Chapter I: Front Matter

Transcriber's Note

Obvious misprints have been fixed. Archaic and unusual words, spellings and styling have been maintained. Details of the changes are in the Detailed Transcriber's Notes at the end of the book.

This book was published in two volumes, of which this is the second. The first volume was released as Project Gutenberg ebook #31558, available at https://www.gutenberg.org/ebooks/31558.

Transcriber Added

Table of Contents.

Page

Dedication v
Preface vii
_Monograph on the Cirripedia_ 1
Introduction 1
On the Names given to the different parts of Cirripedes 3
Class Crustacea, Sub-Class Cirripedia 9
On the Sexual Relation of Cirripedes 23
Order I.--Thoracica 30
Family Balanidæ 33
Table of Contents 33
Structure of Shell 34
Structure of the Individual Compartments 43
Structure of the Radii 45
Structure of the Alæ 47
Structure of the Sheath 48
Structure of the Basis 49
Structure of the Opercular Valves (Scuta and Terga) 51
Growth of the Whole Shell, and Its Microscopical Structure
54
Muscles of Sack 61
Branchiæ 63
Thorax and Body 65
Muscular System 68
Movements and Muscles of the Cirri 71
Mouth 74
Cirri 81
Caudal Appendages 85
Alimentary Canal 85
Circulatory System 87
Nervous System 88
Eyes and Vision 93
Acoustic Organs 95
Olfactory Sacks 97
Male Organs of Generation 97
Female Organs of Generation 100
Metamorphoses and Homologies 102
Larva, First Stage 103
Larva, Second Stage 109
Larva in the Last or Pupal Stage 110
Act of Metamorphosis 126
On the Homologies of the Carapace and Shelly Valves 131
Cementing Apparatus 133
Affinities, Classification, Variation 152
Rate of Growth, Exuviation, Powers of Repairing Injuries
156
Geographical Range and Habits 159
Geological History 172
Sub-Family Balaninæ 175
1. Genus Balanus 177
Sections of the Genus 193
Section A 194
1. Balanus tintinnabulum 194
Var. communis, vesiculosus, validus, zebra, crispatus,
spinosus, coccopoma, concinnus, intermedius, occator,
d'Orbignii
Varieties 201
2. Balanus tulipiformis 204
3. Balanus psittacus 206
4. Balanus Capensis 209
5. Balanus Nigrescens 210
6. Balanus decorus 212
7. Balanus vinaceus 213
8. Balanus Ajax 214
Section B 216
9. Balanus stultus 216
10. Balanus calceolus 218
11. Balanus galeatus 220
12. Balanus cymbiformis 221
13. Balanus navicula 221