INDKX. 
XVI 11 
Orukr II.— ACEPHALA (continued). 
Jialanus proper, 120 
Acastae, 121 
Coniae, 121 
Aseniae, 121 
Pyrgomic, 121 
Octliosia*, 121 
Creiisiao, 121 
Coronula*, 121 
Tubiciiiollae, 121 
Daidenia, 122 
THIRD GREAT DIVISION OF THE ANIMAL KINDGOM. 
ANIMALIA ARTICULATA. 
Distribution of tlie Articulata into four Classes, 124. 
CLASSES. 
HI. Arachnidrs. 
IV. Insecta. 
T. Annelides. 
II. Crustacea. 
CLASS I.— ANN ELIDES. 
Division of the Aniielides into tlirce Orders, 127. 
Order 1 .— TUIHCOLAi}, 128 
Serpula, 128 
S[)irorbis, 120 
Sabcdla, 129 
'I’erebella, 130 
Phy/.eliat*, 131 
Idalhn, 131 
Ainpliitrite, 1.31 
Sypliostoinu, 132 
Dentaliuni, 132 
Order H.— DORSIRRANCHIATA, 1.32 
Arenicola, 13.3 
Anipliinoine, 1.3.3 
Chlooia, I.3I 
Pleione, 134 
Euj)lirosino, 134 
Hipponea, 134 
Eunice, 1.34 
Marjdiisie, 13.'> 
Lysidice, 135 
Agula, 1.35 
Nereis, 135 
Nereipliylia, 13G 
