The Death Valley Expedition; A Biological Survey of Parts of California, Nevada, Arizona, and Utah Volume 2

The Death Valley Expedition; A Biological Survey of Parts of California, Nevada, Arizona, and Utah Volume 2

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1893 edition. Excerpt: ...Valley. It is common in Panamiut, Death, and Mesquite Valleys, ranging from the latter through Crapevine Cation to Sarcobatus Plat. In Nevada it is common in the Amargosa, Pabrnmp, and Vegas Valleys, at the Bend of the Colorado, in the valleys of the Virgin and Muddy, and reaches Oasis, Pahranagat, Desert, and Meadow Creek Valleys, and from the latter ranges up among the junipers on the west slope of the Juniper Mountains, to an altitude of 1,980 meters (6,500 feet). In Utah it is common in the Lower Santa Clara Valley, and thence ranges northward to the Upper Santa Clara Crossing, but disappears before reaching Mountain Meadows. The food of Onemidophorus tigris consists of grasshoppers and other insects--no leaves or flowers were found in the numerous stomachs examined.--C. H. M. List of specimenn of Ciiemidopltorus tigris. CnemidophoniB tigris undulatus (H.illow). Ten specimens from the west slope of the Sierra Nevada differ so much from the desert specimens that 1 must regard them as entitled to a separate trinominal appellation. So far as I can see there is no structural difference, nor is there a very radical difference in the color or the pattern. The latter is considerably coarser, better defined, and deeper in color. The difference between the two forms in this respect is particularly well marked on the sides of the head, the dark marks being nearly obsolete in the desert form, while in the latter the slatecolored suffusion on the under side seems to be the rule. I have yet to see a specimen from the great interior valley of California in which it is present. As to the name of this form, I have to remark that the specimens have been carefully compared ami found identical with Hallo-well's type specimen. It will be observed that in more

Product details

  • Paperback | 154 pages
  • 189 x 246 x 8mm | 286g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236610830
  • 9781236610836