232 
INDEX. 
Podocerus variegatus, xiii. 211 
Podophthalmus, ( Lam .) 149 
Poecilopoda, the, 321 
Polybius, {Leach) 147 
Henslowii, 148 
Polydonte, (Rent.) 27 
Polydorae, the, 22 
Polydorus, {OJcen.) 34 
Polygonata, (Fab.) 215 
Polyphemus, {Mull.) 338 
oculus, 339 
of the ponds, 339 
Polynoe {Sav.) 26 
impatiens, 27 
laevis, 26 
muricata, 27 
Pontobdella, {Leach ty Blain.) 34 
areolata, 34 
spinulosa, 34 
verrucata, 34 
Pontonia, {Latr.) 192 
Pontophilus, {Leach) 191 
Porcellana, {Lam.) 184 
hirta, 185 
hirsuta, 312 
polita, 312 
Porcellio, {Lat.) 225 
Portuni, the, 147. 276 
Portunus, {Fab.) 149 
bimaculatus, 277 
depurator, 277 
Dufourii, 150 
guttatus, 277 
hastatus, 278 
longipes, 277 
pelagicus, 27 6 
plicatus, 277 
puber, 277 
Tranquebarius, 150 
Pou du gasteroste, 371 
Praniza, {Leach) 212 
Prawn, 177 
Prawns, the, 313 
Probosci-plectanas, 10 
Processa, {Leach) 191 
Prophylax, 181 
Proto, {Leach) 214 
Protula Rudolphii, 12 
Pseudobdella, 33 
Pseudo-scorpiones, 495 
Psocus pulsatorius, 521 
Pterygocera, {Lat.) 211 
Pterygopoda, {Latr.) 373 
Pulex aquaticus arborescens, 347 
Pulmonariae, the, 386 
Pycnogona, the, 521 
Pycnogonides, the, 498. 521 
Pycnogonum, {Brun.) 499 
balsenarum, 522 
Quadrilatera, xiii. 154 
Ranina, {Lam.) 175 
Raninse, the, 296 
Rectigrades, the, 403 
Red-blooded worms, the, 3 
Reniformes, {Agnostus) 381 
Remipes, {Latr.) 179 
testudinarius, 179 
Rhyneoprion, {Herm.) 507 
Ricinise, {Latr.) 505 
Ricinus, 506 
Rocinela, {Leacli) 218 
Rouget, what called, 509 
Sabella, {Cuv.) 11 
{Linn, fy Gmel.) 11 
of Linnaeus, 80 
alveolata, 15 
Belgica, 14 
bispiralis, 12 
Capensis, 15 
chrysodon, 15 
grandis, 12 
Indica, 12. 15 
protula, 12 
unispira, 12 
villosa, 12 
Sabellae astartae, 12 
spirographicae, 12 
Saltigrades, 429 
Salticus, the genus, 485 
{Latr.) 431 
formicarius, 432 
grossipes, 487 
Saltique de Sloane, 431 
chevronne, 432 
Sanguisuga, {Sav.) 32 
Sarcoptes, {Latr.) 505 
Sauce-pan-fish, 363 
Schizopoda, 194 
Scirus, the genus, 518 
{Herm.) 505 
vulgaris, 505 
Scoletoma, {Blain.) 23 
Scolex of Aristotle, 38 
Scolezia of Athenaeus, 38 
Scolopendrae, marine, 41 
Scolopodes, {Blain.) 23 
Scorpio, 434 
the genus, 487 
australis, 491 
cancroi'des, 498. 519 
cimicoides, 498. 519 
crassicauda, 491 
Europaeus, 437 
occitanus, 436, 437. 489. 492, 
493 
