DESCRIPTION OF A NEW LIZARD FROM LOWER CALIFORNIA. 



• BY 



Leonhard Stejneger, 



Curator of the Department of Reptiles and Batrachians. 

 Cueniidophorus labialis sp. uov. 



Diagnosis. — Nasal in contact with second supralabial ; postnasal and 

 first supralabial not in contact; two large preanals, the largest behind ; 

 dorsal scales equal; nostril auterior to nasal suture; eight longitudinal 

 rows of ventral plates ; femoral pores twelve to thirteen ; frouto-parie- 

 tals distinct ; supraoculars four ; caudal scales slightly oblique. 



Habitat. — Cerros Island, Lower California. 



Type, U. S. National Museum, No. 15590 ; L. Belding, coll. 



Description of type specimen. — Nostril auterior to nasal suture ; three 

 parietals ; four supraoculars ; seven supraciliares ; a freno-orbital ; two 

 frouto-parietals ; scales on middle of eyelid slightly enlarged, hexag- 

 onal ; nasal in contact with second upper labial, postnasal and second 

 upper labial being separated ; posterior gular scales small, abruptly 

 separated from the anterior, the line of demarcation between them 

 being emphasized by the two rows nearest the latter being markedly 

 smaller than the rest of the posterior ones ; plates of the collar rather 

 large, in several rows, the marginal largest ; dorsal granules smooth, 

 rather large ; ventral plates in eight longitudinal and thirty-one trans- 

 verse rows. Two large preanals, wider than high, the posterior plate 

 being widest. Three rows of brachials of nearly the same size ; ante- 

 brachials continuous with brachials, in two rows, the outer one hardly 

 larger ; granules along posterior edge of under side of forearm but 

 slightly enlarged. Five rows of femorals, outer largest ; tibials in 

 three rows, outer largest. Upper aud lateral caudal scales slightly 

 oblique, rather strongly keeled, and pointed posteriorly. Color above 

 dark brown, with six longitudinal light lines and a median clay-colored 

 band of the same shade as the top of the head ; two light longitudinal 

 lines on four limbs and three on hind limbs ; under side whitish, more 

 or less suffused with bluish, especially on the flanks. 



For dimensions, see table below. 



In addition to the type, there are four other specimens which agree 

 with it in all essential points ; two of them have thirteen femoral pores, 

 while two have only twelve; two have thirty-three rows of ventrals, 

 one has thirty-one, and one thirty; three have three antebrachial rows, 



Proceedings National Museum, Vol. XII— No. 788. 



