44 INTRODUCTION 



Glossary 



Abdominal. — Pertaining to the lower surface of the body. 



Abdominal plates. — Gastrosteges of snakes j the fourth pair 

 of plastral plates of turtles. 



Alveolar surface. — Masticatory surfaces just within the cut- 

 ting edges of the jaws of turtles. 



Anal plate. — The large scale just in front of the anus in 

 most snakes, sometimes divided j one of the last pair of 

 plastral plates. 



Anteorbital. — See preocular. 



Anterior. — Toward the head. 



Antocular. — See preocular. 



Anus. — The external opening of the cloaca. 



Axilla. — The armpit. 



Axillary. — Plates on the anterior surface of the bridge of 

 turtles. 



Azygous. — Single; not one of a pair. 



Brachials. — Large scales on the arm. 



Bridge. — That portion of the shell of a turtle which at- 

 taches the plastron to the carapace. 



Canthus rostralis. — A slight continuation of the super- 

 ciliary ridge separating the top from the side of the snout. 



Carapace. — The upper portion of the shell of turtles. 



Carinate. — Keeled. 



Chin shields. — See genials. 



Cloaca. A common chamber at the posterior ends of the 

 alimentary and urogenital canals. 



Collar. — Gular fold, especially of Teiidas. 



Costals. — The large plates on the sides of the carapace. 



Dermal. — Pertaining to the skin. 



Femoral pores. — Glands along the lower surface of the 

 thigh. 



Femorals. — Of turtles, the fifth pair of plastral plates; of 

 lizards, plates on the thigh. 



Frenal. — See loreal. 



