It will be seen that, with one exception, all of the characters of _Anniella texana_ have been found in specimens of _A. pulchra_ and _A. nigra_ either as the normal condition or as individual variations. The single exception is the complete division of the frontoparietal plate--a condition which is manifestly anomalous, since this plate has been found partially divided in other specimens. It is evident therefore that _Anniella texana_ must stand as a synonym of _A. pulchra_ Gray. _Anniella texana_ being thus disposed of, one is tempted to treat _A. nigra_ in the same way, regarding it as based merely upon melanistic individuals of _A. pulchra_. This view we certainly should have to adopt if both dark and light colored specimens occurred in the same localities, but I believe this has not yet been shown to be the case. Fischer, to be sure, states that the type of _A. nigra_ came from San Diego, where _A. pulchra_ is especially abundant, but it is quite possible that his specimen did not really originate there. All of the dark specimens I have seen, have been secured on the coast of Monterey County; and, aside from Fischer's, I know of no records of the black _Anniella_ from any other locality, except Cope's[18] reference to specimens from San Francisco. Aside from the type locality, then, it would seem that the dark form has a very limited range, being confined to the southern part of the Pacific Fauna of the Transition Zone. [Footnote 18: Report, U. S. Nat. Mus. 1898 (1900), p. 675.] In a large series of alcoholic specimens from the coast of Monterey County, I find very few showing a style of coloration similar to that of _A. pulchra_. A specimen from San Ardo, in the interior of this county, is typical of _A. pulchra_, but San Ardo is in the Upper Austral Zone. Not more than four or five of the fifty-four specimens from the coast zone could be in the least confusing, and all of these are more deeply pigmented above than is any example of _A. pulchra_ before me. Forty-eight of these specimens were sent me alive, and in that condition exhibited a greater range of coloration than they show since preservation in alcohol, which seems to have intensified their dark pigmentation while dissolving the beautiful yellow of their lower surfaces. When the living lizards were received from Carmel and Point Pinos, they were divided into ten groups according to the intensity of the dorsal pigmentation, and measurements were taken of each specimen in each group. These grades of pigmentation of the living specimens, with measurements in millimeters from snout to anus and anus to tip of tail, are as follows: