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 examaned. 
No. of 
M.C.Z. _ speci- : 
No. mens Ages Sexes Locality Date Collector Remarks 
10536-7 2 ad. Q Rio Janeiro, Brazil 1866 L. Agassiz Types. 
Descrip.. 
4250 3. ad. both Goyaz, Brazil 1867 S. Honario  Deserpi. 
1367 dad: Q@ Rio Janeiro, Brazil 1866 L. Agassiz 
3028 2 ad. both Minas Geraes, Brazil 1865 L. Agassiz 
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 differs 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 1 in vertical rows. 
The characteristic feature of this coloration is that each granule isa 
entirely of one color, the effect being a “pepper and salt” mixture. 
