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$Unique_ID{QAD00064}
$Pretitle{}
$Title{Genus Arvicola.--Lacepede.}
$Subject{Genus Arvicola. --Lacepede.; Arvicola; }
$Journal{Quadrupeds of North America: Volume I}
$Volume{Vol. 1:340}
$Genus{Arvicola}
$Species{}
$Common_Name{}
$Log{}
Portions copyright (c) Creative Multimedia Corp., 1990-91, 1992
A U D U B O N ' S M A M M A L S
By John James Audubon, F. R. S., &c. &c.
AND
The Rev. John Bachman, D. D., &c. &c.
-------------------------------------------
VOL. I.
--------------------------------
GENUS ARVICOLA.--LACEPEDE.
DENTAL FORMULA.
2 0-0 3-3
Incisive -; Canine ---; Molar --- = 16.
2 0-0 3-3
Incisors, in the upper jaw, large and cuneiform; in the inferior jaw,
sharp.
Molars, compound, flat on their crowns, the enamel forming angular ridges
on the surface.
Fore-feet, having the rudiments of a thumb, and four toes, furnished with
weak nails.
Hind-feet, with five toes, hairy on their borders, armed with claws.
Ears, clothed with hair; tail, cylindrical and hairy, shorter than the
body. From eight to twelve pectoral and ventral mammae.
The old family of Mus has undergone many subdivisions. It formerly
included many of our present genera. The Arvicolae, by the structure of their
teeth, and the hairy covering of their ears and tail, the latter being besides
short, may advantageously be separated from the rest.
They burrow in the earth, and feed on grain, bulbous roots and grasses;
some are omnivorous, they do not climb, are not dormant in winter, but seek
their food during cold weather, eating roots, grasses, and the bark of trees.
There have been about forty species of Arvicola described; some of these,
however, are now arranged under other genera. Some of the species are found in
each quarter of the world: about seven species inhabit North America.
The generic name is derived from two Latin words, arvus, a field, and colo,
I inhabit.