5. AMEIVA. 351 



ptychium •with numerous small shields. Dorsal granules flat, 

 smooth, considerably enlarged on the middle, zone of the back. 

 Ventral plates in ten longitudinal rows, those of the external row 

 small ; thirty-two transverse rows ; several irregular, enlarged 

 proDanal plates. A row of large brachials, hardly continuous with 

 a row of large antebrachials ; a few large postbrachials. Pour 

 series of femoral plates ; two series of tibials, inner small. Seventeen 

 or eighteen femoral pores. Scales on the upper surface of the tail 

 oblique, those on the sides smooth, the others feebly keeled. Olive- 

 grey above, the median dorsal zone uniform ; on each side three 

 white longitudinal lines, the interspaces between them blackish 

 brown ; limbs reticulated with blackish ; a white, black-edged lino 

 along the hinder side of the femur and tibia and the anterior side 

 of the latter ; lower surfaces greenish white. 



millim. millim. 



Total length 172 From end of snout 



Head 16 to vent 62 



Width of head 9 Fore limb 22 



From end of snout Hind limb 45 



to fore limb 23 Tail 110 



St. Croix, W. Indies. 



a. $ . St. Croix. Copenhagen Museum [P.J. (As typical of 



A. orstedii.) 



9. Ameiva bifrontata. 



Ameiva bifrontata, Cope, Proc. Ac. Philad. 1862, p. 67. 

 ? Cnemid(jphorus divisus, FischeVf Vcrh. Naturw. Ver. Hamh. (2) iii. 

 1879, p. 99, pi. V. 



Nostril between the two nasals ; five occipitals ; frontal divided 

 transversely, with slight longitudinal keels ; three (or four) supra- 

 oculars, the two (or three) posterior entirely surrounded by granules ; 

 six supraciliaries ; loreal undivided ; seven upper labials ; six lower 

 labials ; chin-shields, one anterior and seven \m\vs ; gular granules 

 enlarged on a band across the throat ; mesoptychial scales about 

 the size of the largest granules. Dorsal granules small, smooth. 

 Ventral plates in ten longitudinal rows, those of the external rows 

 small ; transverse rows, thirty-four. Three enlarged prpeanal 

 plates, forming a triangle. One row of large brachial plates sub- 

 continuous with the antebrachials, which are in two rows ; one 

 row of dilated postbrachials. Femoral plates numerous ; tibials in 

 three rows. Digits moderately serrated ; outer toe not reaching 

 quite so far as inner. Femoral pores fifteen. Caudal scales keeled. 

 Green above ; two light streaks on each side of the body, the upper 

 continued on the tail ; two alternating series of roundish black 

 spots along the back, and another between each pair of light 

 streaks ; hind limbs whitish-spotted ; lower surfaces yellowish. 



