614 



REPOKT OF NATIONAL MUSEUM, 1902. 



Copo'.s vai'iety ami is onl}^ the young of the present species, and as 

 his paper clearly has the priority over that b}" Reinhardt and Luetken 

 (in fact they refer to it themselves) the name given by him must take 

 precedence over A. riisei. 



Description.— Adult; U.S.N.M. No. 27221; Utuado, Porto Rico, 

 April 7, 1900; L. Stejneger collector. — Rostral forming an acute angle 

 behind; nostril between two nasals; anterior pair of nasals broadly in 

 contact behind rostral; frontonasal longer than wide, in contact with 

 nasals, loreal and prefrontals; prefrontals broa^y in contact; frontal 

 pentagonal, in contact with first and second supraoculars, just touching 

 the third; a pair of frontoparietals in contact with third supraocular 

 anteriorly; five occipitals in a transverse row, the median largest; six 

 or seven superciliaries; four supraoculars, the first in contact with two 

 anterior superciliaries, and separated from the loreal by the first of 

 the latter; three posterior supraoculars separated from superciliaries 

 by a double row of granules; last two supraoculars separated from 

 outer occipitals by three rows of small scales or granules; loreal undi- 

 vided; six large supralabials, first in contact with 

 both nasals, second with posterior nasal and loreal; 

 temples granular surrounded by larger scales; 

 mental followed by an unpaired postmental; five 

 large infralabials; first pair of chin-shields sepa- 

 rated by granules of the chin; between infrala- 

 bials and chin-shields a wedge of one to three 

 granules extending anteriorly nearly to the post- 

 mental; chin and throat covered with minute gran- 

 ules of slightly varying size, a faintly indicated 

 band of slightly larger ones extending across the 

 middle in which again the median ones are forming an ill-defined cen- 

 tral group of somewhat enlarged scales; on the portion between the 

 two throat folds (the so-called mesopthvchium) several rows of larger 

 hexagonal scales; back, sides, and upper side of limbs covered with 

 very fine uniform granules; underside of body with ten longitudinal 

 and thirty-five transverse rows of square plates; three large preanal 

 shields forming a triangle; on the lower arm a series of very wide 

 plates (ante])rachials) decreasing in width toward the elbow joint by 

 being dissolved into several rows of smaller hexagonal scales; on the 

 upper arm a similar but narrower series of plates (brachials or 

 humerals) not continuous with the antebrachial series; on the poste- 

 rior side near the elbow a small group of enlarged scales (postbra- 

 chials); underside of thighs covered with six or seven series of hexago- 

 nal plates, of which three rows are considerably larger than the others; 

 fourteen to fifteen femoral pores; on the underside of tibia two rows 

 of plates, two of the plates of the outer row being enormously enlarged; 

 upper side of wrist with regular series of transverse plates correspoud- 



FiG. 66.— Ameiva exul. 

 2 X natural size. Dorsal 

 view of portion of tail. 

 No. 27221, U.S.N.M. 



