Bulletin of the Scientific Laboratories of Denison University. 
Vol. XI. Article VI, with Plate XIV— XXIV. January, 1899. 
*NOTES ON A COLLECTION OE LIZARDS FROM 
NEW MEXICO. 
By C. L. Herrick, John Terry and H. N. Herrick, Jr, 
The following notes are based on the collections of lizards 
made by the voluntary geological and natural history survey of 
the University of New Mexico during the season of 1898, with 
such additions as were possible from the collections made by 
the senior writer during several years previous. The area cov- 
ered is chiefly within the Rio Grande valley between Albuquer- 
que and Socorro and the area of the field-work in geology re- 
ported elsewhere in this volume. For specimens from Gallup 
we are indebted to Mr. Wallace Bowie, and for a few specimens 
from Magdalena to Mr. James Fitch. The object in presenting 
these fragments is simply to facilitate the prosecution of this 
work during the coming seasons and to give to the residents of 
the territory who may be willing to assist in it the basis for the 
recognition of the commoner species. None of our lizards are 
venomous and they are mostly to be ranked with the harmless, 
if not actively helpful, inhabitants of the plains and mountains. 
In many cases they are marvelously abundant, especially is 
this the case with the Holbrookias and smaller honed toads. 
The latter pass below ground in October and do not reappear 
till spring, while the smaller lizards may appear during the 
warmer parts of the day throughout most of the winter. They 
are, for the most part, subject to a great deal of individual and 
seasonal variation and many are provided with a remarkable de- 
gree of color adaptability in adjustment to the environment, so 
that, for example, species from the open sands are entirely dif- 
ferent in markings and color scheme from those of more pro- 
=-‘Read before the Denison Scientific Association, December 24, 1898. 
