270 A.-SQUI&M. 



millim. millira. 



Total length 208 Fore limb 25 



Head 20 Hind limb 28 



Width of head .... 16 Tail 114 



Body 74 



Mexico. 



4. Gerrhonotus taeniatus. 



Abronia tseniata, Gray, Cat. p. 53. 

 Gerrhonotus tseniatus, Wiec/m. his, 1828, p. 330, and Herp. Mex. 



p. 32, pi. iv. fig. 1 ; Dum. S,- Bibr. v. p. 399. 

 Abronia taeniatus, Graif, Ann. N. H. i. 1838, p. 390. 

 Gerrhonotus (Abronia) taeniatus, Booourt, Miss. Sc. Mex., Rept. 



p. 327, pi. xxi. A. figs. 4, 5. 



Closely allied to G. deppii. A small shield on each side between 

 the anterior loreal and the central praefrontal. Dorsal scales a 

 little smaller, less obliqiie, obtusely keeled ; they form fourteen 

 longitudinal series, and twentj'-eight or twent}'-nine transverse 

 series. Yentrals in twelve longitudinal series. Limbs a little 

 longer. Light green above, with transverse brown bands on the 

 body and tail ; an oblique black band on the temple ; lower parts 

 yellow. 



Mexico. 



5. Gerrhonotus vasconcelosii. 



Gerrhonotus vasconcelosii, Bocoiirt, Ncuv. Arch. 3Ius. vii. 1872, 



Btdl. p. 107. 

 (Abronia) vasconcelosii, Bocourt, Miss. Sc. Me.v., Rept. p. 334, 



pi. xxi. fig. 3, & xxi A. fig. 8. 



Head-shields smooth ; a pair of small shields behind the rostral 

 and seven praefrontals, the two anterior in contact, the median 

 separating the two other pairs and touching the frontal ; nasal 

 separated from the rostral ; a small supranasal ; two small super- 

 posed postnasals ; two loreals, second largest ; three small outer 

 supraoculars ; ten upper labials ; a series of short, obtusely conical, 

 projecting scales above the ear. Sides of neck covered with granular 

 scales. Lateral fold pretty well marked though not very deep, 

 commencing in advance of the arm. Dorsal scales obtusely keeled, 

 of the flanks smooth, in twelve or thirteen longitudinal and twenty- 

 seven transverse series ; ventrals smaller, in fourteen longitudinal 

 series. Tail moderately long, a little depressed at the base. Bright 

 green above, with broad angular blackish cross bands : the pro- 



