538 



REPORT OK NATIONAL MUSEUM, 1898. 



15 mm.; length of bead to the borders of the temples, 10 mm.; length 

 of body from chiu to anus, 09 mm.; length of tail, 80 mm.; length of 

 arm to the eud of the middle finger, 15 mm. ; length of leg to the end 

 of the longest toe, 21 mm. 



Upper partof body is bronze green; head spotted with black on top; 

 three black longitudinal bands on the back, of which the middle one is 

 the widest and extends to the middle of the tail (these bands may be 

 represented by series of brown spots); flanks and sides of neck with 

 vertical black bars or a black network inclosing greenish-white dots; a 

 streak of the same color on each side of the head on a black ground 

 color; tbis line begins at the nostril, passes beneath the eye, crosses 

 the cheek, and fades out on the side of the neck in the midst of spots 

 of the same color, or it may be wanting on the cheek; lower surfaces 

 datk green, with numerous small, angular, yellowish-white spots. The 

 specimen sent to M. Bocourt by Professor Peters has the breast light 

 green, with numerous greenish-black spots, some of Avhich are as large 

 as those on the belly and tail. 



Concerning this species, M. Bocourt remarks: " 6r. antauges closely 

 resembles G. (Mesaspis) moreletii in the shape of the head and the color- 

 ation of the upper surfaces. It differs from the two other sj^ecies here 

 described, in the presence of an anterior dorsal plate, agreeing in this 

 respect with the (/. Jimhriata." 



Bariasia antauges Cope. 



XENOSAUEIDiE. 



Xenosaurida' Cope, Proc. Acad. Nat. Sci. Phila., 1866, p. 322. 

 Trachydermi arjlyphodonta Bocourt, part, Miss. Sci. Mex., Rept., 1878, p. 303. 

 Xenosauridm Boui.enger, Ann. Mag. Nat. Hist. (5), XIV, 1884; Cat. Liz. Brit. 

 Mus., 2d ed., II, 1885, p. 250. 



Boulenger's description is as follows: 



Tongue short, villose, witli a narrow feebly incised, rebractile anterior part covered 

 with flat pipilLi;. Dentition strictly pleurodont; teeth numerous, small, with long 

 cylindrical shafts, the laterals with obtusely bi- or tricuspid crowns; the new teeth 

 originate between the bases of the old ones. Palate toothless. Postorbital and 

 frontosquamosal arches bony ; supratemporal fossa not roofed over by bone ; premax- 

 illary, frontal, and parietal single; nasals distinct; palatines and pterygoids widely 

 separated medially, both bordering the infraorbital fossa; a supraorbital bone. 

 Limbs well developed. Clavicle slender, not dilated proximally; iuterclavicle 

 T-shaped; sternum without fontanelle. 



The unique genus, of which the preceding description is given, constitutes a con- 

 necting link between the Iguanida' and the Anguida). Its affinity to the former is 

 shown by the T-shaped clavicle, the absence of symmetrical bony shields on the 



