468 



bulletin: museum of comparative zoology 



Related to A. a. ameiva but readily distinguished from it by its large 

 dorsal granules, at least three or four times larger than those of 

 Ameiva a. ameiva; the scales of the throat and neck also somewhat 

 larger; instead of forming a median group of enlarged scales, the 

 gulars are arranged in a distinct band across the throat, the scales of 

 which, largest in the mid-region, rapidly diminish in size anteriorly. 



Coloration: — Pattern more like A. a. petersii than A. a. ameiva. 

 General tonality green; a sprinkling of a few dark spots dorsally; on 

 each side a trace of a broad dark band, the upper and lower margins 

 darkest; in the lower dark margin a very sharp and characteristic 

 white line running the length of the body; in the upper margin of the 

 dark band a faint white line; flanks and outer ventrals faintly spotted 

 with dark brown, the latter edged with white. 



Variation: — An adult male, M. C. Z. 4250 (Goyaz, Brazil, collected 

 1867 by Senor Honario) is similar to the female except that the upper 

 white line is absent. On each flank there is a series of white spots 

 somewhat irregularly arranged in vertical rows. 



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

 measured one hundred and twenty-five millimeters from snout to vent. 



Habitat: — Southern Brazil as far north as Minas Geraes, and as 

 far west at least as Goyaz. 



List of specimens examined. 



Ameiva ameiva praesignis (Baird and Girard). 



Description: — Adult male; M. C. Z. 9926. Panama (near city); 

 1904; W. W. Brown, Jr. 



Related to Ameiva a. ameiva from which it diflfers considerably in 

 coloration and slightly in scutation. Unlike any of the other races of 

 Ameiva a. ameiva, the ground tone of the dorsal surface is pale yellow- 

 brown of a low intensity becoming darker posteriorly. On each flank 

 there is a series of pale straw-color spots arranged in vertical rows. 

 The characteristic feature of this coloration is that each granule is 

 entirely of one color, the effect being a "pepper and salt" mixture. 



