not having the 

 means of going any further into its study. 



TILIQUA RUFESCENS, Gray. 

 SPEC. CHAR. Nasal plates lateral ; supranasals nearly contiguous or 



