IN THE MUSEUM OF COMPARATIVE ZOOLOGY. 3 



shields arranged in a triangle, with a small plate wedged 

 behind the suture of the posterior two, and the triangle it- 

 self arched around in front by about eight small plates of 

 which the posterior are the larger. Three or four rows of 

 medium-sized brachials, subcontinuous with the three or 

 four rows of antebrachials ; postbrachials in three or four 

 rows, smaller than brachials. About ten rows f femoral 

 plates, and five of tibials. Femoral pores sixteen to sev- 

 enteen . Digits feebly serrated ; fifth toe much shorter 

 than inner. Caudals keeled. 



Back, brownish olive, with closely placed spots or ver- 

 miculations of brown ; flanks more olive, with or without 

 dark-edged white spots ; outer ventrals and thighs with 

 large spots of white, or of black, or of both. Near the 

 vent the lower surface is yellowish. The throat and chin 

 are black on all except the young. 



Small ones have a dark band along each side of the 

 body at the upper edge of flank and tail ; on the body 

 near each edge of this band there is a series of small 

 round white spots. Below the band the flank is lighter. 

 On the front edges of the outer ventrals, on the femorals 

 and on the base of the tail, there are black spots, and the 

 throat is olive. 



Hab. Trinidad. 



AMEIVA AQUILINA. 

 A. surinamensis var. n. 



Nostril between the two nasals ; five occipitals ; four 

 supraoculars, posterior two separated from other head 

 shields by granules, anterior one in contact with supracil- 

 iaries ; loreal undivided ; labials six to seven. Lower 

 labials six to seven ; submentals one anterior and four or 

 five pairs ; gular granules enlarged in a band, of eight se- 

 ries or more, across the throat ; behind the gulars there 



