967 



Sipho (Gastr.) 506. 



Siphonaria 216, 218. 



8 iphonarioidea 472. 



Siphonina 612. 



Siphonophora 270, 344, 690. 



Siphonops 608, 797. 



Sipbonozooide 489. 



Sipunculidae 755. 



Sira 790. 



Siredon 258, 329, 885. 



Siren 328, 660. 



Sirenites 385. 



Sisyphus 504. 



Sitala 553. 



Sittidae 256. 



Sivella 190. 



Skeletoblastisches Gewebe (Pise.) 338. 



Skeletogenes Gewebe (Amph.) 334. 



Slimonia 829. 



Sminyothrips 846. 



Sola/riella 555. 



Solen 365. 



Soleuogastres 1 53. 



Solenomya 212. 



Solenopleura 522. 



Solenopora 895. 



Solenopus 154. 



Sol pug idea 903. 



Somateria 183. 



Somatogene Dift'erenzierung (Formic.) 17. 



Somatopleura (Av.) 510 



Sommer-Landoi s'sche Zellen (Cest.) 400. 



Sorex 366. 



Spadella 143. 



Sparganophilus 654. 



Spatangidae 177. 



Species 148, 424. 



Speichel (Ins.) 633. 



Speicheldriisen (Gastr.) 507, 656, (Ins.) 

 498, 847, - (Nemat.) 208. (Nemert.) 

 93, -- (Placopb.) 159, -- (Solenog.) 156, 



- (Tremat.) 354. 



Spengel'sche Organe (Placoph.) 159. 

 Sperchon 426, 530, 610. 



Spergo 212. 



Sperrnatbeca (Gastr.) 875. 



Spermatiden 411, 811. 



Spermatoblasten 413. 



Spermatocyten 411, -- (Gastr.) 810, -- (Ins.) 



266, 299, - - (Pise.) 268. 

 Spermatogenese 81, 257, 270, 409, 473, 809. 

 Spermatogonien 81, 193, 411, 810. 

 Sperm atophoren (Annul.) 402, - (Arach.) 



903, - - (Gastr.) 600. 

 Spermatozoen 302, 411, -- (Annul.) 196,- 



(Crust.) 809, (Echin.) 191, 386, 398, 



- (Gastr.) 473, 508, 809, (Leptoc.) 198, 

 - (Myzost.) 302, (Nemat.) 134, 201, 



(Nemert.) 809. 



Spermien, siebe: Spermatozoen. 

 Spermioblasten 811. 

 Spermophilus 367, 842. 

 Spermoviduct (Gastr.) 163. 



Sphacelaria 312. 



Sphare 196, 388. 



SphaerecMnus 259. 



Sphaerium 555. 



Sphaerocystis 456. 



Sphaerodoridae 855. 



Sphaeroidina 391, 525. 



Sphaeronella 864. 



Sphaeronellidae 864. 



Sphaeronis 457. 



Sphaeronites 456. 



Sphaeronitida 456. 



Sphaerospira 552. 



Sphaerozoa 853. 



Sphaerozoum 687. 



Sphegomyrmex 149. 



Sphenodon 408, 537. 



Sphinctomyrmex 149. 



Sphinetrella 394. 



Sphiugidae 68, 634. 



Sphodrus 791. 



Spieie der Thiere 1. 



Sp Hog aster 173. 



Spinaluerven (Vert.) 29, 701. 



Spiudel (Kerntheil.) 87, 134, 265, 274, 284, 

 297, 311, 854, 900. 



Spindelmuskel (Gastr.) 25, 507, 600, 605. 



Spiimdrusen (Ins.) 151, 502, (Myriop.) 280. 



Spinther 729. 



Spionidae 279, 725, 855. 



Spirastrell i dae 894. 



Spiridmonea 901. 



Spirillina 391. 



Spirillinidae 352. 



Spiroboloidea 631. 



Spirochona 257, 309, 642, 890. 



Spirochouidae 890. 



Spiroloculina 391, 526, 612. 



Spiroplecta 391. ^ 



Spiroptera 207. 



Spirostreptoidea 631. 



Spirotoxon 602. 



Spiroxia 484. 



Spirula 24, 873. 



Spi ru 1 idae 379. 



Spongia Syst. 391, 451, 483, 556, 613, 

 689, 911, - Faun. 167, 392, 425, 426, 

 451, 454, 483, 613, 689, 892, Biol. 689, 

 892, - - Morph. 393, 483, 836, 891, 

 Skel. 393, 451, 454, 612, 837, 893, 

 Fortpfl. 454, 689, - - Histol. 836, -- Ent- 

 wickl. 835. - - Foss. 556, 893, 894, 895. 



Spongilla 425, 690. 



Spongin 454. 



Spongioplasma 810. 



Sponyodictyon 315. 



Spongosorites 483. 



Sporocysten (Tremat.) 359. 



Sporozoa Syst. 226, Biol. 226, 228, 

 279, 621, 910, Fortpfl. 58, Entwckl. 

 450. 



Sporozoiten 58. 



Sporulation 347, - - (Rhizop.) 679. 



