Volume 1

Text-book of embryology / edited by Walter Heape.

Date:
1914-
Catalogue details

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: Text-book of embryology / edited by Walter Heape. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    Sabellilormia, 123, 154 Minea, Mysis larva ol', 215 Sacculi, iormatioa ot,m Antedon rosacea, 552 Suijartia imrasitica, 85 Saijitta bipunctata, development of, 428-435 Salamaader, cliauges induced in by changes iu environment, 651 Salivary glands, formation of, in CalUdina runseola, 424 ; in Lolir/o, 358, 364 ; in Peripatus capen'sis, 175 Salpa, 637, 639, 640 ; development of, 635, 636 Scapliopoda, 291 ; ancestors of, 368, 369 ; development of, 325-329 Scarabaeidae, 277 Schizocoele, formation of, in Polygordius appmdicidatus, 160 Scliizopoda, 177, 185, 192, 202, 210, 213, 216, 218 Scirtopoda, 418 ' Scleroblasts of Grantia, 43 Scoleciformia, 128, 153 Scolopendra, 285 ; developnient of, 281-284 Scorpion, 221 ; development of, 239-241 Scorpiouidea, 221 Scutum, formation of, iu Cirripedia, 202 Scyllarus, 214 Scyphistoma, 72, 75 ; of Aurelia, 70 Scypliozoa, 78, 79, 96, 16,6, 661 ; develop- ment of, 67-76 Sea-anemone, definition of, 87 Sea-spiders, 242 Sea-urcliin, eggs of cross-fertilized with foreign sperm, 17 Second maxilla in Astacus, 186 Second maxillary segment in Donacia, 252 Second polar body, definition of, 9 Second somatoblast in segmenting egg of Dreissensia, 335 ; in segmenting ol Nereis, 156 Secondary body-cavity, equivalent to coelom, 165 Secondary dorsal organ, formation of, in Donacia, 247, 259 Secondary germ - cells, formation of, in Donacia, 263 Secondary gill-slits, formation of, iu larva of Amphioxus lanceolalus, 604 Secondary madreporite, formation of, in Synapta digiUda, 539 Secondary mesenchyme, formation of, in Ophiolhrix fragilis, 487 Secondary mesoderm, formation of, in egg of Astacus, 181 Secondary radial plates, formation of, iu Aiitediin rosacea, 556 Secondary stomodaeum, formation of, of CalUdina russeola, 423 Secondary stone - canals, formation of, in Antedon rosacea, 557 Seconilary trochoblasts, formation of, iu embryo of Crepidv.la, 321 ; in embryo of Fiona, 321 ; iu emliryo of PateJIa, 297 : in embryo of /'Iw.sriilosiima, 375 Secondary yolk pyramids, foruiation of, iu egg of Astacus, 183 Segmentation-cavity, 165 Segmentation of coelom of Aslerina gibbosa, 472, 473 Segmentation of the egg, definition of, 27 Segmentation of the egg of Agelew., 223 ; of ^-1 mpliioxus lanceolalus, 586, 687, 588 ; of Antedon rosacea, 546 ; of A scar is megaloceiihcda, 440-443 ; of AsUicus, 179, 180 ; ol Asterias, 460 ; ol Aurelia avrilu, 68 ; of Balanoglossus clavigerus, 570 ; of Beriie, 89-92 ; of Branchipius, 194 ; of Ccdlidina russeola., 419-421 ; of Cere- bratidus lacteus, 119 ; ol Gucumariapilanci, 541 ; of Cyntkia partita, 612-614; of Dentalium, 326-328 ; of Dolichoglossus pusillus, 683 ; of Donacia and of Dory- p>hora, 246 ; of Dreissensia, 333-338 ; of Echinus escnlentus, 506, 507 ; of Eu- phausia, 192; of Geryonidae, 67 ; of JJolothiiria tubulosa, 541 ; of Julus, 284 ; of Lepas, 195 ; of Macrobiotus, 243 ; of Membranipora, 387 ; of Nepihelis, 160 ; of Ophiothrio: fragilis, 486 ; of Pallene, 243 ; of Paludina, 310 ; of Patella, 292- 295 ; of Pedicellina, 398 ; of Peripiatvs ccqiensis, 170 ; ol Phascolosoma, 373-375 ; of Planocera inquilina, 104- 109; of Polygordius, 131-139 ; of Polyphemus, 193 ; of Pyrosoma, 632 ; of Sagitla bipunctcda, 428, 429 ; of Salpa, 635 ; of Scolopendra, 281; of the Scorpion, 239; of Sepia, 354 ; of Sycandra rcqjhanus, 37, 38 ; of Synapta digitata, 530 ; of Tere- bratulinct. septentrionalis, 408 ; of Tubu- laria mesembryanthemum, 54; of Urticina crassicornis, 77 Segmentation of mesoderm, cause of, in Annelida, 166 Segments, formation of, iu embryo of Agelena, 225 Sense-tentacle, formation of, in A urelia, 1% Sensory-plate of larva of Aslcrias, 461 Sepia officinalis, 353, 354, 366 Septa, formation of, in Caryophyllia cyathus, 87 Septal funnels, formation of, in larva of Aurelia, 70 Serosa, formatiou of, in embryo of Donacia, 247 ; in embryo of Doryphora, 261 ; in embryo of Lepisma, 265 ; in embryo of Machiles, 265 ; iu embryo of the Scorpion, 240 Serpulidae, 416, 520 Sertularia, development of gonophore bud of, 62 Sex-chromosomes, 13, 15 Sexual germ, delinitiou of, 2 Shell, formatiou of, in Acmaea, 304 ; in Dentalium, 329 ; in Dreissensia, 339 ; in Fissurclla, 305 ; in Halioli-'s, 305 ; in Loligo, 357 ; in Cyphonautes larva of Membranipora, 392 ; in Naulilin, 35* ;
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