File:Image from page 260 of "Introduction to zoology; a guide to the study of animals, for the use of secondary schools;" (1900) (14781911671).jpg

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. 22-». — Anicairus iirhtilosiix, the catfish. About one-half nat. size. Photo,of living animal by Dr. R. AV. Shufehlt, Bull. U. S. Fish Com., 1899. THE KNELT ANT) ITS ALLIES 241 pecies is Ameiurus1 catus? the bull-head or horn-pout.3t was with reference to this species that Thoreau wrotehat they are a bloodthirsty and bullying race of rangers,ahabiting the river-bottoms, with ever a lance at rest andeady to do battle with their nearest neighbor. Thetiff, jagged rays of the pectoral fins can make severevounds. The great catfish of the Mississippi River,vhich may weigh up to 90 kilogrammes, is known asimeiurus lacustris.^ This, as well as most other species•f catfish, is much prized as food.

Text Appearing After Image: FIG. 224. —The brook sucker. After Goode. The suckers are characteristic North American fish,ibundant in every creek, and consequently known to everyover of woods and brooks. Characteristic is the form ofips, which are thick and drawn down at the corners.5 Theyire rather sluggish fishes, and feed on small aquatic insectstnd suck up mud. They are not generally esteemed asood, inasmuch as their flesh is coarse and very full of)ones. In the Mississippi valley, however, they are soibundant and large that they are of some commercialmportance. not curtailed. 2 Cat. 3 Fig. 223. Living in lakes. 5 Fig. 224. R 242 ZOOLOGY The term minnow is applied to two distinct families ofsmall fish. One of these is also known as killifish. Thekillifish have a broad head covered with scales, and havewell-developed teeth in the month. They occur in schoolsin shallow water on the shore, and ascend streams to theirsonrce. They are carnivorous, and feed at the surface.In one species from the Southern coast, H

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