Introduction to zoology; a guide to the study of animals, for the use of secondary schools; Year: 1900 (1900s) Authors: Davenport, Charles Benedict, 1866-1944 Davenport, Gertrude Anna Crotty, 1866- Subjects: Zoology Publisher: New York, Macmillan company

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Zaops ostreus syn. Pinnotheres ostreum Identifier: introductiontozo00dave Title: Introduction to zoology; a guide to the study of animals, for the use of secondary schools; Year: 1900 (1900s) Authors: Davenport, Charles Benedict, 1866-1944 Davenport, Gertrude Anna Crotty, 1866- Subjects: Zoology Publisher: New York, Macmillan company London, Macmillian and co., ltd. Contributing Library: MBLWHOI Library Digitizing Sponsor: MBLWHOI Library
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Text Appearing Before Image: FIG. 104. —Platyonichus ocellatus, lady oral). Reduced to one-third. Photo, by W. H. C. P. The fiddler crabs are representative of the square crabs.These are the familiar animals which crowd salt marshesand run sideways to and from their burrows. One claw is much larger than the other.When the crab is disturbed,the large claw is brandishedin a manner which has beenlikened to the movements ofa riddle as one plays uponit. Crelasimus pugnax is themost abundant species, andranges from Cape Cod to the Gulf of Mexico. Togetherwith Cambarus it does much damage by burrowing in thelevees of the Mississippi River (Fig. 100). Text Appearing After Image: FIG. 105. — Pinnotheres oxtreum. X 4From Rathbui). THE CRAYFISH AND ITS ALLIES 111
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