North American Fauna, Ausgaben 1-4Fish and Wildlife Service, 1889 |
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Häufige Begriffe und Wortgruppen
anteriorly antitragus Arizona Arvicola Baird basilar length bicolor border of parietal breadth to basilar broad californicus characters.-Size color Color.-Above coronoid process Coues Cranial and dental Cricetodipus dry skin dusky ear from crown FAUNA flavus Foramen magnum fore legs genus Grand Cañon hairs HART MERRIAM head and body Hesperomys hind foot incisive foramina incisor intermedius interparietal Kendrick Peak last molar lateral stripe length of Hensel length to breadth leucogaster Little Colorado longer than head longimembris lower molar lower premolar mammals mandible mastoid mastoid breadth nasal branch olivaceus Onychomys Painted Desert paradoxus parietal longest pelage pencil penicillatus Perognathus fasciatus Phenacomys pine piñon posterior posteriorly process of mandible ratio of length ratio of mastoid region rump San Francisco Mountain side skull species Spilogale spinatus subspecies tail vertebræ taken in flesh Tamias Type U. S. National Museum upper molar series Vernon Bailey whitish zone zygomatic arches
Beliebte Passagen
Seite 28 - Comean, who lives on the north shore of the St. Lawrence, near the point where the river widens into the gulf, has recently been fortunate enough to witness the habit in question. He writes: " On the 30th of April, 1884, I saw a star-nosed mole swimming under water like a muskrat. It swam directly across a small brook, keeping near the bottom, and moving very fast. The brook was about six feet wide and two...
Seite 93 - They wake up very early in the morning and go to water at daylight no matter how cold the weather is. During the month of August, and particularly the first half of the month, when the mornings were often frosty, hundreds of them came to the spring to drink and bathe at break of day. They were like a swarm of bees, buzzing about one's head and darting to and fro in every direction. The air was full of them. They would drop down to the water, dip their feet ami bellies, and rise and shoot away as...
Seite 69 - ... NOTES AND NEWS THE American Philosophical Society will procure a portrait of the late Edward C. Pickering to be hung in the hall of the society " as a token of the affectionate regard in which he was held by his fellow members." Professor Pickering was a vice-president of the society from 1909 to 1917. DR. JA ALLEN, curator of mammals in the American Museum of Natural History, New York City, has been elected the first honorary member of the American Society of Mammalogists and the only person...
Seite 104 - ... systems, at least in the northern portion of the territory, and I do not believe that both will be found anywhere in the same locality. There can consequently be no doubt that both forms are subspecies of the same species, but whether the form now named for the first time should receive a trinominal appellation or not is quite another thing, depending, according to the code of zoological nomenclature adopted by the American Ornithologists...
Seite 21 - Oolumbia, and its effects upon the climate must have been felt throughout the United States and even into Mexico, The advance of the glacial period was so gradual that plants as well as animals had time to escape by extending their ranges southward, and during the return movement were enabled to keep pace with its slow retreat. Had either the process of refrigeration or the return of heat taken place more rapidly, most of the forms of life inhabiting the northern parts of the globe would have been...
Seite 9 - Mountains, the Cascades, and the Sierra Nevada, and occur also in the great northern spruce forest of Canada. It is well known that the northernmost part of our own continent consists of bare rock and frozen tundras. There are no trees along the sea edge of Labrador or Hudson Strait, or along the coast region of arctic America from Boothia Felix to Alaska, but just south of this region a large forest begins which has been called the
Seite 7 - One or more of them have been found at each of the following localities : British Columbia, Unalaska, Bering Strait, Kotzebue Sound, Point Barrow, Melville Island, Back's Great Fish River, Hudson Bay and Strait, Labrador, Baffin Bay, Greenland, Iceland.
Seite 47 - ... border straight in lower twothirds, upper third convex, tip evenly rounded ; outer border with a distinct rounded lobule at base, above which it is convex on the lower two- thirds, and then rapidly becomes narrower and is sinuate and slightly concave on the upper third. Thumb very short, only about half as long as foot, and armed with a sharp and strongly curved nail. Foot of...
Seite 23 - S. sempervirens) have no nearer relatives than the bald cypress (Taxodium) of the Gulf States and a related species from China (formerly recognized generically under the name Glyptostrobus). This was pointed out many years ago by Dr. Asa Gray in connection with the circumstance that the ancestors of these trees once ranged throughout the boreal regions of the world. A fossil species (Sequoia langsdorfii) closely related to the California redwood has been found in Spitsbergen, Iceland, Greenland,...
Seite 37 - In short, the Grand Canyon of the Colorado is a world in itself, and a great fund of knowledge is in store for the philosophic biologist whose privilege it is to study exhaustively the problems there presented.