THE VERTEBRATA 155 



birds and reptiles lies in beauty and ugliness. 

 Even in their eggs, the reptiles display no love 

 for adornment, no colouring or pattern. Fig. 44 

 shows the eggs of some reptiles. 



FIG. 44. Eggs of Reptiles, 

 half the natural size. A, 

 of African Cobra. B, of 

 Common English Snaike. 

 C, of Common English 

 Lizard, Lacerta agilis. 

 Z>, of Elephantine Tor- 

 toise. E, of Crocodile. 



The five chief groups of existing reptiles are 

 the Chelonia (Tortoises and Turtles) ; the Rhyn- 

 cocephala, represented only by Hatteria, a lizard 



