. Biological survey of Texas : Life zones, with characteristic species of mammals, birds, reptiles, and plants. Reptiles, with notes of distribution. Mammals, with notes on distribution, habits and economic importance. Zoology Texas. Oct., 1905.] MAMMALS. 115 Brazos), Sour Lake, Port Lavaca, Seguin, and San Antonio are fairly typical, although they become slighth^ paler at San Antonio. Along the Gulf coast and lower Eio Grande they become still paler without reaching the extreme of the light gra}" herland'u'r'/. Althouo-h not often seen the cotton rats are usualh^ common, and at times the
. Biological survey of Texas : Life zones, with characteristic species of mammals, birds, reptiles, and plants. Reptiles, with notes of distribution. Mammals, with notes on distribution, habits and economic importance. Zoology Texas. Oct., 1905.] MAMMALS. 115 Brazos), Sour Lake, Port Lavaca, Seguin, and San Antonio are fairly typical, although they become slighth^ paler at San Antonio. Along the Gulf coast and lower Eio Grande they become still paler without reaching the extreme of the light gra}" herland'u'r'/. Althouo-h not often seen the cotton rats are usualh^ common, and at times they become excessively numerous, living under cover of tall grass and weeds, in meadows, around the edges of fields, and along the banks of streams and ditches. They live in bulky nests of grass. Fig. 17.—Distribution areas of cotton rats (genus Sigmodon). on the surface or in underground burrows, and make numerous long runways under cover of fallen* grass and dense vegetation. Appar- ently they breed rapidly. Gaut records a female containing 8 em- biwos. For food the}^ cut the green stems of grass and various plants along their runways—eating stems, leaves, and seeds—and along the edges of grain fields they gather to feed on both green and ripening grain. The amount of damage they do depends on their abundance and the kind of crop attacked. Near Seguin, in November, 1904, I found the cotton rats numerous. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bailey, Vernon, 1864-1942; Merriam, C. Hart (Clinton Hart), 1855-1942; United States. Division of Biological Survey. Washington : G. P. O.
Size: 1595px × 1566px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbaileyvernon18641942, bookcentury1900, bookdecade1900
