APPENDIX. 



349 



CLASSIFICATION OP THE ANIMAL KINGDOM. 



MOLLUSCA 

 Cephalopoda 



Pteropoda . 



Gasteropoda: 



Pulmonigasteropoda 

 Branchiogasteropoda 



Lamellibranchiata 

 Brachiopoda 



Tunicata, or Ascidioidea 



Bryozoa or Polyzoa 



ARTHROPODA 

 Insecta 



Arachnida 

 Myriopoda 

 Crustacea 



Invertebrata. 



Typical Examples. 

 . Octopus, argonaut, squid, cuttle-fish, 



nautilus. 

 . Clio, Cleodora. 



Snail, slug. 



. Whelk, limpet, periwinkle. 

 . Oyster, mussel, cockle. 

 . Terebratula, Lingula. 

 . Salpa, Pyrosoma. 



Sea mat. 



Beetle, bee, ant, locust, grasshopper, 

 cockroach, earwig, moth, butterfly, 

 fly, flea, bug. 



Scorpion, spider, mite. 



Centipede, millipede. 



Crab, lobster, crayfish, prawn, barnacle. 



Annulate 



Scolecida 



Echinodermata 



CCELENTERATA 



Ctenophora . 

 Anthozoa . 

 Hydrozoa . 



Spongida 



Sea-mouse, leech, earthworm. 

 Hair-worm, thread- worm, round-worm, 



fluke, tape-worm, guinea- worm. 

 Sea- cucumber, sea-urchin, star-fish, 



sand-star, feather-star. 



Beroe. 



Sea anemone, coral, sea-pen. 



Hydra, Sertularia, Velella, Portuguese 



man-of-war. 

 Sponges. 



PROTOZOA 



Rhizopoda . 

 Infusoria 



Foraminifera, Amoeba. 

 Paramoecium, Vorticella. 



