HERPETOLOGY OF LOWER CALIFORNIA. 1 29 



first supraocular, prefrontal, and posterior nasal, plates. 

 There are four supraoculars; the first is in contact with 

 the first superciliary, loreal, prefrontal, frontal and second 

 supraocular; the second touches the frontal; the third 

 forms sutures with the frontal and frontoparietal; the 

 fourth is separated from the parietal by a series of gran- 

 ules. The frontoparietal is more than half as large as 

 the frontal. There is a transverse row of small occipital 

 plates. The sublabials are separated from the infra- 

 labials by granules. There are five superior and five in- 

 ferior labials to below the middle of the eye. The ear 

 opening is not denticulated. The anterior gulars are quite 

 large, and abruptly separated from the small posterior 

 granules. The scales on the collar are very large, largest 

 on its edge. The ventral plates are in thirty transverse, 

 and eight longitudinal rows. The back and sides are 

 covered with small equal sized granules. The tail is 

 somewhat flattened at its base, and is covered with whorls 

 of diagonally keeled scales. The lower caudals are 

 smooth. The hind limb is as long as the distance be- 

 tween the anus and the front of the collar. There are 

 fourteen and fifteen femoral pores. 



The plates on the head are pale olive. There are two 

 narrow longitudinal wood brown lines on the back, sepa- 

 rated by an area of sepia. The sides are dark olive with 

 two bluish white longitudinal lines. The upper, of these 

 lateral lines, arises on the superciliary plates and is con- 

 tinued for some distance on the tail. The lower originates 

 on the posterior nasal plate, and ends on the thigh. A 

 light stripe on the back of the thigh is continued along 

 the tail. The first and half of the second longitudinal 

 rows of ventral plates are grayish pale blue. The entire 

 lower surface, except of the hind limbs, is reddish orange- 

 crome. 



2d See., Vol. V. ( 9 ) May 28, 1895. 



