376 Lacerticlse. 



smooth. Digits compressed, with smooth scales beneath, 

 denticulated laterall}^ No femoral pores. Tail long, 

 cylindrical. 



A single species. 



This genus is to he regarded as an exaggerated form of tlie repre- 

 sentatives of the section Saurites in the genus Scaptira, from which 

 it is evidently derived, as MacmaJionia is derived from Scaptira, s. str. ; 

 hut the generic differentiation is greater than in Macniahonia, for, in 

 addition to the loss of the femoral pores, the collar has disappeared, 

 and the head has assumed an extraordinary shape. 



1. APOROSAURA ANCHIETJ^. 



Pachyrhynchus a??r/nVte, Boeage, 11. cc. p. 227, fig., and p. 33, pi. iii, 

 fig. 1. 



Aporosaura anchietx, Bouleug. I.e. ; Werner, Jen. Denkschr. xvi, 

 1910, p. 340. 



Head large, 3^ times in length to vent. Rostral much depressed, 

 forming with the first seven upper labials the projecting border of the 

 snout ; Uiisals in contact behind the rostral ; frontonasal a little 

 broader than long; prefrontals forming a median suture; frontal 

 narrow, shorter than its distance from the end of the snout ; parietals 

 nearly twice as broad as long, separated from each other by the inter- 

 parietal, which is smaller than the frontoparietals. Three large 

 supraoculars, the first with a small detached sshield on the inner side. 

 Lower nasal not reaching the rostral, resting on the first and second 

 upper labials ; anterior loreal larger than the second ; subocular resting 

 on the 5th to 7tli upper labials ; temporal scales granular ; ear-opening 

 narrow, without marginal denticulation. 



6 pairs of chin-shields, the three anterior in contact in the middle; 

 gular scales very small, granular. 



Scales extrenaely small, granidar, larger on the lower part of the 

 sides and passing gradually into the ventral plates, wliicli are small, 

 square, and number 20 to 24 in a transverse series. Preanal scales 

 numerous, small, subequal. 



Scales on the flattened base of the tail similar lo the dorsals, those 

 on the roiuided portion elongate quadrangular and feebly keeled. 



The type is described as golden yellow above, witli a wide-meshed 

 black network on the back and limbs ; a black vertebral sti"eak ; head 

 variegated with black ; an elongate black spot on the occiput ; a black 



