File:Four feet, wings, and fins (1879) (14781305082).jpg

Identifier: fourfeetwingsfin00mask (find matches)
Title: Four feet, wings, and fins
Year: 1879 (1870s)
Authors: Maskell, A. E. Anderson- Mrs
Subjects: Zoology
Publisher: Boston, D. Lothrop and Co
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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are Articulates, because they are jointed, 487 CATCHING LOBSTERS. said Frank, and they belong to the water-division of Articulates, because they breathe by means oftheir gills, and not through holes in their sides likeinsects. Articulates are divided into how many classes ? Five: insects, spiders, myriapods, crustaceans andworms, answered May. What are myr pods ? asked Rose. Ive fordot ? Dont you remember the long worms with somany legs ? asked May. The centipede ? asked Rose. ^ Yes, from the word cent, a hundred, and pede^foot—the worm with a hundred feet. Now I wishto know to which one of these classes lobsters andcrabs belong ? To the Crustaceans, of course, said May. Iknow from crust, the first part of the word; forlobsters and crabs are covered with a hard crust. Write this: Crustaceans are divided into Deca-pods, Tetradecapods, Entomostracans, Cirripeds andRotifiersr What jaw-breakers ! exclaimed Frank, shrug-ging his shoulders. Decapods, continued Grace, have ten feet with 488
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Hammee-headed Shark, CATCHING LOBSTERS. claws, and are of large size. Teiradecapods^ havefourteen feet, and are not more than one inch inlength. Entomostracans, have an irregular numberof legs, and are either large or small. Cirripeds,have shells like mollusks, but have jointed legs aswell as a body. From the opening of the shell, theanimal throws out its legs looking like a delicatecurl, whence the name of the group. Rotifiers, areanimalcules destitute of limbs, and moved by cilia. What are Animalcules? asked May Very tiny animals, indeed. So small as to bescarcely visible to the naked eye. Some of themhowever, are as large as a grain of sand. What are Cilia ? Cilia, are little hairs which edge the wheels ofRotifiers; for, you see, these little animals havetwo horns which they thrust out when hungry, andon the edge of each horn is a wheel — but we haveno more time for this at present. We were talkingabout crabs and lobsters — large Crustaceans. Now,to what order of Crustaceans do

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