CHAPTER I

AN INTRODUCTION TO THE STUDY OF MAMMALS

AN INTRODUCTION

TO THE STUDY OF

MAMMALS

LIVING AND EXTINCT

BY

WILLIAM HENRY FLOWER

C.B., F.R.S., D.C.L., LL.D., P.Z.S., F.L.S., F.G.S., &c.

DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS, BRITISH MUSEUM

AND

RICHARD LYDEKKER

B.A., F.G.S., F.Z.S., &c.

[Illustration: THE WOOLLY OPOSSUM]

LONDON: ADAM AND CHARLES BLACK

MDCCCXCI

PREFACE

One of the greatest difficulties experienced by all who undertake a

work of this nature, not professing to be an exhaustive treatise on

the subject with which it deals, is to determine the amount of detail

desirable to be introduced to meet the requirements of the ordinary

student, without rendering it too bulky or costly for general use. The

experience of those who endeavour to profit by the book can alone decide

how far the authors have succeeded in this respect. It will be observed

that in many instances certain better-known or more interesting members

of the class have been described at considerable length, while it has

been necessary to treat others with much greater brevity.

With regard to the references to the literature of the various groups

treated of, it has been the endeavour of the authors to make a selection

of such memoirs and works as are likely to prove most valuable to the

student for the amount of original information which they contain, and

more especially of those giving full bibliographical data up to the

time of their publication, the repetition of which has been considered

unnecessary.

In a few instances new generic terms have been introduced to replace

some which were already occupied; these have been proposed by Mr.

Lydekker, and should be quoted as his.

The work is based largely upon the article “Mammalia,” together with

forty shorter articles, written by the senior of the two authors for

the ninth edition of the Encyclopædia Britannica. The account of the

orders Rodentia, Insectivora, and Chiroptera contributed to the article

“Mammalia” by Dr. G. E. Dobson, F.R.S., as well as the articles “Mole,”

“Shrew,” and “Vampyre,” by the same writer, the articles “Marmot,”

“Mouse,” “Opossum,” “Phalanger,” “Rat,” “Squirrel,” “Stoat,” “Vole,” and

others, by Mr. Oldfield Thomas, and likewise the article “Ape,” by Dr.

St. G. Mivart, F.R.S., have also been made use of to a greater or less

extent. The best thanks of the authors are due to these three gentlemen

for freely permitting the incorporation of their own work in the present

volume.

Mr. Lydekker undertook the task of arranging the various articles in

their proper sequence, selecting from these such portions as seemed

suitable, filling up the gaps, and adding new matter where necessary; a

large amount of this new matter treating of the extinct forms, and also

of the group Artiodactyla.

The subsequent revision, both before being sent to the printers, and also

when passing through the press, has been made by both authors, who are

thus jointly responsible for the whole work.

The illustrations are to a great extent those prepared for the various

articles in the Encyclopædia, but many have been added—some drawn

expressly for the work, and some borrowed from other publications. For

most of the latter the authors take this opportunity of expressing their

thanks to the Publication Committee of the Zoological Society of London,

as well as to the individual writers in whose works they first appeared.

The authors have further much pleasure in acknowledging the ready and

obliging way in which Mr. Oldfield Thomas has, throughout the progress of

the work, placed his extensive knowledge of the group of animals of which

it treats at their disposal.

LONDON, _March_ 1891.

CORRIGENDA.

Page 280, _for_ Chæropsis _read_ Chœropsis.

Page 292, _for_ Chæropotamidæ and Chæropotamus _read_ Chœropotamidæ and

Chœropotamus.

Page 590, _for_ Pæcilogale _read_ Pœcilogale.

=Transcriber’s Note:= The corrections have been applied.

CONTENTS

PAGE

CHAPTER I

INTRODUCTORY REMARKS 1

Use of term mammals, 1; Characters of mammals, 2;

Development of young, 3; Size of mammals, 4; Uses and

products of mammals, 4.

An introduction to the study of mammals living and extinct · 第 1 / 29 章