176 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



to above the thigh; a lighter or fainter one from the axilla 

 to the thigh. Belly, hind limbs, and tail inferiorly light gray- 

 ish; breast, throat, and mandible canary yellow, black-spotted. 

 Sides of head orange red ; sides of neck and body red, bright- 

 est anteriorly, lake red posteriorly, on body the scales light- 

 edged, sparingly dark-spotted; a black antehumeral spot." 



2) "Back brownish. Sides of neck reddish with black 

 blotch in front of shoulder. Gular region lemon color with 

 black spots. Lower surfaces pale blue." 



3) "Back light bronze. A row of small black spots runs 

 along the side, starting behind the fore limb and ending a little 

 in front of the hind limb. The folds on the side of the neck 

 are brick red. There is a black antehumeral spot. Throat 

 and chest bright lemon color with black spots. Belly and 

 lower surfaces of hind limbs and tail dull light bluish." 



Variation. — Although the lizards which are here included 

 under one name have been described as several distinct species, 

 we have not been able to find any differences which are con- 

 stant enough to justify us in making any division. The scale 

 counts agree quite closely in specimens from all these islands. 

 Females from South Seymour and Indefatigable islands show 

 most red suffusion about the chin and throat, but red is shown 

 also by specimens from Daphne, James, Jervis, and Albemarle 

 islands. Jervis and Seymour specimens of both sexes may 

 show red. Specimens from Indefatigable Island vary but 

 little. The black dorsal spots may be present or absent on fe- 

 males, but are constant on males.. Gular folds and under 

 surface of shoulders in both sexes may show a faint coloring 

 of red. Interoccipital wider than long. 



South Seymour Island. Females may have indistinct dor- 

 sal markings, otherwise there is little variation. The gular 

 folds and sides of the belly back of the shoulders are distinctly 

 marked with red, those without it being the exception. The 

 males have all the under surface of shoulders and chin dis- 

 tinctly marked with red spotted with black. Throats of fe- 

 males are white, spotted with black. Interoccipital wider than 

 lonsr. 



