Sauropsida: Class fleptilia 



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Fig. 373. Side and posterior views of skull of young Sphenodon. Cartilage 

 dotted, (a) Dentale; (ar) articular; (bo) basioccipital; (cr) coronoid; (eo) exoccipital; 

 (ep) epipterygoid; (ex) extranasal; (/) frontal; (h) hyoid; (j) zygomatic (jugal); 

 (mx) maxilla; (n) nasal; (oo) opisthotic; (p) parietal; (pf) prefrontal; (pm) pre- 

 maxilla; (pot) postfrontal; {poo) postorbital; (q) quadrate; (qj) quadra tojugal; (san) 

 supra-angular; (so) supraoccipital; (sq) squamosal. (After Howes and Swinnerton. 

 Courtesy, Kingsley: "Comparative Anatomy of Vertebrates," Philadelphia, 

 The Blakiston Company.) 



Fig. 374. Sphenodon. (Photographed iu its natural environment in New Zealand 

 by Frieda N. Blanchard.) 



