BARBOUR AND NOBLE: LIZARDS OF THE GENUS AMEIVA. 467 



Ameiva AMEIVA MACULATA (Fisclier). 



Description:— Aduh female; Mus. of ZooL, Univ. Mich. 45299. 

 La Tigrera, Santa Marta Mts., Colombia; August 4, 1913; A. G. 

 Ruthven. 



Closely related to Ameiva a. ameiva from which it may be readily 

 distinguished by the following characters : — a single pair of fronto- 

 parietals larger than the occipitals which are regular; median occipital 

 as large as the others; preanals granular and numerous, not arranged 

 in a group of some sort as found in Ameiva a. ameiva; four rows of 

 brachials covering the entire upper surface of the arm and gradually 

 varying into the granules of the same; shields of the under side of the 

 thighs smaller, more uniform in size than those of Ameiva a. ameiva; 

 five rows of these tibial shields distally, fifteen proximally; shields 

 of the under side of thighs also smaller and more uniform in size than 

 those of Ameiva a. ameiva; these shields in four rows. 



Coloration: — Dorsal surface olive-gray washed with blue-gray on 

 the sides of body and outer ventrals; a series of white spots regularly 

 arranged in vertical rows covering the flanks ; these white spots indis- 

 tinctly surrounded by black which is somewhat confluent forming 

 vertical bars; in the median region running the length of the back, 

 two rows of faintly indicated black spots; ventral surface whitish, 

 sprinkled with blue-gray on the gulars; outer ventral shields spotted 

 with white and dark blue-gray. 



Variation: — A young male (Mus. of ZooL, U. of M. 45303, from 

 Aguadulce, Santa Marta Mts., collected July 11, 1913, by A. G. Ruth- 

 ven) is similar to the adult in scutation except that the brachials are 

 not so uniformly small. In coloration it differs from the adult by 

 being generally darker. The white lateral spots are less numerous, 

 the median row of lateral white spots is confluent to form a stripe on 

 each side. The ground tone of the flanks is dark gray instead of light 

 blue-gray. The throat, outer ventrals, and some of the median ones 

 spotted with blue-gray of low intensity. 



Remarks: — The description was made of an adult female that 

 measured one hundred and fifteen millimeters from snout to vent. 



Habitat: — We have only seen specimens from the Santa Marta 

 Mts., Colombia, but this species may occur elsewhere and probably 

 does. 



Ameiva ameiva laeta Cope. 



Description:— Aduh female; Type M. C. Z. 10537. Rio Janeiro, 

 Brazil; 1866; by L. Agassiz. 



