The Effect of Temperature on Thyroid Histology and Survival in the Lizard, Sceloporus occidentalis

The disalignment (73 and 78 percent) in two specimens from Bridgeport, Vermont, (collection No. 24) suggests that marginata exists in the Lake Champlain drainage. In summation, the eastern edge of the region of intergradation probably lies along the eastern part of the Lake Champlain drainage area in northern New England, and along the eastern part of the Hudson River drainage area in middle and southern New England.