Sea-mats (_Flustra_),
Lace-corals (_Fenestellidoe_*).
CLASS II. TUNICATA** ("Tunicaries"). _Ex_. Sea-squirts
(_Ascidia_).
CLASS III. BRACHIOPODA ("Lamp-shells"). _Ex_. Goose-bill
Lamp-shell (_Lingula_).
CLASS IV. LAMELLIBRANCHIATA ("Bivalves"). _Ex_. Oyster
(_Ostrea_), Mussel (_Mytilus_), Scallop (_Pecten_),
Cockle (_Cardium_).
CLASS V. GASTEROPODA ("Univalves"). _Ex_. Whelks
(_Buccinum_), Limpets (_Patella_), Sea-slugs**
(_Doris_), Land-snails (_Helix_).
CLASS VI. PTEROPODA ("Winged Snails"). Ex. _Hyalea, Cleodora_.
CLASS VII. CEPHALOPODA ("Cuttle-fishes"). _Ex_. Calamary
(_Loligo_), Poulpe (_Octopus_), Paper Nautilus
(_Arganauta_), Pearly Nautilus (_Nautilus_), Belemnites,*
Orthoceratites,* Ammonites.*
VERTEBRATE ANIMALS.
SUB-KINGDOM VI.--VERTEBRATA.
Body composed of definite segments arranged longitudinally one
behind the other; main masses of the nervous system placed dorsally;
a backbone or "vertebral column" in the majority.
CLASS I. PISCES ("Fishes"). _Ex_. Lancelet** (_Amphioxus_);
Lampreys and Hag-fishes (_Marsipobranchii_**); Herring,
Salmon, Perch, &c. (_Teleostei_ or "Bony Fishes");
Gar-pike, Sturgeon, &c. (_Ganoidei_); Sharks, Dog-fishes,
Rays, &c. (_Elasmobranchii_ or "Placoids").
CLASS II. AMPHIBIA ("Amphibians"). Ex. _Labyrinthodontia_,*
Caecilians,** Newts and Salamanders (_Urodela_), Frogs and
Toads (_Anoura_).
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