APPENDIX. 
469 
Polygastrica 
CLASS VII. 
ROTATORIA. 
Polythalamia 
CLASS VIII. 
ENTOZOA. 
Rotifera 
Acanthocephala 
Ascaridse 
Eilaria 
Tenia 
Ammonites 
Argonaut 
Cuttle-fish 
Achatina 
Achatinella 
Anastoma 
Ancylus 
Aplysia 
Atlanta 
Ampullaria 
Ancilla 
Euccinum 
Bulimus 
Cancellaria 
Carinaria 
Cank-shell 
Cassis 
Crepidula 
Chiton 
Clausilia 
Conus 
Cypraea 
Dolabella 
Dolium 
DIVISION III. 
CLASS IX. 
MOLLUSC A. 
(Shells.) 
Order I. — Cephalopoda. 
Nautilus Spirula 
Octopus Tetrabranchiata 
Sepia 
Order II. — Gasteropoda. 
fZoophaga.J 
Doris 
Ear-shell 
Emarginula 
Easiolaria 
Glacus 
Haliotus 
Helmit-shell 
Helix 
Janthina 
Limax 
Limpet 
Littorina 
Lottia 
Magillus 
Nassa 
Natica 
Nematura 
Nerita 
Nudibranchiata 
Onchidium 
Paludina 
Periwinkle 
Phorus 
Pleurotoma 
Purpura 
Phytophaga 
PhyUidea 
Phvsa 
Rotella 
Sealaria 
Siliquaria 
Slug 
Snail 
Stomatia 
Triton 
Terebellum 
Tornatella 
Turbinella 
Turritella 
Turbo 
Vermetus 
