223; anatifera, size attained by, 31; fascicularis, larvæ of, 205 Leponiscus pollici pedis, 405 Leptaspidia brevipes, curious habi- tat of, 381
Leptochela, gracilis, robusta, ser- ratorbita, 252
Leptochelia, 323; algicola, dubia, Edwardsii, Savignyi, 326; limi- cola, 327
Leptocuma Kinbergii, 304 Leptognathia, 324; laticaudata, Lilljeborgi, rigida, 327 Leptomysis, 267; gracilis, ling- vura, 274
Leptopodia sagittaria, 106; frau- dulent use of, 107 Leptosoma preoccupied, 374 Leptosquilla, 281; Schmeltzii, 288 Leptostylis, 311; manca, last legs deficient in, 298; producta, 311
Leptotrichus, pulchellus, tauricus, 429
Lernæa abyssicola, a parasitic copepod, 20
Leucifer, Reynaudii, eyes of, 35; typus, 222; comparison of, with Lepas, 223
Leucon nasica, 304 Leuconidæ defined, 304 Leucosia, australiensis, pulcher-
rima, scabriuscula, splendida, 127; de Haan on respiratory system of, 41, 142 Leucosiidæ defined, 127 Leucosiidea, alias Oxystomata, 53 Leydig, Dr. Fr., on olfactory or- gans, 37
Libinia emarginata, numbers cf, 120
Ligia, cursor, dilatata, exotica, oceanica, 421
Ligiidæ defined, 420 Ligidium,
hypnorum, melano-
cephala, paludicola, 421 Life, expenditure of, 395 Limbs, 33
Limnoria, lignorum, 367; segnis,
Limulus, polyphemus, 17; moluc- canus, 27; use of legs as man- dibles by, 40
Links in the evolution of species, 55, 103, 137
Linnæus, the genus Cancer of, 57 ; view of Pinnotheres held by, 100; the genus Oniscus of, 318; Systema Naturæ of, 437 Linschotten, on man-eating crabs, 26
Liriope preoccupied, 403 Liriopsis, monophthalma,pygmæa, 403
Lisp gnathus Thomsoni, distri- bution of, 110
Lissa chiragra, appearance and habits of, 116
Lithodes, camschatica, 28; histrix, Maia, 153; Agassizii, Murrayi, 154
Lithodidæ, distribution of, 153 Lithodinea defined, 152
Liver, the, 48, 55, 78, 104, 300, 317
Livoneca, classification of, 352; ovalis, Redmanni, 352
Lloyd, W. A., on behaviour of Eu- pagurus, 164
Lobothorax, auritus, typus, 353 Lobster, the Norway, 202; the common, 203; the American, 204; little, 371 Lomis dentata, 154 Lophogaster, typicus, 257, 259 Lophogastridæ defined, 257 Lophoxanthus, 56
Loricata, alias Scyllaridea, 191 Lucasius, hirtus, myrmecophilus, pallidus, pauper, tardus, 429 Lucifer preoccupied, 221 Luminosity of Crustacea, 103, 244, 259, 262, 263, 265 Lyprobius, 431
Lyreidus, Bairdi, tridentatus, 144; ill-defined orbits of, 145 Lysioerichthus, larva of Lysio- squilla, 290
Lysiosquilla, armata, 19, 281; ex- cavatrix, maculata, scabricauda, scolopendra, spinosa, 284; bur-
rowing procedure of excavatrix, 285
Lysmata seticaudata, 229
MACROCHEIRA Kämpferi, great size of, 27, 107
Macrocœloma, concava, trispinosa, 119
Macromysis, synonym of Praunus, 267, 271 Macrophthalmus, 92
Macropodia, 105, 113; longiros- tris, rostratus, 105 Macropsis, 267, 272; Slabberi, re- markable eyes of, 273 Macropus preoccupied, 105 Macrostylis, 382; latifrons, spini- gera, 383
M crura, the suborder, 8; defined, 146; tabular view of, 148 Mæra, littoral specimens of the amphipod, 16
Maia, 107, 111; squinado, charac- ter and habits of, 22, 111; ver- ruco-a, 112
Maiidæ defined, 111
Maiinea defined, 104
Maioidea, alias Oxyrrhyncha, 53 Malacostraca, the sub-class, im- portance of, 6; the name of, 7; defined, 50
Mamma Shrimp, the West Indian, 145
Mancasellus, brachyurus, tenax, 377
Mandibles, 39; in Hippa talpoida, 151; in Paratanais, 323; in the Gnathiidæ, 336, 337 Marsupium, 45; in the Schizopoda, 256, 257, 260, 261, 267; in the Cumacea, 298, 300; in the Iso- poda, 319, 337, 339, 357, 370, 376, 393, 398, 405 Masked Crab, the, 53, 73 Mastigobranchiæ, 197, 201 Mastigochirus quadrilobatus, 152 Mastigopus preoccupied, 152 Matuta, swimming and digging powers of, 126; lunaris, victor, 126
Matutidæ defined, 126
Maxillæ, 41; of Lophogastridæ, 259; of Cumacea, 295; of Iso- poda chelifera, 318 Maxillipeds, 42; of Schizopoda, 256; of Squilla mantis, 282; of Cumacea, 296; of Isopoda, 316 Mayer, Dr. Paul, on development and auditory apparatus of Palæ- monetes varians, 248; on sexes of the Cymothoidæ, 350 Measurements, abuse of, 232; use of, 289
Megalopa, larval stage of various crabs, 61; of Hippa, 151 Meinert, Dr. F., on the Cymo- thoidæ, 351
Meinertia, new genus, imbricatus, 354
Meleagrina margaritifera, Pinno- theres encysted in, 101
Melita, littoral species of the Am- phipod, 16
Meningodora, 245
Mergui Archipelago, Crustacea of,
Merhippolyte, 234, 237
Merostomata, an order of extinct Gigantostraca, 10
Merus, alias meropodite, thigh, or fourth joint, 43
Mesarmadillo, Alluaudi, margina- tus, tuberculatus, 435 Mesorhoea, 121
Mesostenus preoccupied, 386 Metanauplius, larval stage of Eu- phausiidæ, 266 Metaplax, 92
Metoponorthus, cingendus, meri- dionalis, 428; Barroisi, pruino- sus, 429 Microniscidæ, 396
Microniscus, 396; calani, fuscus, 397
Miers, Mr. E. J., on Ethusina chal- lengeri, 18; report on the Chal- lenger Brachyura by, 55; on genera near to Xantho, 56; on Professor A. Milne-Edwards, 63 Miersia, 243
Miersiidæ, why discarded, 243
Milne-Edwards, Professor Al- phonse, definition of Crustacea by, 4; on a species of Ozius, 63; revision of Callianassidæ by, 183 Milne-Edwards, Profe sor Henri,
on development of Crustacea, 60; on the respiratory cavity of Ranina scabra, 140; history of Crustacea by, 437 Mimicry, by common shrimp and isopoda, 16; by species of Ebalia, 21; Antilibinia, 117; Parthe- nope, 121; Alpheus, 231; Eis >- thistos, 335, 363; Phreatoicus, 389
Minute species, 29, 232, 255, 275,
308, 328, 355, 379, 380, 382, 383 Mithrax, 120
Mocquard, M. F., on structure of
the Crustacean stomach, 147 Monaco, the Prince of, adventure
with the nipper crab, 68 Monocarpinea defined, 239 Montagu, Colonel, discovery of Callianassa by, 183; of Upo- gebia, 185; of a Cumacean, 292 Moresby, Captain, on the cocoanut crab, 157
Mother Lobster, the, 192 Mouldering, 83
Mound of crabs, 112 Mountaineering Crustacea, in As- cension Island, 14; in the Great Andes, 14, 429; in Jap-n, 14, 77; in Tasmania, 257; in Aus- tralia, 389; in the Philippines, 416
Mouth-organs, 39 Müller, Fritz, on olfactory organs, 37; on respiration in Ocypode, 86; on differences in land-crabs, 96; respiration of Aratus, 97; development of Penæus, 217 Munida, Rondeletii, rugosa, 176 Munidopsis, 177
Munna, 379; Boeckii, Fabricii, Kröyeri, limicola, maculata, neo-zclanica, pallida, palmata, Whiteana, 380 Munnopsidæ defined, 383
Munnopsis, australis, typica, 384
Musical or stridulating apparatus, 39, 64, 85, 92 Myodocopa, a suborder of Ostra- coda, 10
Myra, 128; fugax, 127, 128 Mysidæ defined, 266
Mysideis, 267; insignis, 274 Mysidella, 267; typhlops, typica,
273 Mysidopsis, 267, 273; angusta, didelphys, gibbosa, hibernica, 274
Mysis, 267, 269; arenosa, chamæ- leon, flexuosus, Helleri, inermis, Kervillei, Lamornæ, neglecta, ornata, Parkeri, spiritus, 270,271 Mysis-stage, of Penæus, 217 Myto Gaimardii, larval form of Sabinea, 228
NÆSA bidentata, 361 Næsicopea, new genus, abyssorum, 363 Nannastacidæ defined, 305 Nannastacus, Submii, unguicula- tus, 305; longirostris, Sarsii, 306 Nannoniscus, bicuspis, oblongus, 382
Napoleon in Egypt, 173
Nauplius, 213, 217, 222, 265, 279 Nauticaris, 234, 237 Nautilocorystes, 74, 76 Nautilograpsus,synonym of Planes, minutus, 95
Naxia, hystrix, 116
Neasellus kerguelenensis, 381 Nebalia, a genus of Phyllocarida, 31, 313
Nebaliopsis typica, size of, 31 Nectocrangon lar, synonym of Argis lar, 228
Nematocarcinidæ defined, 249 Nematocarcinus, ensifer, 249; al- tus, cursor, lanceopes, undula- tipes, 250
Nematopus (preoccupied), elegans, Goësii, obesus, 275 Nematoscelis, borealis, megalops,
Neomysis, 267; vulgaris, 271-
Neotanais, 324; serratispinosus, 327; lævispinosus, 328 Nephrops, norwegicus, Thomsoni,
Nephropsidæ defined, 201 Nephropsis, atlantica, Stewarti, 206
Nerocila, depressa, 351; Lovéni, munda, serra, 352
Nervous system, 2, 48; in Cyclo- metopa, 55; in Oxyrrhyncha, 104; in Cumacea, 300 Nesæa preoccupied, 361 Nika, Couchii, edulis, processa, 229 Nikidæ defined, 229 Nikoides Danæ, 230 Norman, Canon, on distribution, 66; on Axius stirynchus, 187; on Mysidæ, 271; on male Ta- naids, 327
Norman and Stebbing, on Isopoda of the Porcupine, &c., 326 Nothocaris, 238 Notophryxus,clypeatus, globularis, lateralis, ovoides, 400 Notopoides latus, 143 Notopus dorsipes, 143 Notostomus, 245; perlatus, 246 'Novara,' the, Crustacea of, 77 Nyctiphanes, australis, Couchii, norvegica, 263
OCCIPUT, in Oniscoidea, 435 Ocypode, 85; arenaria, ceratoph- thalmus, rhombea, 86; Fritz Müller's discusion of, 87 Ocypodidæ defined, 85 Ocypodiidea, alias Catometopa, 53 Oeidia, synonym of Gomeza, 76 Ethra, 154
Olaus Magnus, pictures from, 25 Old Man's Face Crab, 75 Olencira prægustator, 353 Oligoniscus monocellatus, 422 Olivi, pile of crabs described by, 111
Ommatocarcinus Macgillivrayi, 92 Oniscidæ defined, 425 Oniscoidea defined, 420
Oniscus, the original genus, 318;
paradoxus, 357; asellus, fossor, murarius, punctatus, Simonii, 430
Onychophora, a small class of Ar- thropods, 3
Oodeopidæ defined, 252
Oodeopus, 252; origin of the name, 253
Operculata, order or suborder of Cirripedes, 11
Ophthalmic segment, 34 Oplophorus typus, armature of, 244
Oppian, on Pinnotheres, 100; his ignorance of Squillidæ, 282 Orbits, 51
Orchestia, littoral species of, 16 Orchestidæ, short first antennæ of the Amphipod family, 36 Oreophorus, 130
Orithyia, bimaculatus, raammil- laris, 125
Orphania tenuimana, 252 Osachila, 127
Ostracoda, order of Entomostraca, 9; subdivision of, 10; a giant species of, 31 Ostraconotus, 166 Otoliths, 36, 37, 182, 196 Ouracharus caudatus, 432 Ourozeuktes, caudatus, canthi, Owenii, 355 Ova, of Corystes cassivelaunus, 74; of Eupagurus, 164; of Munidop- sis, 177; of Caridea, 224; of Schizopoda, 256; of Squillidæ, 288 Ovaries, of the Stomatopoda, 279; of the Cymothoidæ, 350; of the Entoniscidæ, 405; of Ergyne cervicornis, 414
Oxyrrhyncha defined, 104; spell- ing of the name, 105; manners of, 112; lead among Crustacea taken by, 118 Oxystomata defined, 123 Oyster Crab, the, 101
Oysters, eaten by the Shore Crab, 66; story of Pinnotheres and, 100 Ozius, ridges on endosteme of, 62; Edwardsi, 63
Pachygrapsus marmoratus, 94; parasite of, 407
Packard, Dr. A. S., on size of Phyl- locarida, 31
Pactolus Boscii, a made-up species, 106, 107
Paguridæ defined, 159
Pagurinea defined, 155 Paguristes, 166
Paguropsis, simply bent pleon of,
Pagurus, 159, 160; similimanus,
160; Bernhardus, cuanensis, Dilwynii, fasciatus, ferrugineus, Forbesii, Hyndmanni, lævis, Prideaux, striatus, tricarinatus, Thompsoni, ulidianus, 161; ar- rosor, megistus, 162; granu- latus, 163
Palægyge, 410; affinis, Bonnieri, Borrei, de Mani, fluviatilis, Hoyli, 411
Palæmon, 246; carcinus, 28; Fa- bricii, heterochirus, jamaicensis, lar, Leachii, minans, serratus, squilla, varians, 247 Palæmonella, tenuipes, orientalis, 247
Palæmonetes, exilipes, varians, vulgaris, 248
Palestine, isopods of, 376, 429 Palinosytus, synonym of Jasus, Hügelii, Lalandii, 196
Palinurellus, gundlachi, 197; hy- bridica, 198 Palinuridæ defined, 195
Palinurus, vulgaris, 27, 195; tu- midus, 27, 196 'Palp' (endopodal joints), of the mandibles, 39; of the first maxillæ, 295, 316, 318; of the first maxillipeds, 336, 340
Palp, alias exopod, of the third maxillipeds, 192, 194 Pandalidæ defined, 237 Pandalopsis, 238
Pandalus, annulicornis. breviros- tris, Montagui, narwal, 238 Panopeus, Benedict and Rathbun on the genus, 56
Pantopoda, alias Pycnogonida, sea-spiders, 3
Panulirus, author of, 197; penicil- latus, 35, 197
Paracrangon, second trunk-legs obsolete in, 225
Paracyclois,124; Milne-Edwardsii, 125
Paradoxides, genus of Trilobites, 27
Paralamprops, 295; serrato-cos- tata, 309 Paralomis, 154
Paramunna bilobata, 380 Paranephrops, planifrons, zealan- dicus, 210
Paranthura, 332; Costana, nigro- punctata, 333
Parapaguridæ defined, 166
Parapagurus, 166; pilosimanus, bathymetrical range of, 167; as- sociates of, 168
Parapasiphaë, 252
Parapseudes latifrons, 320
Parasites, 12, 17, 109, 128, 351, 353, 392
Parastacidæ defined, 209 Parastacus, 209
Paratanais, 323; Batei, forcipatus, rigidus, 327; linearis, 328 Paratelphusa, 77
Parathanas, decorticus, immatu- rus, 233
Paratya compressa, 241
Paratymolidæ defined by Haswell, 139
Paratymolus, 139 Paraxius, 188
Parerythrops, 267; obesus, 275 Pariambus typicus, amphipod of tribe Caprellidea, 22 Parthenope horrida, 121 Parthenopidæ defined, 120 Parthenopinea defined, 120 Pasiphaë, synonym of Pasiphæa, 245; princeps, 28
Pasiphæa, Savigny's account of, 251; cristata, sivado, 251; prin- ceps, tarda, 252
Pasiphæidæ defined, 251
Paulson, O, description of thely-
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