126 FOSSILS THEIR NATURE AND ARRANGEMENT. 



ARACHNIDA (Spiders) Spiders, Scorpions, Mites. 

 CRUSTACEA (Crust-dad) Crayfish, Crabs, Shrimps, Woodlice. 

 CIRRHOPODA (Curl-feet) Acorn-shells, Barnacles. 



2. VERMES, or Worms Proper. 



ANNELIDA (Small-rings) Lobworm, and almost all the marine worms. 

 KOTIFERA ( Wheel-bearers) Kotifers, Hydatina. 

 GEPHYRIA (Intermediates urchin-like) Sipunculus, Echinurus. 

 LUMBRICINA (Earth- worms) Earth-worms, Nais. 

 HIRUDINEI (Leeches) Leeches, Branchellion. 

 TURBELLARIA ( Turoellaries) Planaria, Kibbon- worms. 

 HELMINTHES (Gut-worms) Intestinal worms. 



II. MOLLUSCA, subdivided into Molhisca and Molluscoida. 



1. MOLLUSCA, or Shell-fish Proper. 



CEPHALOPODA (Head-footed) Cuttle-fish, Octopus, Calamary, Nautilus. 

 PTEROPODA ( Wing-footed) Clio, Hyalsea. 

 GASTEROPODA (Belly -footed) Snails, Slugs, Whelks, Cowries. 

 ACEPHALA (Headless) Oysters, Mussels, Cockles, Shipworms. 

 BRACHIOPODA (Arm-footed) Terebratula, Lingula. 



2. MOLLUSCOIDA, or Mollusc-like Animals. 



. . . ( Biphora, Simple and Compound 

 TUNICATA (Coated, lut Shell-less) j * Ascidians. 



POLTZOA (Compound animals)} 



or VFlustra, Eschara, Plumatella, &c. 



BRYOZOA (Moss-like animals) ) 



III. RADIATA, or ZOOPHYTES Ray-like Animals. 



ECHINODERMATA (Urchin-sJcinned) Sea-urchins, Star-fishes. 



ACALEPH.E (Sea-nettles) Jelly-fish, Beroes. 



POLYPI (Many-feet) Coral animals, Sea-anemones, Hydras. 



IV. PROTOZOA, or LOWEST-LIFE -Globular Animals. 



INFUSORIA (Infusories) Monads, Volvoces, Vorticella. 

 PORIFERA (Pore-bearers) Sponges, Fresh-water Sponges. 

 RHIZOPODA (Root-footed) Amoeba, Polythalamia (Foraminifera). 



Such are the leading facts connected with the nature, 

 history, and arrangement of fossils. Much more might 

 have been stated respecting the positions in which they 

 occur and the geographical conditions which they thereby 



