A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc.

INDEX.

• Abdomen of the Balanidæ, 65.
• of larvæ in first stage, 108.
• in pupa of Alcippe, 548.
• Abdominalia, order of, 21, 563.
• Acasta, sub-genus, 302.
• cyathus, 312.
• fenestrata, 316.
• glans, 314.
• lævigata, 315.
• Montagui, 308, 492.
• purpurata, 318.
• spinulosa, 321.
• spongites, 308.
• sporillus, 319.
• sulcata, 310.
• tubulosa, 320.
• undulata, 313.
• Acorn shell, 33.
• Adductor scutorum, 53.
• Adna, genus, 354.
• Anglica, 360.
• Affinities of the Balanidæ, 152.
• Alæ, structure of, 37, 47.
• Alcippe, genus, 529.
• lampas (female), 530.
• lampas (male), 555.
• sexes of, 23.
• Anelasma, false, resemblance to Xenobalanus, 445.
• compared with Alcippe, 528.
• Antennæ of larva in first stage, 105.
• of pupa, 114.
• of Alcippe, 549.
• of Cryptophialus, 581.
• of Proteolepas, 601.
• Anus, 87.
• none in Proteolepas, 596.
• none in the male Alcippe and Cryptophialus, 546, 562, 585.
• Apoda, order of, 22, 587.
• Apodemes for the attachment of eyes of pupa, 120, 126.
• Apparatus, cementing, 133.
• Appendages, caudal, 65, 85, 479, 481, 491.
• in Verruca, 510.
• in Alcippe, 543.
• filamentary, to sack, 64.
• to limbs, 64, 83.
• Asemus, genus, 321.
• porosus, 329.
• Astrolepas, genus, 382.
• lævis, 396.
• rotundarius, 392.
• Attachment of Chelonobia to turtles, 390.
• of Coronula to whale’s skin, 411.
• of Tubicinella, 436.
• Baer, Von, on morphological differentiation, 19.
• Balanidæ, family of, 33.
• highest Cirripedes, 20.
• Balaninæ, sub-family of, 175.
• characters of, 152.
• Balanus, genus, 177.
• shell of, immediately after the metamorphosis, 41.
• supposed male of, 271.
• Ajax, 214.
• allium, 281.
• amaryllis, 279.
• amphimorphus, 494.
• amphitrite, 240.
• angulosus, 256.
• arctica patelliformis, 256.
• arcticus, 262.
• balænaris, 415.
• balanoides, 267.
• pupa of, 130.
• monstrous specimens with imperforate penis, 102.
• cementing apparatus of, 146.
• balanoides, 240, 493.
• bisulcatus, 293.
• Blainvillii, 231.
• borealis, 262.
• calceolus, 218.
• candidus, 277.
• Capensis, 209.
• carbonarius, 492.
• cariosus, 273.
• cassis, 218.
• cepa, 283.
• chelytrypetes, 394.
• clavatus, 261, 267.
• circinnatus, 492.
• communis, 231, 492.
• concavus, 235.
• cornubiensis, 231.
• corrugatus, 254.
• Coquimbensis, 227.
• costatus, 493.
• Cranchii, 231.
• crassus, 195, 493.
• crenatus, 261.
• crispus, 494.
• cylindraceus, 206, 235, 494.
• cymbiformis, 221.
• Cumingii, 335.
• declivis, 275.
• decorus, 212.
• delphinus, 494.
• dentiformis, 493.
• diadema, 417.
• discors, 227.
• dolosus, 295.
• d’Orbignii, 195.
• duploconus, 365.
• eburneus, 248.
• elongatus, 220, 261, 267.
• erisma, 296.
• fasciatus, 201.
• Finchii, 492.
• fistulosus, 267.
• flosculus, 290.
• galeatus, 104, 105, 220.
• geniculatus, 256.
• gigas, 210.
• glacialis, 261.
• glandula, 265.
• goissopomo, 495.
• Hameri, 277.
• Holgeri, 492.
• humilis, 495.
• imperator, 288.
• improvisus, 250.
• inclusus, 299.
• intertextus, 518.
• lævis, 227.
• lævis, 495.
• latiradiatus, 493.
• miser, 235, 494.
• Montagui, 308.
• navicula, 221.
• nigrescens, 210.
• nubilus, 253.
• ornatus, 493.
• ostrearum, 492.
• ovularis, 267, 494.
• patellaris, 259.
• patellaris, 494.
• pectinarius, 493.
• peregrinus, 492.
• perforatus, 231.
• upfilled parietal tubes of, 44.
• perforatus, 494.
• perplexus, 296.
• picos, 206.
• pictus, 493.
• plicarius, 493.
• plicatus, 337.
• pœcilus, 246.
• polythalamius, 392.
• porcatus, 256.
• porosus, 493.
• proteus, 492.
• psittacus, 206.
• punctatus, 267, 493.
• puncturatus, 337.
• pustula, 492.
• pustularis, 235, 493.
• pyramidalis, 494.
• quadrivittatus, 284.
• radiatus, 242, 494, 495.
• rhomboicus, 494.
• roseus, 279.
• rugosus, 261.
• sagittata, 493.
• Scoticus, 256.
• semiplicatus, 494.
• spongeosus, 308.
• spongicola, 225.
• spongites, 308.
• squamosus, 328, 494.
• stalactiferus, 329.
• stellaris, 494.
• striatus, 494.
• stultus, 216.
• sublævis, 493.
• sulcatinus, 293.
• sulcatus, 256, 493.
• terebratus, 285.
• tertiarius, 494.
• tesselatus, 256, 494.
• tintinnabulum, 194.
• varieties of, 201.
• tintinnabulum, eyes of, 93.
• nervous system of, 92.
• cementing apparatus of, 147.
• tintinnabulum, 195, 204, 206, 214, 493.
• trigonus, 223.
• tulipa, 195, 205, 277, 494.
• tulipiformis, 204.
• Uddevallensis, 277, 494.
• unguiformis, 296.
• varians, 298.
• verruca, 518.
• vestitus, 286.
• vinaceus, 213.
• virgatus, 494.
• vulgaris, 267.
• zonarius, 235, 494.
• Ball, Dr., on the attachment of Chelonobia, 392.
• Basis of shell, 49.
• cancellated in Bal. lævis, 230.
• perforated in Bal. terebratus, 285.
• hardly distinguishable in Bal. flosculus, 291.
• affected by adhering to corals, 301.
• surrounded by a ledge in Chthamalus, 452, 466, 467.
• Bate, Mr. C., on the spermatozoa of cirripedes, 99.
• on the larva of cirripedes, 103.
• on the excavation of Verruca, 514, 518.
• Bisexuality of cirripedes, 23.
• Boring powers of, in Verruca, 512.
• in Alcippe, 549.
• Boscia, genus, 354.
• Bosquet, M., Monographie, &c. 526.
• Branchiæ, 63.
• in Alcippe, 537.
• Brewster, Sir D., on lime and animal matter, 552.
• Bristles on membranes of shell and operculum, 59.
• Bronn, list of Balanidæ in his Index Palæont., 173.
• Burmeister on the rank of cirripedes, 17.
• branchiæ of Coronula, 64.
• labrum of Coronula, 77.
• reproductive system of cirripedes, 97, 100.
• larvæ in the second stage, 109.
• larvæ in the last stage, 114.
• Cæca, ovarian, 100.
• to stomach, 85.
• Calcar tergi, 52.
• Caligus, nerves of, 88.
• Canal, alimentary, 85.
• Carapace, homologies of, 131.
• of pupa, 112.
• aborted in Proteolepas, 595, 603.
• Carina, posterior compartment of shell, 39.
• Catophragmus, genus, 485.
• connecting link between the Balanidæ and Lepadidæ, 41.
• imbricatus, 490.
• polymerus, 487.
• Cement, tube of, proceeding from the pupal antennæ, 118.
• Cementing apparatus in the pupa, 118, 122.
• in the mature animal, 133.
• in Platylepas, 426.
• in Xenobalanus, 442.
• in Proteolepas, 599.
• organs of, in crustacea, 151.
• Cetopirus, genus, 397.
• Chamæsipho, genus, 470.
• columna, 470.
• scutelliformis, 472.
• Changes during growth in the Balanidæ, 128, 189.
• Characters, variability of, 155, 184, 197.
• value of, in the Balanidæ, 154.
• Chelonobia, genus, 382.
• caretta, 394.
• patula, 396.
• cementing apparatus of, 145.
• Savignii, 392.
• testudinaria, 392.
• Chirona, genus, 177.
• Chitine, 7, 58.
• Chthamalinæ, sub-family of, 446.
• characters of, 152.
• Chthamalus, genus, 447.
• antennatus, 460.
• cirratus, 461.
• dentatus, 463.
• fissus, 462.
• giganteus, 477, 192.
• glaber, 455.
• Hembeli, 465.
• intertextus, 467.
• scabrosus, 468.
• stellatus, 455.
• stellatus, 492.
• Ciliæ, not present in the articulata, 516.
• Circulation, 87.
• Cirri, their muscles and movements, 71.
• their structure, 81.
• their reparation, 158.
• in Acasta, with variable hook-like teeth, 306, 311.
• antenniformed in Chthamalus, 453, 460.
• variability in numbers of segments in Tetraclita porosa, 332.
• structure of, variable in Chamæsipho columna, 472.
• with one ramus, converted into a triturating button in Alcippe, 542.
• abdominal in Cryptophialus, 575.
• none in Proteolepas, 587.
• Cirripedia, their rank and affinities, 10 to 20.
• Cirripedes, how their position is acquired, 127.
• young, changes in, 128.
• sessile, 33.
• Clisia, genus, 496.
• striata, 519.
• Clitia, genus, 496.
• verruca, 519.
• Clysia, genus, 496.
• Coldstream, Dr., on the shells of cirripedes, 33.
• on a clicking noise, made by cirripedes, 64.
• Columellina, genus, 424.
• bissexlobata, 428.
• Compartments of shell, number of, 39.
• structure of, 43.
• Concholepas Peruviana, inhabited by Cryptophialus, 567.
• Conia, genus, 321.
• depressa, 337.
• Lyonsii, 343.
• porosa, 329.
• radiata, 343.
• rosea, 335.
• Conopea, genus, 177.
• remarks on, 190.
• elongata, 220.
• ovata, 218.
• Corals, effect of attachment to, in Balanus, 301.
• Coronula, genus, 397.
• balænaris, 415.
• cementing apparatus of, 135.
• barbara, 421.
• bifida, 423.
• bissexlobata, 428.
• Californiensis, 428.
• diadema, 417.
• nervous system of, 88.
• patula, 396.
• reginæ, 419.
• sulcata, 394.
• testudinaria, 392.
• tubicinella, 431.
• Coronula, genus, 382, 424, 430.
• Coronulinæ, sub-family of, 153.
• Coronulites diadema, 421.
• Creusia, sub-genus, 375.
• Childreni, 382.
• decorata, 382.
• grandis, 376, 381.
• gregaria, 376, 378.
• madreporarum, 367, 382.
• multistriata, 382.
• radiata, 382.
• spinulosa, 376.
• striata, 382.
• Strömia, 518.
• verruca, 518.
• Creusia rayonnante, 362.
• Creusia, genus, 354, 497.
• Cross-impregnation of Cirripedes, 102, 197.
• Crustacea, cementing organs of, 151.
• Cryptophialus, sexes of, 23.
• minutus (female), 566.
• (male), 584.
• Dana, Mr., on the classification of Crustacea, 11, 17.
• on centralisation in Crustacea, 19.
• on nerves of Caligus, 88.
• on the antennæ of the larvæ of cirripedes, 106, 114.
• on the conversion of mandibles into legs, 107.
• on the abortion of the segments of body, 111.
• on the distribution of Crustacea, 161, 167.
• Daphnia, organs of hearing, 114.
• eyes of, 121.
• moulting of, 157.
• Daracia, Genus, 354.
• monticulariæ, 372.
• Linnæi, 374.
• Denticuli, on the parietal septa, 43.
• Deposit, calcareous, inorganic in chamber of Alcippe, 552.
• Depths at which cirripedes live, 163.
• Diadema, genus, 397.
• bifida, 492.
• vulgare, 492.
• Du Cane, Capt., on the larvæ of Crustacea, 108.
• Edwards, Prof. Milne, on the classification of Crustacea, 11, 17.
• on the lengthening and shortening of the limbs in Crustacea, 14, 73.
• on the ‘tige’ and ‘palpe’ of the limbs, 83.
• on the sclerodermic plates of the Carapace, 35.
• on the Carapace, 131.
• on general classification, 529, 565.
• Elminius, genus, 345.
• Kingii, 348.
• cementing apparatus of, 146.
• Leachii, 348.
• modestus, 350.
• plicatus, 351.
• simplex, 353.
• Epidermis, so called, 58.
• Epithelium of stomach, 86.
• Epizoons (male), 27.
• Euraphia, genus, 447.
• Hembeli, 465.
• Excavation, powers of, in Verruca, 512.
• in Alcippe, 549.
• Exuviation of the pupal membranes, 123.
• in the mature animal, 157.
• in relation to the habits of cirripedes, 56.
• anomalous in Isaura, 13.
• Eye of larva in first stage, 104.
• Eyes of pupa, 119.
• of pupa, their exuviation, 126.
• in pupa of Alcippe, 549.
• the metamorphoses of, in Cirripedes, 120.
• of Balanus, 93.
• Female organs, 100.
• Flabellum of limbs, 83.
• Food of Cirripedes, 87.
• Fouet of limbs, 83.
• Fræna, ovigerous, homologous with branchiæ, 65.
• Fræna, ovigerous, modified in Alcippe, 537.
• Generation, organs of, 97.
• Geography of Cirripedes, 159.
• Geological history of Cirripedes, 172.
• Glands for cement, 138.
• Gnathites, structure and muscles of, 75, 77.
• Goodsir, Mr., on the larvæ of Cirripedes, 103, 108.
• on his male Balanus, 271.
• Gray, Dr., on the homologies of sessile and pedunculated Cirripedes, 34.
• on the Coronulinæ, 153.
• on marks on the shell of a Balanus, produced by growing on wood, 185.
• on the structure of Chthamalus, 448.
• Growth of shell, 54.
• changes during, 128, 189.
• rate of, 156.
• of shell in Tubicinella, 436.
• Habits of Cirripedes, 159.
• Hancock, Mr., on the action of the cirri, 14.
• on the excavations of Verruca, 512, 516.
• on Alcippe, 530.
• on the excavations of Alcippe, 549.
• Hanley, Mr. S., on Bal. Hameri, 277.
• Hearing, organs of, 95.
• Hectocotyle, 23.
• Hepatic system, 86.
• Hermaphrodite condition of Cirripedes, 23.
• Hippolyte varians, larvæ of, 108.
• History, geological, of Cirripedes, 172.
• Homologies of Cirripedes, 102.
• of the carapace and valves, 131.
• of body in Proteolepas, 595.
• Horner, Mr., on lime and animal matter, 552.
• Horsford, Dr., on the setting of lime, 553.
• Ibla, sexes of, 23.
• Imbedment of Chelonobia in turtles, 390.
• of Coronula in whale’s skin, 411.
• Impregnation, mutual, of Cirripedes, 102, 197, 271.
• Injuries, reparation of, 158.
• Interbreeding possible in Cirripedes, 102, 197.
• Isaura, not moulting its carapace, 13.
• Jaws, movements of, 76.
• Joly, M., on the Isaura, 13.
• on the larvæ of Caradina, 106.
• Jones, Dr., on the liver in Daphnia, 86.
• Jussieu, Adrien, on classification, 528.
• Karsten on the testes and ovaria of Cirripedes, 98, 100.
• on supposed hepatic organs, 86.
• Kölliker on the spermatozoa of Cirripedes, 99.
• Labrum, structure of, 75.
• remarkable, in Alcippe, 540.
• moveable, in Cryptophialus, 572.
• Lamellæ, ovigerous, 101.
• in Xenobalanus, 444.
• Lamina, internal of wall of shell, cancellated, 213.
• Larvæ, first stage, 103.
• second stage, 109.
• during their early stages, egg-like in Cryptophialus, 579.
• last or pupal stage, 110.
• Leach, Dr., on the Coronulinæ, 153.
• Legs of pupa, 121.
• Leidy, Dr., on the eyes of Balanus, 94.
• Lepadidæ, family of, 526.
• Lepas angusta, 231.
• angustata, 231.
• australis, pupa of, 110.
• balanoides, 231, 240, 267.
• balanus, 231, 256.
• borealis, 251.
• caretta, 394.
• cariosa, 273, 329.
• cœrulescens, 342.
• columna, 470.
• costata, 256.
• crispata, 195.
• depressa, 455.
• diadema, 417.
• fascicularis, cement, float of, 118.
• fistulosus, 231.
• foliacea, 261, 277.
• fungites, 329.
• galeata, 220.
• Hameri, 277.
• minor, 240.
• mitra, 344.
• ore angustiore, 231.
• radiata, 240.
• patellaris, 259.
• porcata, 195.
• porosa, 329.
• psittacus, 206.
• punctatus, 455.
• purpurascens, 337.
• purpurea, 241.
• Scotica, 256.
• spinosa, 195.
• spongiosa, 308.
• spongites, 308.
• stellata, 455.
• striata, 518.
• Strömia, 518.
• testudinaria, 392.
• tintinnabulum, 194, 235.
• tulipa, 204, 277.
• verruca, 518.
• Lesson on the Triton, 158.
• Limbs of pupa, 121.
• Limbus occludens in Pyrgoma, 54.
• Lime, tendency to harden with animal matter, 552.
• Limulus, nervous system of, 88, 90.
• Linnæus on the Triton, 158.
• Lithotrya, powers of boring, 535.
• Liver, 86.
• Lyell, Sir C., on Bal. Uddevallensis, 277.
• Male organs, 97.
• of Alcippe lampas, 555.
• of Cryptophialus minutus, 584.
• Males of Cirripedes, 23.
• of Cirripedes, not of much classificatory importance, 566, 586.
• Manatee, with Platylepas attached to the skin, 427.
• Mandibles structure of, 76, 79.
• reversed in Proteolepas, 589.
• Maxillæ, structure of, 76, 80.
• reversed in Proteolepas, 590.
• Megatrema, genus, 354.
• Anglica, 360.
• semicostata, 374.
• Membrane, covering the shell, 58.
• opercular, 58.
• Messula, genus, 177.
• Metagenesis, 124.
• Metamorphoses in the Thoracica, 102.
• of Alcippe, 548.
• remarkable, in Cryptophialus, 579.
• Moulting of the pupal membrane, 123.
• in the mature animal, 157.
• Mouth, structure of, 74, 78.
• of pupa, 121.
• none in the male Alcippe and Cryptophialus, 562, 585.
• suctorial in Proteolepas, 589.
• Movements of the cirri, 71.
• Muscles of attachment of the body to the operculum, 68.
• of the sack, 62.
• of the thorax, 69.
• of the cirri, 71.
• of the jaws, 76.
• of sack, weak in Chelonobia, 389.
• Nerves splanchnic, 91.
• Nervous system, 88.
• Nobia, genus, 354.
• grandis, 365.
• Nomenclature, rules of, 204.
• Ochthosia, genus, 497.
• Stroemia, 519.
• Octomeris, genus, 482.
• angulosa, 483.
• augubra, 483.
• brunnea, 484.
• Stutchburii, 483.
• Œsophagus, 85.
• in the pupa, 121.
• with teeth, in Cryptophialus, 577.
• Operculum, 50.
• remarkable, in Pyrgoma, 356.
• remarkable, in Verruca, 497.
• Orders of Cirripedes, 20.
• Organs, acoustic, 95.
• of pupa, 113.
• of reproduction, 97.
• for cementing, 133.
• in the pupa, 122.
• Orifice of shell, 38.
• Otolithes absent in Crustacea, 97.
• Ova, sizes of, 101.
• Ovaria, 100.
• incipient, in pupa, 122.
• occupy a chamber in the shell in Coronula, 411.
• in Proteolepas, 597.
• Owen, Prof., on Metagenesis, 124.
• on vegetative repetition, 20.
• Pachylasma, genus, 475.
• structure of alæ, 36.
• giganteum, 172, 477.
• aurantiacum, 480.
• Palpi, structure of, 75.
• absent in Alcippe, 540.
• peculiar in Cryptophialus, 572.
• in Proteolepas, 590.
• Parasite, allied to Bopyrus, 102.
• Parietes of shell, 43.
• internal lamina of, cancellated, 213.
• perforated in Acasta, 305.
• with numerous rows of pores in Tetraclita, 323.
• much folded in Coronula, 399.
• Penis, probosciformed, 99.
• imperforate, 102, 271.
• its reparation, 159.
• of wonderful length in Cryptophialus, 586.
• Perforations in shell of Acasta, 305.
• Phyllosoma, affinities to cirripedes, 18.
• Platylepas, genus, 424.
• bissexlobata, 428.
• decorata, 429.
• cementing apparatus of, 143.
• pulchra, 428.
• Pœcilasma Kæmpferi, 499.
• Pollicipes compared with sessile cirripedes, 34, 41, 52.
• Polylepas, genus, 397.
• Polytrema, genus, 321.
• Position of cirripedes, how acquired, 127.
• Potash, caustic, action on shell, 56.
• Primordial valves, 129.
• Prosoma, part of thorax, 67.
• Proteolepas bivincta, 589.
• Pupæ of cirripedes, 110.
• Pupa without natatory legs in Cryptophialus, 580.
• Pyrgoma, genus, 354.
• Anglicum, 360.
• cancellatum, 362.
• conjugatum, 364.
• corymbosa, 374.
• crenatum, 370.
• dentatum, 369.
• grande, 365.
• lobata, 362
• milleporæ, 367.
• monticulariæ, 372.
• spongiarum, 374.
• stellata, 374.
• Stokesii, 361.
• sulcatum, 360, 492.
• undata, 492
• Radii, structure of, 37, 45.
• remarkable, with outer lamina of great thickness in Chelonobia, 385.
• compound in Coronula, 405.
• in Xenobalanus, 441.
• Rami of the cirri, their movements and homologies, 71, 83.
• modified in Alcippe into triturating organs, 542.
• Range, geographical, of cirripedes, 159.
• Rathke, on the position of the anus in young Crustacea, 109.
• on the cementing organs of Crustacea, 151.
• Rectum, 87.
• Reparation of injuries, 158.
• Reproduction of cirripedes, 97.
• Respiration of cirripedes, 64.
• Rostrum, anterior compartment of shell, 39.
• not symmetrical in Chelonobia caretta, 383.
• compounded in Chelonobia, 386.
• in Pachylasma, 478, 481.
• not quite medial in Platylepas, 424.
• Rules of nomenclature, 204.
• Sack, 61.
• muscles of, 62.
• formation of, 124.
• Sacks, acoustic, 95.
• olfactory, 97
• Savignium, genus, 354.
• Scalpellum, sexes of, 23.
• vulgare, larvæ of, 103
• Schödler, on organs of hearing in Daphnia, 114.
• Schumacher, date of memoir, 321.
• Scuta, their structure, 51.
• Scutum, with horny articular ridge in Chelonobia, 388.
• remarkable from great adductor ridge and occludent ledge in Pyrgoma, 356.
• fixed in Verruca, 502.
• Sections, transverse, of shells of Balanidæ, 39.
• Segments of body in cirripedes, 111, 125.
• in Alcippe, 537.
• in Cryptophialus, 571.
• Senses of cirripedes, 94.
• Septa, longitudinal, of the parietes, 43.
• Sexes of cirripedes, 23.
• Sheath of shell, 38, 48.
• peculiar in Tubicinella, 432.
• remarkable in Chelonobia, 385.
• Shell of a sessile cirripede compared with the shell of the Lepadidæ, 34, 41, 52.
• of sessile cirripede compared with the carapace of Crustacea, 35.
• elements of, 37.
• sheath of, 38, 48.
• orifice of, 38.
• compartments of, 39, 43.
• immediately after the metamorphosis, 41.
• walls of, or parietes, 44.
• radii of, 37, 45.
• alæ of, 37, 47.
• basis of, 49,
• operculum of, 50.
• growth of, 54.
• minute structure of, 57.
• membranes of, 58.
• sack of, 61.
• with tubular perforations in Chamæsipho, 473.
• almost rudimentary in Xenobalanus, 441.
• asymmetrical in Verruca, 499.
• minute structure of, in Verruca, 506.
• Shells of mollusca excavated by Verruca, 512.
• excavated by Alcippe, 549.
• Siebold, Von, on Syngamus trachealis, 23.
• on the abdomen of cirripedes, 65.
• on the cæca of the stomach in Crustacea, 86.
• on the vision of cirripedes, 94.
• on the acoustic organs of Crustacea, 97.
• on the spermatozoa of cirripedes, 99.
• on the eyes of cirripedes, 121.
• Siphonicella, genus, 438.
• Size of cirripedes in relation to temperature, 162.
• Sowerby, Mr. G. B., on the species of Balani having cup-formed bases, in the southern hemisphere, 192.
• Sowerby, Mr. G. B., jun., on an inorganic deposit in connexion with a Pholas, 553.
• Species, variability of, 155, 184, 197.
• Spermatozoa, 98.
• Spur of tergum, 52.
• St. Ange, M. M., on the mouth of cirripedes, 19, 76.
• on the reproductive system of cirripedes, 97, 100.
• on the nervous system, 92.
• Stomach, 85.
• none in Proteolepas, 596.
• none in the male Alcippe and Cryptophialus, 562, 585.
• Stomopoda, affinities to cirripedes, 19.
• Straus, on the affinities of cirripedes, 9.
• on the moulting of Daphnia, 157.
• Structure, microscopical, of shell, 57.
• peculiar in Verruca, 506.
• Stutchbury, Mr., on the shell of Chelonobia, 386.
• Syngamus trachealis, 23.
• System, muscular, of the body and cirri, 62, 68, 71, 76.
• alimentary, 85.
• circulatory, 87.
• nervous, 88.
• reproductive, 97.
• Temperature, effects of, on cirripedes, 161.
• Terga, their structure, 51.
• Tergum, occludent ledge and shape of, in Pyrgoma, 356.
• fixed in Verruca, 503.
• Testæ valvæ, 39, 43.
• Testes, 97.
• development of, in Proteolepas, 598.
• Tetraclita, Genus, 321.
• cœrulescens, 342.
• costata, 339.
• porosa, 328.
• upfilled parietal tubes of, 44.
• purpurascens, 337.
• radiata, 343.
• rosea, 335.
• serrata, 333.
• squamulosa, 329.
• vitiata, 340.
• Thoracica, order of, 21, 30.
• Thorax of the Balanidæ, 66.
• of pupa, 85.
• rudimentary, in the male Alcippe, 562.
• Tige of limbs, 83.
• Triton of Linnæus, 158.
• Tubicinella, genus, 430.
• cementing apparatus of, 143.
• trachealis, 431.
• balænarum, 431.
• Lamarckii, 431.
• major, 431.
• maxima, 172, 438, 492.
• Turtles, with their carapaces perforated by Chelonobia, 391.
• with Platylepas attached, 427.
• Unisexuality of cirripedes, 23.
• Vagina or sheath, 38, 48.
• Valves, opercular, 50.
• of shell, 39, 43.
• primordial, 129.
• homologies of, 131.
• Van de Hoeven on Limulus, 88, 90.
• Variation of characters, 155, 184, 197.
• in Tetraclita, 327.
• in Chthamalus, 459.
• Verruca, genus, 496.
• cancri Americani, 396.
• lævigata, 520.
• nexa, 522.
• prisca, 525.
• Spengleri, 521.
• Strömia, 518.
• Verruca testudinaria, 392.
• Verrucidæ, family of, 495.
• Vesicle, acoustic, 95.
• Vesiculæ seminales, 98.
• Vesicula seminalis, compound in Proteolepas, 598.
• Vision of cirripedes, 94.
• Wagner, R., on the reproductive system of cirripedes, 97, 99.
• Walls of shell, 43.
• Water, brackish, effects of, on cirripedes, 163.
• Whales’ skin, growth of, into the shells of Coronula, 413.
• perforated by Tubicinella, 436.
• Xenobalanus, genus, 438.
• globicipitis, 440.
• Zenker on the eyes of Daphnidæ, 121.
• Zoosperms, 98.