. Animal communities in temperate America : as illustrated in the Chicago region; a study in animal ecology. Animal ecology; Zoology -- Illinois Chicago. SWIFT STREAMS 97 year to year. On one occasion the surface of the rocks and stones in Thorn Creek was almost covered with sponge, and while some sponge is always to be found, we have not seen it so abundant again. Polyzoa. Representative Fishes of a Rapids Community Fig. 44.—The banded darter {Etheostoma zonale); length 2 in. (from Forbes). Fig. 45.—The rainbow darter (Etheostoma coeruleum); length 2 in. (from Forbes). Fig. 46.—Black-sided da
. Animal communities in temperate America : as illustrated in the Chicago region; a study in animal ecology. Animal ecology; Zoology -- Illinois Chicago. SWIFT STREAMS 97 year to year. On one occasion the surface of the rocks and stones in Thorn Creek was almost covered with sponge, and while some sponge is always to be found, we have not seen it so abundant again. Polyzoa. Representative Fishes of a Rapids Community Fig. 44.—The banded darter {Etheostoma zonale); length 2 in. (from Forbes). Fig. 45.—The rainbow darter (Etheostoma coeruleum); length 2 in. (from Forbes). Fig. 46.—Black-sided darter (Hadropterns aspro); length 3-4 in. (from Forbes). are usually present under the stones. Such animals depend upon foods in solution and small floating plants and animals. In addition to those rapids which have large rocks, are those in which the bottom is of coarse sand and gravel, with only a few small 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 Shelford, Victor E. (Victor Ernest), b. 1877; Geographic Society of Chicago. Chicago, Ill. : Published for the Geographic Society of Chicago by the University of Chicago Press
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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectanimalecology
