232 IGPANID^. 



transverse supraoculars ; two canthal scales ; occipital a little broader 

 than long ; parietals very small, usually one pair on each side ; 

 anterior border of ear feebly denticulated. Dorsal scales larger than 

 ventrals, strongly keeled, not or but slightly mucronate, forming 

 oblique series ; forty-five to fifty scales between the occipital shield 

 and the base of the tail ; twelve to fifteen scales coi'respond to the 

 length of the shielded part of the head ; lateral scales keeled, di- 

 rected obliquely upwards, graduall)" merging into the dorsals and 

 ventrals ; latter smooth, mostlj' entire ; forty-six to fifty scales 

 round the middle of the body. The adpressed hind limb reaches 

 the ear ; tibia as long as the shielded part of the head ; the distance 

 between the base of the fifth toe and the extremity of the fourth 

 sliglitly exceeds the distance between the end of the snout and the 

 posterior border of the ear. Fourteen or fifteen (thirteen to six- 

 teen) femoral pores. Caudal scales much larger than dorsals. Male 

 with enlarged postanal scales, Olive above, with transverse black 

 spots ; a narrow black scapular collar, interrupted medially ; male 

 with a blue, black-edged elongate patch on each side of the belly. 



millim. millira. 



From snout to vent. 40 Fore limb 18 



Head 11 Hind limb 26 



Width of head ... 8 



Reaches a size of 66 millim. from snoiit to vent. 



Mexico, Guatemala. 



u-b. Hgr. ^ 5 . Guatemala. F. D. Godman, Esq. [P.]. 



16. Sceloporus inicrolepidotus. 



Tropidolepis microlepidotus, Gray, Cat. p. 209. 

 Sceloporus grammicus. var. cc, Wier/m. Isis, 1828, p. 370. 

 microlepidotus, Wiegm. Herp. Mex. p. 51 ; Bocourt, Misx. Sc. 



3Iex., Mept. p. 194, pi. xviii. bis, fig. 13 ; Coiw, Proc. Am. Philos. 



Soc. xxii. 1885, p. 395. 

 Tropidolepis microlepidotus, Dum. 8j- Bibr. iv. p. 308. 

 Sceloporus dispar, Baird Sf Gir. Proc. Ac. Philad. 1852, p. 127. 



Head-shields usually smooth ; one or more series of feebly dilated 

 transverse supraoculars ; two canthal scales ; occipital usually a 

 little broader than long ; parietals very small, usually one pair on 

 each side ; anterior border of ear with a denticulation of slightly 

 enlarged pointed scales. Dorsal scales as large as or a little smaller 

 than ventrals, strongly keeled, not or but shghtly mucronate, form- 

 ing oblique longitudinal lines ; sixty-two to seventy-eight scales 

 between the occipital shield and the base of the tail ; sixteen to 

 twenty (fifteen to twenty-two) scales correspond to the length of the 

 shielded part of the head ; ventrals smooth, entire or bicuspid ; 

 sixty-six to seventy-eight scales roui.d the middle of the body. The 

 adpressed hind limb reaches the shoulder or the ear ; tibia about as 

 long as the shielded part of the head ; the distance between the base 

 of the fifth toe and the extremity of the fourth exceeds the distance 



