. Exploration and survey of the Valley of the Great Salt Lake of Utah : including a reconnoissance of a new route through the Rocky Mountains. . nd Holbrookia. The former genus it resembles in having theupper surface of the head covered with similar scales, and in beingprovided with auditory apertures. On the other hand, the body iscovered with scales, like those in Holbrookia, while on the tail theyare much larger than in any of the above genera, thus contrastinggreatly with those of the back. The genus Uta, moreover, has asubgular fold of skin, constituting a neck-ring similar to that inHolb


. Exploration and survey of the Valley of the Great Salt Lake of Utah : including a reconnoissance of a new route through the Rocky Mountains. . nd Holbrookia. The former genus it resembles in having theupper surface of the head covered with similar scales, and in beingprovided with auditory apertures. On the other hand, the body iscovered with scales, like those in Holbrookia, while on the tail theyare much larger than in any of the above genera, thus contrastinggreatly with those of the back. The genus Uta, moreover, has asubgular fold of skin, constituting a neck-ring similar to that inHolbrooMa. Its elongated tail would recall to mind the genus Cro-taphytus, were not the palatine teeth absent. Femoral poresexist, while anal ones are wanting. Besides the species described below, this genus embraces twoothers, one of which is entirely new to science, and was sent in byColonel J. D. Graham from the boundary-line, and which we callUta 07nata; while the other was dscribed as a Sceloporus, and firstas a mere variety of S. grammicus, afterward, however, separatedunder the specific name of >S^. microlepidotus. The minuteness of.


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Keywords: ., bookauthorbairdspencerfullerton, bookcentury1800, bookdecade1850