THE
STRUCTURE AND HABITS
OF
SPIDERS.
BY
J. H. EMERTON.
ILLUSTRATED.
BOSTON:
S. E. CASSINO & CO., PUBLISHERS.
1883.
COPYRIGHT.
By S. E. CASSINO.
1878.
Electrotyped
By C. J. Peters & Son,
Boston.
PREFACE.
The object of this book is to give a plain account of the best knownhabits of spiders, and as much of their anatomy and classification asis necessary to understand these habits. The portion on the spinningand flying habits is copied chiefly from Blackwall and Menge; thaton the trap-door spiders from Moggridge; and the habits of Nephilaand Hyptiotes, from Wilder. The observations of these authors havebeen repeated as far as possible, and some changes and additions madeto their accounts of them. The numerous stories of deadly poison,supernatural wisdom, and enormous size and strength of spiders, havebeen omitted as doubtful. Several cuts from the papers of ProfessorWilder have been repeated by favor of the author and publishers. Mostof the figures are, however, new, and engraved by photography from myown drawings.
CONTENTS.
| CHAPTER I. | |
| PAGE | |
| Anatomy and Classification.—External Parts of a Spider.—Feet. —Palpi and Maxillæ.—Mandibles.—Breathing-Holes.—Epigynum. —Spinnerets.—Eyes.—Colors and Markings.—Internal Organs.— Intestine.—Heart.—Breathing-Organs.—Nervous System.— Poison Glands.—Families of Spiders | 11 |
| CHAPTER II. | |
| Eating and Biting.—Structure of the Mandibles.—Mouth.—Eating Insects.—Biting.—Experiments on Poison of Spiders. —Tame Spiders | 32 |
| CHAPTER III. | |
| Spinning-Habits.—Spinnerets.—Spinning-Glands.—Beginning of a Thread.—Holes and Nests.—Burrows of Lycosa.—Trap-door Nests.—Tubes and Nests of Drassidæ.—Webs of Agalena.—Webs of Linyphia and Theridion.—Spiders living in Webs made by Others.—Round Webs.—Epeira Vulgaris.—Zilla.—Nephila.— Habits in the Web.—Curled Webs.—Cribellum and Calamistrum. —Webs of Amaurobius.—Regular Webs of Dictyna.—Triangle ... BU KİTABI OKUMAK İÇİN ÜYE OLUN VEYA GİRİŞ YAPIN!Sitemize Üyelik ÜCRETSİZDİR! | |