TABLE OF CONTENTS.

THE SHELL GALLERY.
PAGE
General Notes on Mollusca [1]
Systematic Arrangement [7]
Amphineura (Chitons, etc.) [7]
Gastropoda (Marine Univalves, Land-Snails, etc.) [9]
Lamellibranchia (Bivalves, Oysters, Cockles, etc.) [29]
Cephalopoda (Octopus, Cuttlefish, etc.) [45]
Index to principal Genera of Mollusca [51]
General Notes on Polyzoa [54]
Classification [57]
An account of the Brachiopoda [74]
Classification [77]
An account of the Tunicata [83]
Arrangement [90]
THE STARFISH GALLERY.
General account of the Echinoderma [106]
Crinoidea (Lily Stars, etc.) [112]
Asteroidea (Starfishes) [113]
Ophiuroidea (Brittle-Stars) [114]
Echinoidea (Sea-Urchins) [114]
Holothurioidea (Sea-Cucumbers) [115]
Vermes Platyhelminthes (Tapeworms, etc.) [116]
Nematodes (Round-worms, etc.) [118]
Annulata (Marine Worms, Earthworms, Leeches) [122]

THE SHELL GALLERY.