Acanthephyridæ, defined, 242 Acanthias vulgaris, devoured by isopods, 344
Acanthocope, acutispina, spini- cauda, 387
Acanthocyclus Gayi, 71 Acanthomunna proteus, 381 Acanthoniscus spiniger (family Oniscidae), 432
Acanthoniscus (preoccupied) ty- phlops (family Asellida), 378 Acanthoplax, 93
Acanthopus (preoccupied) clavi- manus, habits of, 98 Acanthosoma, a larval Sergestes, 221
Acetes, 221; indicus, found in the Ox-ray, 222
Achæus Cranchii, 106
Acicle, antennal scale or exopod, 146, 149, 155
Adamsia palliata, the hermit-crab's associate, 167
Ega, 348; bicarinata, rosacea, Strömii, tridens, 348; crenulata, emarginata, Lovéni, monoph- thalma, psora, Schioedteana, spongiophila, 349
Ægacylla, 349
Agathoa loliginea, 353
Ægidæ, how discriminated, 347 Agassiz, Alex., 29
Aka-oni-gani, 154
Alaotanais, priority of, considered, 324; serratispinosus, 327; lævi- spinosus, 328
'Albatross,' U.S.S., 28, 30 Albunea symnista, 152 Albuneidæ defined, 152
Alcirona, insularis, Krebsii, 346 Alcironidæ defined, 346
Alcyonium butchered to make a Maia's finery, 112 Alert,' H.M.S., 154 Alima, larval Squilla, 290 Alimerichthus,
barus, 209; suggested in Tana- idæ, 327
Alternation of sex in Cymothoidæ, 350, 355
Amalopenæus elegans, 219 Amathia (pre-occupied) Carpen- teri, 119
Amblyops, synonym of Amblyop- sis, 269
Amblyopsis, abbreviata, crozetii, 269
Amboina, present from king of, 29; species of Gonoplax at, 92 Amorphopus, 102, 103 Amphiplectus, 234, 237 Amphipoda, name of, 8; where found, 14, 16, 17, 22, 23; sizes of, 30; place in classification, 8, 291; compared with isopods, 390; isopods parasites on, 400; the suborder briefly defined, 436 Amphoroidea, australiensis, falci- fer, typa, 365 Anamathia, 119
Anapagurus, 161, 165; chiroacan
thus, ferrugineus, Hyndmanni, lævis, 161
Anarthrura, 325; simplex, linearis (?), 328
Anaspis, recently discovered genus of Schizopods, 257
Anceus, synonym of Gnathia, 300, 337, 338
Anchialus, 267; agilis, pusillus, typicus, 274
Anchistia, migratoria, 248; scripta, 249
Ancinus depressus, 365 Anebocaris, 242 Aniculus, 160
Anilocra, asilus, 352; gigantea, 29, 352 Anilocridæ, 351 Annulosa, 2
Annulus ventralis of Cambarus, 208
Anomala, tribe of Brachyura, de- fined, 133; tribe of Macrura, defined, 149
Anomura, position of, 8; apterura,
52, 133; pterygura, 146; reason for discarding, 147
Antennæ, first, alias antennules, 35; otoliths in, 36, 196, 248 Antennæ, second, alias outer, under, 38; stridulating appara- tus in, 39
Anthelura, 331; abyssorum, 333 Anthura, 331; flagellata, gracilis, tenuis, 333
Anthuridæ defined, 330
Antilibinia Smithii, tenacity of, 117
Anuropidæ, suggested new family, 344
Anuropus, 342; branchiatus, 345 Aphareus inermis, 212
Apoda, order of Cirripedes, 11 Apodemes, 133
Appendages, a single pair to a segment, 33, 42; names for the parts of, 36, 43
Apseudes, 320; grossimanus, Lat- reillii, simplicirostris, 321
Apseudidæ defined, 319
Apterura, meaning of, 133
of, 77; on the crab with the Pinna, 100; Carabos of, 195; on name for the lobster used by, 203; on a caridion in the shell of a Pinna, 241 Armadillididæ defined, 432 Armadillidium, album, alpinum,
Davidi, esterelanum, Kochi, Simoni, sordidum, vulgare, 434 Armadilloniscus, ellipticus, tuber- culatus, 431
Armature, of Oplophorus, 244; of claw and pleon in Squilla, 282; of carapace in female Cumacea, 294; of species of Arcturus, 370 Arms, Miss J. M., on the crusta- cean labium, 40; on the telson of Porcellana, 47; on the gait of a crab, 58
Artemia, the brine-shrimp, a Phyl- lopod, 14
Arthrobranchiæ, 134 Arthropoda, definition of, 2; classes of, 3
Asaphus tyrannus, a large trilo- bite, 27
Ascension Island, land-crabs at, 14 Asellidæ defined, 376; notes by Bovallius on, 377 Asellopsis preoccupied, 377 Asellota defined, 376
Asellus, 375; aquaticus, 13, 23, 377; communis, coxalis, 377 Aspidophryxus, peltatus, Sarsi, 399; Sarsi, parasitic Copepod on, 400
Astacidæ, discarded as a family name, 201
Astacidea defined, 199 Astacilla, 370; Cordiner's original account of, 371; damnoniensis, Deshayesii, dilatata, gracilis, granulata, intermedia, longi- cornis, 371; marionis, 372 Astacoides madagascariensis, 209 Astacopsis serratus, large Austra- lian crayfish, 28, 210
Astacus, misuse of name, 201; right use reasserted, 203; gam- marus, americanus, 203 Astrurus crucicauda, 381
Atattut, name of cocoanut crab in Amboina, 158 Atelecyclus, heterodon, septem- dentatus, 75
Athanas nitescens, 232 Athelgue, alias Athelgus, Athelges, 409; guitarra, paguri, Prideauxii, 409; Cardonæ, cladophora, in- termedia, lorifera, 410 Atya, remarkable hands of, 240; bisulcata, scabra, serrata, sul- catipes, 240 Atyephyra, 241 Atyidæ defined, 239 Atyoida, 240
Atys preoccupied, 240 Auditory apparatus, in first an- tennæ of Macrura, 36; in uro- pods of Mysidæ, 37; in Bra- chyura, 52
Audouin, Savigny's plates de- scribed by, 173; on Tylos La- treillii, 424
Aurivillius, Dr. C. W. S., on the manners and customs of the Oxyrrhyncha, 113, 114; on the associates of hermit-crabs, 168; on glands in Eupagurus, 169 Autonomoa, classification of, 253; Olivii, glaber, 253 Axiidæ defined, 187
Axius, 187; glyptocerus, 188; stirynchus, 187
BACON, Lord, natural knowledge in, 5 Bænosome, alias trunk, peræon, 45 Bait for Crustaceans, 21 Balanoglossus, position of, 2 Balanus, improvisus in fresh water,
17; psittacus of great size, 31 Barrois, Dr. Th., on Ozius Ed- wardsi, 63; on catching crabs, 94; Syrian woodlice collected by, 427
Barybrotidæ defined, 347 Barybrotes, agilis, Indus, 347 Basis, alias basipodite, second joint, 43
Bate, Mr. Spence, on ear-cavity
of lobster, 36; on the telson, 46; on young Pagurids, 164; on subdivision of Macrura, 180; on sensory and respiratory ap- paratus, 181; on the petasma, 215; on classification of the Schizopoda, 223; on uniform nomenclature, 255
Bate and Westwood, on Tanais and Apseudes, 329; on the Valvifera, 369
Bathymetrical distribution, 18 Bathynectes, longispina, superbus, 70; longipes, 71
Bathynomus giganteus, 29; eyes and branchiæ of, 344
Bathyplax, 93; typhlus, oculiferus, 103
Bathytanais, 324 Bathytropa, 429
Beddard, Mr. F. E., report on the Challenger' Isopoda by, 357; on eyes of Serolidæ, 359 Bell, Thomas, on telson of prawn, 46; on the genus Cancer, 57; on Vaughan Thompson, 59; on Milne-Edwards, 60; on Portum- nus and Platyonichus, 67 Bellia, 72
Bellon, Rondelet's criticism of, 281 Belt, Mr. T., on wide range of
freshwater species, 23
Beneden, M. P. J. van, finds Nau- plius of Cerataspis, 220 Benedict, Mr. J., on the genus Panopeus, 56
Bentheocaris exuens, an abyssal species, 245
Benthesicymus, deep range of, 19; pleocanthus, 219; eyestalk of, 220
Bentheuphausia amblyops, 264 subdivided sixth
joint in, 219 Benthonectes, subdivided seventh joint in, 219
Betæus, 232; æquimanus, malleo- digitus, microstylus, 233 Beurs-Krabbe, name explained, 158
Birgus the cocoa-nut crab, de-
scribed, 156; its names in va- rious languages, 158; its specific name latro originally belonging to Pagurus, 159
Bithynis, a synonym of Palæmon, 246
'Blake,' U.S.S., giant isopod found by, 29; Pylocheles Agassizii, taken by, 160 Blepharis, 181
Boas, Dr. J. E. V., on the first an- tennæ, 36, 37; on the position of the vulvæ, 139; the euky- phota of, 224; on the order Squillacea,' 278; on the legs. of the Isopoda, 316
Boddam-Whetham, Mr. J. W., on. cocoanut crabs, 157 Bodotria arenosa, 302
Boeck, Axel, numbering of leg- joints by, 43
Bondaroy, Fougeroux de, on Bo-- pyri, 392
Bonnier, M. Jules, on parasites of Macrura anomala, 174; his key to species of Galathea, 175: on Uroptychus rubrovittatus, 178 Bopyri, allusion to, 13, 128, 174 Bopyridæ defined, 408 Bopyrina, hippolytes, nitescens,. ocellata, virbii, 416 Bopyroides, acutimarginatus, 417 Bopyrus, Fougerouxi, Helleri, pa- læmonis, Rathkei, squillarum,. treillianus, xiphias, 415; (?) alphei, 416 Boreomysis obtusata, deep range of, 19; arctica, scyphops, 268; range and size of, 269 Boreophausia, synonym of Rhoda, inermis, Jardineana, Raschii, 263
Bosc, L. A. G., legend accepted by, 25; on crabs in Carolina,
91 Bovallius, Dr. C., on Thranites, 70; on Glossobius, 354; on Asel- lidæ, 377
Brachycarpus, 247
Brachyura, the suborder, 8; de-- fined, 51; subdivisions of, 53, 54-
Brady, Dr. G. S., on Ostracoda, 31 Brain, the, 33, 48, 299 Branchiæ, 4, 45; in Ocypode, 87; Sesarma, 97; distinguishing names of, 134; in Thalassina, 182; wanting in Mysidæ, 267; of the Squillidæ, 279; of the Cumacea, 296; in Bathynomus, 344; in Tylos, 423; in Helleria, 425 Branchiopoda, order of Entomos- traca, 9
Branchiura, sub-order of Branchio- poda, 10
Breathing apparatus, of Gnatho- phausia, 259; of Cumacea, 295; of cheliferous isopods, 318, 320; of Epicaridea, 394 Bregmocerella, synonym of Cerato- cephalus, tricornis, 365 Brongniartia, synonym of Serolis, trilobitoides, 357
Brook, Mr. G., on larval Euphau- siidæ, 265
Brooks, Professor W. K., on range of Squillidæ, 19, 280; develop- ment of Penæus, 217; characters of Squillidæ, 281; on larval Squillidæ, 288 Browne, Patrick, on West Indian land-crabs, 80, 83; on the Turtle- Crab, 95; Oyster-crab, 101: Mamma Shrimp, 145; Mother Lobster, 192
Budde-Lund, G., on the terrestrial Isopoda, 421, 423-426, &c. Bullar, Mr. J. F., on alternating sexes in Cymothoidæ, 350 Burrowing crustaceans, Chelura terebrans, 17; American Lady- Crab, 67; the Masked Crab, 73; Thia residuus, 75; American fiddler-crabs, 90, 91; Sesarma, 97; the mole-like Hippa, 150; Callianassa, 183; Upogebia, 185; Cambarus, 208; Squillidæ, 280; Lysiosquilla, 285; Limnoria lig- norum, 367
Bythocaris, 234; leucopis, nana, Panschii, Payeri, simplicirostris, 237
Calappa, depressa, gallus, granu- lata, 124
Calappidæ defined, 123 Calathura, 332
Callianassa, branchiæ of, 180; early description of, 183; lati- cauda, Stimpsoni, subterranea, 183 Callianassidæ defined, 183 Callianidea, pleopods of, 184 Calliaxis adriatica, 187 Calling Crab, the, 89
Calocaris, larval form of, 186; Macandreæ, habits of, 190 Calyptopis, larval stage of Eu- phausiidæ, 266 Calyptura (preoccupied), carnea, 366
Cambaroides accepted as
nus, 208; dauricus, japonicus, Schrenkii, 208
Cambarus, 207; alternating forms of male in, 209; argillicola, Bartonii, Diogenes, dubius, pel- lucidus, 208
Campbell, Lord George, on land- crabs, 94
Campecopea, hirsuta, mimicry by, 16, 363; Cranchii, 363 Camptoplax, 93
Campylaspidæ, 295, 313; defined, 306
Campylaspis, nodulosa, last legs
deficient in, 293; carinata, cos- tata, rubicunda, 307 Cancer, great restriction of the genus, 57; irroratus, pagurus, 58; borealis, 59; residuus, 75; ruricola, 80; marmoratus, 94; dormia, dormitator, 135; caninus, raniformis, 143; crumenatus,
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