XXVl 
CONTENTS. 
Orthoptera. By R. McLachlan, F.R.S., &c. 
Page 
The General Sub- 
ject 258 
Forficulidae .... 260 
Page 
Blattidae 260 
Mantidac 260 
Phasmatidae. . . . 261 
Gryllidae 
Locustidae 
Acrydiidae 
Page 
. 262 
. 266 
Riiynciiota. By W. F. Kirby, M.E.S., &c. 
General Subject . 276 
Hemiptera — He- 
teroptera .... 278 
Pentatomidae ... 278 
CoreidaB 279 
Berytidae 279 
Lygaeidae 280 
Tingididas . '. . . 281 
Aradidae 281 
Capsidae 281 
Anthocoridae . . . 282 
Saldidae 283 
Nabidae 283 
Reduviidae .... 283 
Hebridae 283 
Hydrometridae . . 284 
Nepidae 284 
Notonectidae . . . 284 
Corisidae ..... 284 
Hemiptera — Ho- 
moptera .... 284 
Cicadidae 285 
Cercopidae .... 285 
Membracidae . . . 286 
lassidae 287 
Fulgoridae .... 288 
Psyllidae 288 
Aphididae 290 
CoccidaB 291 
Aleurodidas .... 291 
(Anoplura) .... 291 
VERMES. By F. Jeffrey Bell, M.A., F.R.M.S., F.Z.S., Prof. Comp. 
Anat. King’s Coll., Lond. 
Platyhelminthes . 1 
Nematohelminthes 5 
ChaBtognatha ... 8 
Acanthocephali . . 8 
Rotatoria 8 
Gephyrea 8 
Annulata 9 
Solenogastres . . 17 
EOHINODERMATA. By C. F. LOtken, Ph.D., F.R.D.A., &c. 
Titles . . 
Anatomy 
EchinidaB 
1 AsteridaB 6 Fossil Echinoder- 
3 OphiuridaB .... 6 mata 13 
6 Crinoids 12 
CCELENTERATA. By C. F. Lutken, Ph.D., F.R.D.A., &c. 
Anthozoa . . , 
Fossil Corals , 
Hydrozoa . . 
Fossil Hydrozoa, 
&c 15 
Siphonophora. . . 16 
Hydrocorallia ... 17 
Ctenophora .... 19 
SPONGIIDA. By Stuart 0. Ridley, B.A., F.L.S. 
Recent Sponges 1 | Fossil Sponges 13 
PROTOZOA. By Stuart O. Ridley, B.A., F.L.S. 
General Subject. . 1 I Rhizopoda 6 1 Flagellata, Monads 12 
Infusoria ..... 2 | Fossil Rhizopoda . 11 j Gregarinida ... 17 
Index to Genera and Subgenbra described as new, «S;c. 
