APPENDIX F. REPTILES. 209 



The plates -winch line the jaws are subquadrangular, very narrow and 

 elongated, four above and five below, the latter considerably larger. 

 Above the series of plates of the upper jaw, and between the suborbitals, 

 two series of small and irregular plates may be observed. Four or five 

 inframaxillary plates constitute a series on each side of the lower surface 

 of the head, joined anteriorly by the subpentagonal symphysal plate. 

 Between the inframaxillary series and the series lining the lower jaw 

 exists a series of four or five elongated and small plates. 



The auditive aperture, which is proportionally large, is oval, and al- 

 most vertical in its longest diameter. A.t its anterior margin may be 

 seen two or three scales, larger and more pointed than those on the tem- 

 poral region. Behind the auditive aperture, and situated obliquely on 

 the neck, is a slight fold of the skin. 



The neck is somewhat contracted, the body slender and depressed, 

 with the back, however, slightly arched, and the belly flat. The tail, as 

 already mentioned, is quite long and slender, depressed at its base, and 

 hence conical towards the tip. 



The fore-legs, when stretched backwards along the sides, extend nearly 

 to the groin, while the hind-legs, when brought forward, reach almost 

 to the ear. 



The scales are imbricated and keeled on the back and sides. Their 

 general shape is that of a lozenge, terminated posteriorly by an acute 

 spine. There are ten longitudinal rows along the back, with five on 

 each side, which ar„ somewhat oblique, and smaller. Underneath, the 

 scales are smooth, posteriorly tricuspid on the belly, whilst under the 

 head and throat they have but two posterior spines. The scales below 

 as well as above the fore-legs are keeled. Those on the upper part cf 

 the hind-legs are also keeled, whilst on the thighs they are smooth. The 

 fingers and toes are surrounded with carinated scales to their very tips. 



The femoral pores, thirteen or fourteen in number on each side, are 

 conspicuous and situated in the middle of one single small plate. 



The black spots in the series along the back are comparatively small, 

 and separated from each other by a space greater than their diameters. 

 The yellow stripe extends from the origin of the neck to beyond the 

 anus, the black from above the shoulder to the groin. The blue patch 

 is elongated and narrow, terminated posteriorly by a black stripe which 

 runs for a little distance along the thigh. There is an elongated black 

 spot on the shoulder. 



One specimen was collected on the 6th of June. 



Plate X, fig. 5, represents the species in profile and of the natural 

 size. 



14 



