APPENDIX. 391 



Division A. Anarthropoda. No jointed limbs. 



CLASS I.-GEPHYREA** ("Spoon-worms"). 



CLASS II. ANNELIDA ("Ringed-worms"). Ex. Leeches** 

 (Hirudinea), Earthworms** Oligochceta), Tube-worms 

 (Tubicola), Sea-worms and Sea-centipedes (Errantia). 



CLASS III. CH^TOGNATHA ** ("Arrow-worms"). 



Division B. Arthropoda or Articulata. Limbs jointed to the 

 body. 



CLASS I. CRUSTACEA ("Crustaceans"). Ex. Barnacles and 

 Acorn-shells (Cirripedia), Water-fleas (Ostracoda), 

 Brine-shrimps and Fairy-shrimps (Phyllopoda), Trilo- 

 bites * (Trilobita), King-crabs and Eurypterids * (Mer- 

 ostomata), Wood-lice and Slaters (Isopoda), Sand-hop- 

 pers (Amphipoda), Lobsters, Shrimps, Hermit-crabs, and 

 Crabs (Decapoda). 



CLASS II. ARACHNIDA. Ex. Mites (Acarina), Scorpions (Pedi- 

 palpi), Spiders (Araneida). 



CLASS III. MYRIAPODA. Ex. Centipedes (Chilopoda), Millipedes 

 and Galley-worms (Chilognatha). 



CLASS IV. INSECTA ("Insects"). Ex. Field-bugs (Hemiptera) ; 

 Crickets, Grasshoppers, &c. (Orthoptera) ; Dragon-flies 

 and May-flies {Neuroptera} ; Gnats and House-flies (Dip- 

 tera] ; Butterflies and Moths (Lepidoptera} ; Bees, Wasps 

 and Ants (Hymenoptera) ; Beetles (Coleoptera). 



SUB-KINGDOM V. MOLLUSCA. 



Animal soft-bodied, generally with a hard covering or shell ; 

 no distinct segmentation of the body ; nervous system of scat- 

 tered masses. 



CLASS I. POLYZOA ("Sea-Mosses"). Ex. Sea-mats (Flustra), 



Lace-corals (Fenestellidte*}. 

 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 (Bucci- 



num}, Limpets (Patella), Sea-slugs** (Doris), Land- 

 snails (Helix). 

 CLASS VI. PTEROPODA ("Winged Snails"). Ex Hyalea, Cleo- 



dora. 

 CLASS VII. CEPHALOPODA ("Cuttle-fishes"). Ex. Calamary 



(Loligo), Poulpe (Octopus), Paper Nautilus (Argon- 



auta), Pearly Nautilus (Nautilus), Belemnites, * Ortho- 



ceratites, * Ammonites. * 



