848 



Oncaea com/era 676. 



Onchidia 333. 



Onchidiopsis 776. 



Onchocotyle 392, - - spinacis 395. 



Oncidiella 332. 



Oncidium 332, - - celticum 332. 



Oniscomorphe Myriopoden 530. 



Oniscus 279. 



Onychodactylus 85, 123. 



Onychoteuthis 220. 



Oodeopus 707. 



Oogeuese 349. 



Oologie 64, 96, 128, 443. 



Ootyp 394. 



Opercula (Cirripedia) 470. 



Opercularia epistyliformis 747. 



Operculina 585. 



Opheomorphus 222 



Ophidia 61, 65, 123, 124, 125, 181, 182, 



183, 184, 192, 221, 223, 512, 662, 789, 



790, 796, 798. 

 Ophidiaster attenuatus 20, 639, helicostichus 



523, ophidianus 20. 

 Ophioaethiops 523. 

 Ophiocoma punctata 525. 

 Ophiocomis forbesi 20, 639. 

 Ophiocten abyssicola 639. 



Ophioderma antillarum 523, brevicauda 523, 



propinqua 523. 

 Ophioglypha 145, albida 20, bullata 



42 , carnea 639 , grandis 42 , 



grubei 20 , sowrwra 42 , tesselata 



42. 



Ophiohelix elegans 523. 

 Ophiolophus 523 

 Ophiomaza cacaotica 523. 

 Ophiomyxa pentagona 639. 

 Ophiopsila aranea 639. 

 Ophiothrichidae 143. 

 Ophiothrix abbilgardi 524, alopecurus 524, 



639, echinata 20, 524, - - fragilis 20, 



524, lusitanica 524, pentaphyllum 

 524. 



Ophisaurus 60, 791. 



Ophiulus 117, pilosus 116. 



Op hi ur idea 39, 40, 42, 145, 197, 523, 629. 



Ophryoessa 792. 



Ophryotrocha 257, puerilis 257, 400. 



Ophthalmophorien 482. 



Opilio parietinum 505. 



Opisthobranchiata 172, 333, 595. 



Opisthobranchie 174. 



Opisthocomus 671, cristatus 380. 



Opisthogoneata 351. 



Opistoma 491, 689, pallidum 391, 689, 



schultzeanum 391, 689. 

 Upponierbarkeit des Daumens 480. 

 Optische Farben (Lepidopterenschuppen) 655. 

 Oralstiick (lusecta) 592. 

 Orbita (Mammalia) 480. 

 Orbitolina sphaerulata 36. 

 Orbitolites 107, complanata 106, 455. 

 Orbitolitidae 301. 



Orbulina 76, 299, 487, 585, universa 8. 



Orbulinidae 75. 



Orchesella villosa 353. 



Orchcstia litorea 204. 



Orcula 550. 



Oreodon 479. 



Oreodoiitidae 480. 



Orgauanlagen (Regeneration) 464. 



Organbildungeu (Regeneration) 464. 



Organes postautennaires (Thysauura) 352. 



Orgyia 215, 680, - - antiqua 216, 356. 



Oribatidau 207, 283, 535. 



Orientieren kleiner Ubjecte 461. 



Orinomus 281. 



Ornithopoda 125. 



Ornithorhynchus 320. 



Ornithosuchus 798, - - woodwardi 798. 



Orphnaeus 47, 155, 282, brevilabiatus 531. 



Orthalicus 548. 



Orthezia 252, 311. 



Orthezinae 311. 



Ortheziola 311, -- vejdovskyi 311. 



Ortho-Neuropteriden 656. 



Orthocrinus 640, simplex 640. 



Orthogonioptilum 215. 



Orthomorpha 531. 



Ortboneurie 174. 



Orthoptera 28, 46, 49, 163, 164, 247, 250, 

 284, 285, 289, 298, 353, 462, 537, 593, 

 629, 651, 653, 715, 717, 766, 767, 768. 



Orthotomus panayensis 186. 



Orthotriaeneu 636. 



Ortygomelra minuta 306. 



Oryctes 118. 



Os odoutoideum 377. 



Oscanius hilli 515. 



Oscarella 236. 



Osmerus eperlanus 277. 



Osmia jucunda 250. 



Ospbradialganglion 173. 



Ospbradium 482. 



Osteolaemus 790. 



Osteosarcom (Keruteilung) 740. 



Ostiumwulste 88. 



Ostracoda 675, 678. 



Ostracum (Gastropoda) 577. 



Ostrea edulis 343, 776, stenlina 776. 



Othilia aculeata 389. 



Otoconcha 322, 547. 



Otocorys o.lpestris 478, - - penicillata 127. 



Otocryptops 47, 155. 



Otocysten (Annelides) 400, (Gastro- 

 poda) 571, (Schizopoda) 499, 

 (Trematodes) 391. 



Otolith (Ascidiae) 362, (Hydrozoa) 

 561, (Pisces) 430, (Schizopoda) 

 499. 



Otolitheublase (Schizopoda) 499. 



Otolitheukern (Scbizopoda) 499. 



Otoplana 341, intermedia 695. 



Otostigma 47, 155. 



Otostomus 548. 



Ototyphlonemertes 146. 



