Zoology.'] NATURAL HISTORY OF VICTORIA. [Reptiles. 



short — again not noticed by the author. Our figure of tlie plain- 

 colored variety on Plate 153, Fig. 2, also shows a slight difference 

 of color and characters of the scales where a fracture during life 

 and reproduction gives apparently yet another proportional length 

 of tail. 



Common, particularly in the warmer northern part of the 

 colony. 



Explanation op Figures. 



Plate 152. — Fig. 1, fine, perfect, male average specimen, n.atural size. Fig. la, top of head, 

 magnified tveo diameters, to show the form and proportion of cephalic plates (with one 

 abnormal median plate between the inner ends of the posterior supra-n.asals). Fig. \h, side 

 view of head, magnified two diameters, showing the side plates of head, the ear, and the keeled 

 scales of the upper surfiice, and smooth scales of lowtr side. Fig. Ic, under-side of head, magni- 

 fied two diameters. Fig. Id, side view of snout, magnified four diameters, to show more clearly 

 the relative position of nostril and surrounding plates. Fig. le, front view of head, niiignified 

 two diameters, showing the rostral and mental plates. Fig. If, scaly eye-lid and plates about 

 orbit, magnified four diameters. Fig. It/, Sub-caudal scales of middle and adjacent rows, 

 magnified three diameters. Fig. lA, scales of back, to show the narrow, definite, thread-like 

 keel, magnified three diameters. Fig. li, under-side of end of abdomen and base of tail, 

 magnified two diameters, to show pre-anal pores .and adj.acent scales. Fig. I^, side view of same 

 part, magnified two diameters, to show scaling of posterior feet. Fig. 1/, under-side of extremity 

 of tail, magnified two diameters. 



Flate 163. — Fig. 2, female, variety, with plain coloring, natural size (the shortness of the tail 

 being due to its having been reproduced after fracture). Fig. 2a, side view of head, magnified 

 two diameters. Fig. 24, top of head, showing some irregular variations in size and shape of 

 plates, magnified two diameters. Fig. 2c, front view of head, magnified two diameters. 

 Fig. 2(1, side of snout, magnified four diameters. Fig. 2e, scaly eye-lid and adjacent pliites, 

 magnified four diameters. Fig. 2/, pre-anal pores, with shorter foot-flaps and adjacent scales, 

 magnified two diameters. Fig. 2(i, .sub-caudal scales, magnified three diameters. Fig. 2/i, 

 dorsal scales, with narrow, definite, thread-like keel, magnified three diameters. 



Frederick McCoy. 



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