. Elementary lessons in zoölogy : a guide in studying animal life and structure in field and laboratory. Zoology. 126 CRUSTACEANS. hol, and examine the gills (which are beneath the abdomen in this crustacean) and the mouth parts. Then remove all the appendages of the body, arrange them in order in glycerine upon a slide, cover with another slide, and make a serial drawing of them as seen, magnified 10 to 25 diameters. Make a larger drawing of the terminal segments of one of the first pair of thoracic legs, and explain the action of these parts. THE CYCLOPS. Haunts and Habits. — The water of an
. Elementary lessons in zoölogy : a guide in studying animal life and structure in field and laboratory. Zoology. 126 CRUSTACEANS. hol, and examine the gills (which are beneath the abdomen in this crustacean) and the mouth parts. Then remove all the appendages of the body, arrange them in order in glycerine upon a slide, cover with another slide, and make a serial drawing of them as seen, magnified 10 to 25 diameters. Make a larger drawing of the terminal segments of one of the first pair of thoracic legs, and explain the action of these parts. THE CYCLOPS. Haunts and Habits. — The water of an aquarium in which aquatic plants have been growing is almost certain to contain this animal. It is large enough to be seen without a lens (about a twenty-fifth of an inch long). It appears as a white speck in the water, is very active, and swims with a peculiar jerky movement. Each large female cyclops will usually carry a pair of egg sacs attached at the sides of the abdomen. External Features. — Take up half a dozen such specimens with a drop- ping tube, place them in a watch glass with water, and add a little ether. Place them under the miscroscope, and, having found one that presents a good dorsal view, study it with low power, to make out the following points as to its general form : — 1. An oval bodg^ tapering posteriorly. 2. A dome-shaped carapace, covering the front of the. Cyclops (x 120).. 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 Needham, James G. (James George), 1868-1956. New York : American Book Company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1896
