178 
Division B. 
the body. 
INVERTEBRATE ANIMALS. 
ARTHROPODA.—Locomotive appendages jointed to 
Crass I, CRUSTACEA. 
Order a. 
Order 8. 
Order c. 
Order d. 
Order @. 
Order f- 
Order g. 
Order 2%. 
Order 7. 
Order 7. 
Order &. 
Order /. 
Order m2. 
Ichthyophthira.—x, Lernea. 
Cirripedia.—Ex. Acorn-shells (Balanus). 
Ostrvacoda,— Lx. Cypris. 
Copepoda.— Lx. Cyclops. 
Cladocera.—E-x. Daphnia. 
Phyllopoda.—Ex. Apus. 
Trilobtta.—Ex. Angelina. 
Merostomata.— Ex. King-crabs (Limulus), Eurypterida. 
Lemodipoda.—Ex, Whale-louse (Cyamus). 
Lsopoda.—Lx. Wood-lice (Oniscus). 
Amphipoda.— Ex. Sand-hopper (Talitrus). 
Stomapoda.—Ex, Locust-shrimp (Squilla), 
Decapoda.— Ex. Lobsters (Homarus), Hermit-crabs 
(Pagurus), Crabs (Cancer). 
CLaAss II, ARACHNIDA. 
Order a. 
Order 8. 
Order c. 
Order d. 
Order e. 
Podosomata.—Lx. Sea-spiders (Pycnogonum). 
Monomerosomata.—Ex. Mites (Acarida). 
Adelarthrosomata.—x. Harvest-spiders. 
Ledipalp~i.—Lx. Scorpions (Scorpio). 
Araneida.— Ex, House-spiders (Tegenaria). 
Cxiass III. MyrRIAPODA. 
Order a. 
Order 4. 
Order c. 
Chilopoda. —Ex. Centipedes (Scolopendra). 
Chilognatha.—£x. Millipedes (Lulus). 
Fauropoda.—Lx. Pauropus. 
Ciass IV. INSECTA. 
Order a. 
Order 0. 
Order c. 
Order d. 
Order @é. 
Order f. 
Order g. 
Order 4. 
Order z. 
Order 7. 
Order &. 
Order 7. 
Anoplura.—Ex. Lice (Pediculus). 
Mallophaga.— Ex. Bird-lice. 
Thysanura.—Ex, Spring-tails (Podura). 
femiptera,—Lx. Plant-lice (Aphides). 
Orthoptera.—L x. Cockroaches (Blattina). 
Neuroptera,—LEx. Dragon-flies (Libellulidz). 
Aphaniptera,—Ex. Fleas (Pulex). 
Diptera.—Ex, House-flies (Musca). 
Lepidoptera.—Ex. Butterflies and Moths. 
Hymenoptera — Ex. Bees and Wasps. 
Strepsiplera.—Ex. Stylops. 
Coleoptera.— Fx. Cockchafers (Melolontha), Stagbeetles 
(Lucanus), Weevils (Curculio). 
