CROCODILIAN S, LIZARDS, AND SNAKES. 



565 



gulars are rather large and abruptly separated from the small poste- 

 rior gulars. The scales on the collar are very small, largest centrally, 

 smaller on edge. The ventral plates are arranged in eight longitudi- 

 nal and thirty ti'ansverse rows. The back is covered with small, 

 equal-sized granules. The conical tail is provided with scales arranged 

 in whorls. The upper caudals have strong diagonal keels, but the 

 lower are smooth. There are sixteen femoral pores. The hind limb is 

 longer than the distance between the arms and the line of separation 

 of the anterior and posterior gulars. 



The back is clove brown, dotted with gray on single granules pos- 

 teriorly, with a median bluish- white line which bifurcates on the neck 

 about a fourth of an inch behind the occipital plates. There are two 

 similar lines on each side; the first originating on the superciliaries 



"'Sfs^^:' 





-.^i^^ 



Fig. 103. 



Veeticabia sericea Van Denburgh. 



= 1. 



From Van Denburjrli. 



and with a faint continuation on the tail; the second starting at the 

 nostril and ending on the thigh. The ground color of the sides is much 

 paler than in V. hyperythra, being pale sejiia. The general tint of the 

 tail is hair brown above, pale blue below. The ventral and sublabial 

 plates, the chin, gular region, and collar are all pale blue. 



Measurements. — Length to anus, 54 mm.; hind limb, 44 mm.; fore 

 limb, 22 mm.; head to ear, 13 mm.; anus to gular fold, 30 mm.; anus 

 to anterior gular, 42 mm.; width of head, 8 mm. 



The single specimen of Terticaria sericea has been compared with 

 ninety-eight of Yerticaria hyperythra and thirty-eight of Terticaria 

 hyperythra heldiriffii, without any approach to its distinctive characters 

 having been found. 



Type. — Cat. No. 435, Cal. Acad. Sci. ; San Jose Island, Gulf of Cali- 

 fornia; Walter E. Bryant, April, 1892. 



