REPTILES OF THE PACIFIC COAST. 25 



Postanal. — Behind the anus, especially a pair of large 



plates in the males of some lizards. 

 Posterior. — Toward the tail. 

 Postfrontals . — See prefrontals . 

 Postgeneials. — The posterior pair of geneials. 

 Postmentals . — Plates behind the mental. See sublabial 



and geneial. 

 Postociilar. — Bounding the orbit behind. 

 Preanal. — In front of the anus. 



Preanal pores. — Glands opening in front of the anus. 

 Prefrontal. — Scales between internasals and frontal. 



Sometimes applied to the internasals. 

 Pregeneials. — The anterior pair of geneials. 

 Prenasal. — Anterior nasal. 

 Preocular . — Bordering the orbit in front. 

 Pseudopreocular. — Small plate or plates below the preoc- 

 ular. 

 Reticulate. — Marked with lines like the meshes of a net. 

 Rostral. — Plate on the tip of the snout. 

 Scute. — A scale, especially a large flat one. 

 Subcaudals . — Urosteges. 

 Suhlahials. — Plates below the infralabials. 

 Subocular. — Scales between the eye and the supralabials. 

 Superciliary. — Along the upper, outer edge of the orbit. 



Sometimes applied to the supraoculars of snakes. 

 Superior. — Upper. 

 Supracaudal. — Over the tail; the last pair of marginal 



plates of turtles, sometimes united. 

 Supralabials. — Upper labials. Also called superior labials 



or labials. 

 Supraocular. — Of snakes, the large scale over the eye; 



of lizards, the scales over the eye excepting the 



superciliaries. 

 Suture. — The line of joining. 



