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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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: FK;. 21-4. — Morone americana, the white perch. The fish is searching for foodalong the bottom of the aquarium, an instinct which it shows in nature also.About one-third nat. size. Photo, of living animal by Dr. R. W. Shufeldt,from Bull. U. S. Fish Com., 1899. The darters are spiny-rayed fishes of small size, from fourto seventeen centimetres long, brightly colored, and withwell-developed pectoral fins. They live in clear streams,half concealed under stones, and are most abundant in theMississippi drainage basin. , the pupil of the eye ; ywvia, angle. 2Fig. 213. THE SMELT AND ITS ALLIES 235 The perches are a widespread family, represented in thiscountry chiefly by the common yellow perch of the East,the u wall-eyed pike of the Great Lake region, and thewhite perch of the Atlantic coast (Fig. 214). These fishhave an oblong, compressed body covered with smallscales ; they are highly rapacious, and are believed to be Text Appearing After Image: FIG. 215. — Eupomatis yibbosus, the common sunfish. Two-thirds uat. size.Photo, of living animal by Dr. R. W. Slmfeldt, Bull. U. 8. Fish Com., 1899. destructive to the young of other species of fish. Theyare esteemed as food, although fortunately not to theextent of annihilation. The sunfishes1 have a percoid form, but have only onedorsal rln instead of two. They live in fresh water, have 1 Fio-. 215. 236 ZOOLOGY rapacious habits, are brilliantly colored, and build nests inthe sand, which both male and female watch over and defend with courage. Some speciesliving in the Great Lakes are knownas black bass or rock bass. Thesmall New England species, with thebrilliant red edge to the operculum,is called pumpkin-seed. The toadfishes (Fig. 216) arerepresented in our faunas by acommon species which lives understones in harbors and attaches itseggs to the under side of stones. Itis a vigorous fighter. The sculpin (Fig. 217) is closelyrelated to the toadfish. Like thelatter it has a broad h
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