Paguridea,
61
Paguropsis and Sea-anemones,
214
Palæmon,
179:
used for food, 248
Palæmonetes,
174
Palinura,
59
Palinuridæ,
241:
fossil, 269
Palinurus, larva of,
72:
fishery, 240
Palp,
14
Pandalus,
59,
137:
used for food, 245
Panulirus,
241
Paracyamus,
55
Paranaspides,
264
Paranephrops,
177
Parapagurus,
124:
and Sea-anemones, 213
Parasitism,
208
Parastacidæ,
176
Parastacus,
178
Partan,
248
Parthenogenesis,
163:
of Cladocera, 166;
of Ostracoda, 172
Pea Crab,
217
Pedunculata,
43
Peltogaster,
232
Penæidea,
59:
fossil, 267
Penæus,
59:
larvæ, 73;
used for food, 247;
fossil, 268
Peracarida,
46:
development, 78
Pericardium,
17
Peripatus, tracheæ of,
204
Peter's stone,
220
Philomedes,
38
Phosphorescence. See Luminosity
Photophores of Euphausiacea,
125
Phreatoicidea,
173
Phronima,
154
Phronimidæ, eyes of,
154
Phtisica,
54
Phyllocarida,
261
Phyllosoma,
149:
of Spiny Lobster, 72
Phylogeny,
205,
256
Pill Millipede,
203
Pink Shrimp,
137,
245
Pinnaxodes,
218
Pinnotheres,
217:
used for food, 249
Planes,
155
Plankton,
139:
of fresh water, 160;
of lakes, 168, 170;
relation to fisheries, 250
Platyarthrus,
205
Platycuma,
129
Platymaia,
130
Platytelphusa,
184
Pleuron,
9
Podocopa,
39
Podocrates,
269
Pollicipes used for food,
237:
fossil, 261
Polycheles,
133
Pontonia,
218
Pontoporeia,
181
Porcelain Crab: zoëa of,
70:
autotomy, 114;
feeding, 115;
and Hermit Crabs, 215
Porcellana: zoëa of,
70:
autotomy, 114;
feeding, 116
Porcellanidæ,
60
Porcellio,
51:
structure and habits, 202;
distribution, 206
Portunidæ: swimming,
90:
sand-burrowing, 99;
used for food, 249
Potamobiidæ,
176
Potamobius,
174
Potamon,
180:
young of, 78
Præanaspides,
265
Prawns,
58:
luminosity of, 127;
of deep sea, 136;
of fresh water, 174, 179;
of Tanganyika, 183;
blind, in caves, 185;
in Sponges, 210;
Isopods parasitic on, 221;
Common, 245;
used for food, 245;
deep-water, 247;
fossil, 268
Prosoponidæ,
135,
269
Protandrous hermaphroditism,
221
Protective resemblance,
108
Protocarcinus,
269
Protocaris,
260
Protopodite,
10
Protozoëa of
Penæus,
75
Psathyrocaris,
130
Pseudothelphusa,
193
Pseudo-tracheæ,
202
Pygidium,
259
Pygocephalus,
263
Pylocheles,
94
Pylochelidæ of deep sea,
136
Recapitulation, theory of,
86
Red-clawed Crayfish,
242
Regeneration in Lobster,
30
Relict faunas,
182
Remipes,
102
Reproduction of Cladocera,
166:
of Leptodora, 169;
of Cymothoinæ, 220
Reptantia,
59
Respiration in sand-burrowing Crabs,
99:
in amphibious Crabs, 106;
in Land Crabs, 193;
in Cœnobita, 195;
in Birgus, 196;
in Land Isopods, 201, 202, 203
Resting eggs of Cladocera,
166:
of Copepoda, 170
Resting stage of Copepoda,
171
Reversal of asymmetry in Lobster,
30
Rhizocephala,
43:
larvæ, 84;
structure and development, 231
River Crabs: young of,
78:
habits and distribution, 180;
development of, 193
River Prawns,
179:
used for food, 248
Robber Crab,
61,
94:
habits and structure, 195;
breeding, 199
Robertson, David, on habits of Crabs,
97
Rock Lobster. See Spiny Lobster
Rostrum of Lobster,
6
Sacculina,
231
Salt lakes, Branchiopoda of,
165
Sand-burrowing Crustacea,
97
Sand-hoppers,
52:
habits, 107, 189
Sapphirina,
150
Sargasso Sea,
155
Scampo,
240
Scapellum, fossil,
261
Scaphognathite,
19
Schizopod Stage of Lobster,
71:
of Penæus, 75
Scylla,
249
Scyllaridæ, fossil,
269
Scyllaridea,
59:
Phyllosoma larvæ, 149;
fossil, 268
Scyllarus, fossil,
269
Sea-slater,
200
Sea-anemones: and Hermit Crabs,
213:
carried by Crab, 215
Sea-crawfish. See Spiny Lobster
Sea-urchin, Crab living in,
218
Sedentary Crustacea,
114
Self-mutilation in Lobster,
30
Senses of Lobster,
25
Sergestes, zoëa of,
75,
148
Serial homology,
10
Sesarma, habits,
180,
189
Sessile Barnacles,
43
Sexes of Lobster,
26
Sexual characters of Crabs infected with
Sacculina,
235
Sharks, Barnacle parasitic on,
235
Shore Crab,
64:
larval stages, 68;
habits, 107, 188;
infested by Sacculina, 231;
used for food, 249
Shrimps,
58:
fresh-water, 53, 172;
Common, habits of, 97;
protective resemblance, 108;
living with Mollusc, 218;
fishery, 244.
See also Brown Shrimp, Pink Shrimp, etc.
Sight, sense of, in Lobster,
21
Skeleton Shrimps,
109
Slaters,
51:
Sea-, 200
Sloane, H., on Gulf-weed Crab,
155
Smell, sense of, in Lobster,
24
Smith, G.: on terrestrial Amphipoda,
189:
on development of Sacculina, 233
Smith, S. I., on habits of
Ocypode,
105
Somites of Lobster,
6,
8
Southern Crayfishes,
176
Spencer and Hall on Australian Branchiopoda,
161,
163
Sperm-receptacle of Lobster,
27
Spider Crabs,
64:
masking habits, 96, 215;
deep-sea, 128
Spiny Lobster,
59:
larva of, 72;
fishery, 240
Spirontocaris, Isopod parasitic on,
221
Sponge Crab,
95
Sponges, Crustacea in,
210
Spongicola,
210
Squilla,
64:
larva of, 80;
fossil, 266
Stalked Barnacles,
43
Statocyst of Lobster,
24:
of Mysidacea, 47
Statolith,
47
Stebbing, T. R. R.: on Land Crabs,
190:
on habits of Cirolana, 219
Steinkrebs,
242
Stenopidea,
59:
fossil, 267
Stenorhynchus,
97
Sternum,
9
Stevenson, R., on the Gribble,
254
Stomach of Lobster,
16
Stone Crab,
61,
94
Stomatopoda,
64:
larvæ, 80;
habits, 104;
fossil, 266
Stridulating organ of
Ocypode,
105
Subterranean Crustacea,
184
Swimmerets of Lobster,
6,
10
Swimming Crabs,
90:
sand-burrowing, 99;
used for food, 249
Symbiosis,
207
Syncarida,
45,
181:
fossil, 264
Tail-fan of Lobster,
6
Talitridæ,
107
Talitrus: habits,
107:
terrestrial Species, 189
Tanaidacea,
50
Tanganyika, Lake, Crustacea of,
183
Taste, sense of, in Lobster,
25
Telphusa,
180
Telson of Lobster,
6
Tergum,
9
Testis of Lobster,
27
Thalassinidea,
61:
habits, 103
Thaumastocheles,
130,
132
Thompson, J. Vaughan: discovery of metamorphoses of Crustacea,
67:
on larvæ of Cirripedia, 83;
on development of Sacculina, 232
Thoracica,
43
Thorax of Lobster,
7
Thread-worms,
252
Touch, sense of, in Lobster,
22
Tracheæ,
204
Tracheæ, pseudo-,
202
Trapeziidæ,
211
Triarthrus,
258
Trilobites, structure and history,
258
Tubicinella,
209
Turrilepas,
261
Turtles: Barnacles on,
209:
Gulf-weed Crab on, 209
Underground Crustacea,
184
Uropods of Lobster,
6
Venus's Flower-basket, Crustacea in,
210
Water-fleas,
37,
165
Weismann on parthenogenesis of
Cypris,
172
Well Shrimp,
184
Westwood, J. O., on development of Land Crabs,
192
Whales, Barnacles on,
209
Whale-food,
138
Whale-lice,
56:
habits, 224
White-clawed Crayfish,
242
Willey, A., on breeding of Robber Crab,
199
Williamson, H. C., on habits of Lobster,
25
Wood-boring Crustacea,
253
Woodlice,
51:
development of, 79;
habits and structure, 199;
distribution of, 206;
destructive in gardens, 253
Worms: and Hermit Crabs,
215:
Copepoda parasitic in, 230
Zoëa of Shore Crab,
69:
of Caridea, 73;
of Porcelain Crab, 70;
of Munida, 71;
of Penæus, 75;
of Sergestes, 75, 148;
of Robber Crab, 199