INDEX. 
XIX 
Order II. — DORSIBRANCHI ATA — ( conlinued ). 
Phyllodoce, 136 
Alciopa, 136 
Spio, 136 
S}dlis, 136 
Glycera, 137 
Nephthys, 137 
Luinbiinera, 1.37 
Aricia, 137 
Hesione, 137 
Ophelina, 138 
Cirrhatulas, 138 
Palmyra, 138 
Aphvodita, 138 
Halithea, 13f) 
Eumolpe, 139 
Polynoe, 139 
Sigaliones, 139 
Acoetes, 139 
Chaetcpterus, 140 
Order 111.— ARBRANCHIAT^, 140 
Fam. 1. — Abranchiat.e Setiger.®, 141 
Lumbricus, 141 
Lumbricus proper, 141 
Enteriones, 141 
Hypogaeones, 142 
Troplionise, 142 
Nais, 142 
Clymena, 142 
Fam. 2. ABRANCHIAXiE ASETIGERiE, 143 
Hirudo, 143 
Sanguisuga, 143 
Haemopsis, 144 
Bdella, 144 
Nephelis, 144 
Trochetia, 144 
Aulastoma, 144 
Branchiobdella, 145 
Hsemocharis, 145 
Albiona, 145 
Branchellion, 145 
Clespine, 146 
Pbylline, 146 
Malacobdella, 146 
Gordius, 146 
