REPTILIA 



233 



study of the skeleton and viscera to see the difference between this 

 form and any of the lizards. The illustration (Fig. 132, A) shows 

 better than a verbal description its salient external features. 



FIG. 132. Sphenodon punctatum. A, Lateral view; B, dorsal view of skull; 

 C, ventral view of skull; D, lateral view of skull, c, condyle; cl, columella; 

 ep, ectopterygoid; /, frontal; j, jugal; m, maxillary; pm, premaxillary; n, nasal; 

 p, parietal; pi, palatine; prf, prefrontal; ptf, postfrontal and post-orbital; pg, ptery- 

 goid; q, quatrate or quadratoj ugal ; sq, squamosal; v, vomer. (After Gadow.) 



ORDER CHELONIA (TURTLES AND TORTOISES) 



The members of this order are so uniquely modified that there is 

 no difficulty in recognizing them and in distinguishing them from all 

 other living creatures. Their short, broad body, covered by the 



