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
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, 1866-1944Davenport, Gertrude Anna Crotty, 1866-Subjects: ZoologyPublisher: New York, Macmillan companyLondon, Macmillian and co., ltd.Contributing Library: MBLWHOI LibraryDigitizing Sponsor: MBLWHOI Library View Book Page: Book ViewerAbout This Book: Catalog EntryView All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: c-.vac FIG. 2S. âEiif/lena viriilis, a lash-animalcule. A-D, four views illustratingthe characteristic movements; E and //, enlarged views of adult; F, out-line of anterior end further enlarged ; G, resting stage ; cy, cyst; .//, liagel-huu; m, mouth; nu, nucleus; w, gullet; pg, pigment spot; /â¢, reservoir.After Kent and Klebs. ~~| organism, half animal and halfplant, and forming a sort of con-necting link between the Pro-tozoa (or one-celled animals) andthe multicellular higher organ-isms. Volvox occurs abundantlyin our ponds and gets its namefrom its manner of revolving in FIG. 209. -- Volvox globator. t]ie water (Fig. 209).Much magnified. Photo. Y, .â¢â¢.â¢â¢â¢. Â£ of the living animal. Very different in habitat irom Text Appearing After Image: 1 From volvere, to roll. THE PAEAMECIUM AND ITS ALLIES 227 the foregoing are the Sporozoa,1 which are minute rod-like organisms, occurring as parasites in the body ofvarious kinds of higher animals, especially in the food-tract. They increase by transverse division of their rod-like bodies; but periodically they encyst, and divide intonumerous spores, which, under favorable conditions, areset free in great numbers. Note About Images 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 work.