INDEX. 
XXV ' 
Order I. — BRANCHIOPODA — fcontinuedj . 
Cypris, 24.5 
Sida, 247 
Lalotia, 247 
Polyphemus, 248 
Daphnia, 248 
Lyiiceus, 253 
Phyllopa, 253 
Limnadia, 254 
Arternia, 255 
JBraiichipus, 255 
Eulimene, 257 
Apus, 258 
Order 11. — P.^CILOPODA, 261 
Vam. 1. — Xypiiosuua, 2G1 
Limulus, 262 
Tachypleus, 264 
Fam. 2. — Siphonostoma, 264 
7hibe 1. — Caligides, 264 
Argulus, 265 
Caligus, 268 
Calig’us proper, 269 
Pterygopoda, 269 
Pandarus, 269 
Dinemoura, 269 
Anthosoma, 269 
CecrojDs, 270 
Tribe 2.--Lerneiformes, 270 
Dichelestium, 270 
Nicothoe, 271 
TRILOBITES, 273. 
Agnostus, 274 
Calymene, 274 
Asaphus, 274 
Ogygia, 274 
Paradoxides, 274 
CLASS II.— ARACHNIDES, 
Order I.— PULMONARIiE, 277 
Fam. 4. — Araneides, 279 
Mygale, 286 
Mygale proper, 286 
Cteniza, 289 
Atypus, 289 
Eriodon, 29(> 
VOL. Ilf. 
a 
