474 bulletin: museum of comparative zoology. 



Remarks: — The description was made of an adult male that meas- 

 m-ed one hundred and eight millimeters from snout to vent. 



Habitat: — Widely distributed throughout Central America from the 

 Isthmus of Darien to southern Mexico. 



List of specimens examined. 



Locality Date Collector Remarks 



Turho, Isth. Darien 1871 G. A. Maack Descrip. 



Matagalpa, Nicaragua 1910 W. B. Rich- 

 ardson 



Matagalpa, Nicaragua 1910 W. B. Rich- 

 ardson 



Matagalpa, Nicaragua 1910 W. B. Rich- 

 ardson 



Matagalpa, Nicaragua 1910 W. B. Rich- 

 ardson 



Honduras 1907 E. C. Post 



Honduras 1907 E. C. Post 



Ameiva undulata undulata (Wiegmann). 



Description: — Adult male; M. C. Z. 7473. Colirna, Mexico; 

 Barbour collection. 



Rostral forming a trifle more than a right angle behind; nostril 

 between the two nasals; anterior pair of nasals in broad contact be- 

 hind rostral; frontonasal longer than wide, separated from the loreal 

 by the posterior nasal; prefrontals fairly in contact with the first two 

 supraoculars; a pair of frontoparietals in contact with the first 

 two supraoculars; a pair of frontoparietals in contact with the third 

 supraocular for nearly its entire length; three subequal occipitals in 

 a transverse row; five and six supraciliaries, the second from the 

 anterior end very much larger than the others; three supraoculars, 

 the first in contact with the two anterior supraciliaries and loreal; two 

 posterior supraoculars separated from the supraciliaries by a single 

 row of granules; last supraocular separated from the outer occipitals 

 by two or three small scales; six and seven supralabials; five and six 

 large infralabials ; between infralabials and chin-shields a wedge of 

 one or two rows of small scales extending anteriorly to the first chin- 

 shield; chin and throat covered with large granules becoming larger 

 towards the centre, a longitudinal row of four larger ones in the mid- 

 region; on the area between the two throat folds two or three rows of 



