Part 2

Life in Tropical Seas--Portuguese Man-of-War--Its Structure-- Bladder--Tentacles--Poisoning Powers--Effects--Dr. Wallich’s Objections--Gulf-stream--Velellæ--Stephanomia--Tongued Sarsia--Its Swimming-bell--Locomotive Powers--Tentacles-- Forbes’s Æquorea--Luminosity--Crimson-ringed Aurelia--Its Transformations--Cydippe--Poetical Description of it, 248-273

XI.--NOVEMBER.

Clarence’s Dream of the Sea Bottom--Diving-bell--Lobster-horn-- Campanularia--Medusa-like Progeny--Scalpellum--Acorn Barnacles--Necked Barnacle--Pyrgoma--Cirriped Transformations--Tube-worms--Serpula--Its Shell--Hooks and Bristles--Gills--Stopper--Its Homology and Use-- Sabella--Shell-tube--Gills--Soft-tube--Hook-plumed Sabella--Process of Tube-building, 274-297

XII.--DECEMBER.

Squirters--Affinity with Bivalves--Test--Gill-sac--Branchial Cilia--Heart--Blood Circulation--Digestion--Tentacles--Eyes-- Cynthia--Currant Squirter--Four-angled Squirter--Discharge of Eggs--Transformations--Compound Forms--Botrylli--Oceanic Forms--Pyrosoma--Its Luminosity--Sponges--Their Habitats-- Various Species described with the Forms of their Spicula-- Motives for Study--A Protest against prevalent Errors, 298-327

LIST OF ILLUSTRATIONS.

PLATE

I. DOG-WHELK--PELICAN’S FOOT--TOP--COWRY, Frontispiece.

II. SCALLOPS, TO FACE PAGE 22

III. DOTTED SIPONCLE--SEA-CUCUMBER, 28

IV. SEA LEMON--CROWNED EOLIS--SPAWN OF BOTH, 40

V. LIMPET--PURPLE--SLIT-LIMPET, 50

VI. RED-NOSE--FINGER-PHOLAS, 54

VII. SNOWY ANEMONE--DEAD-MAN’S FINGER--ROSY ANEMONE--LUCERNARIA--SMOOTH BEADLET, 66

VIII. DAHLIA WARTLET, 72

IX. GREEN OPELET--ORANGE-DISK ANEMONE, 78

X. SINOUS COCKLE--BANDED VENUS, 92

XI. COMMON SHRIMP--GREAT PRAWN, 102

XII. SAND-LAUNCE--TOPKNOT, 108

XIII. FIFTEEN-SPINED STICKLEBACK--LESSER WEEVER, 116

XIV. MASKED CRAB, 128

XV. BANDED FLAT-WORM--LONG-WORM, 134

XVI. SEA HARE, 140

XVII. LIGIA--TORBAY BONNET--TUSK-SHELL, 148

XVIII. PEARLY NEREIS--RAINBOW LEAF-WORM, 158

XIX. TWO-SPOTTED SUCKER, 168

XX. PURPLE-TIPPED URCHIN--ROSY FEATHER STAR--STARLET, 172

XXI. OLIVE SQUAT-LOBSTER--SHAGGY FLAT-CRAB--SCARLET SQUAT-LOBSTER, 188