. Exploration and survey of the Valley of the Great Salt Lake of Utah : including a reconnoissance of a new route through the Rocky Mountains. . APPENDIX C. REPTILES. 343 figures, all of wliicli are drawn of natural size. The tail is of thelength of the body, the head excluded. The latter is oval, broaderthan high; its summit being convex, and its snout truncated. It iscovered with small, irregular, and polygonal plates, larger on themiddle line of the skull than above the eye, the nose, and the is a supraorbital carina, with small elongated plates,scarcely to be seen with the naked


. Exploration and survey of the Valley of the Great Salt Lake of Utah : including a reconnoissance of a new route through the Rocky Mountains. . APPENDIX C. REPTILES. 343 figures, all of wliicli are drawn of natural size. The tail is of thelength of the body, the head excluded. The latter is oval, broaderthan high; its summit being convex, and its snout truncated. It iscovered with small, irregular, and polygonal plates, larger on themiddle line of the skull than above the eye, the nose, and the is a supraorbital carina, with small elongated plates,scarcely to be seen with the naked eye. The infraorbital platesare less numerous, but longer. The eyes occupy the middle of thelength of the head. The eyelids are bordered by a row of minuteand pointed plates, forming a serrated edge. The nostrils arenearer the end of the snout than the eye. The angle of the mouthextends to the posterior rim of the orbit. The upper jaw is bor-dered with a row of small, very elongated plates, obliquely imbri-cated. Margining the lower jaw there are two rows of small an-gular plates, the larger ones being at the angle of the is


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Keywords: ., bookauthorbairdspencerfullerton, bookcentury1800, bookdecade1850