15G 



Oniscia cylhara 6, 55 



verrucosa 6, 55 

 Oniscus convexus 5, 871 1 

 Onthophagus ovatulus 



7, 1641 

 urus 7, 1641 



Oolith im Aargau 5, 157b 

 südöstlichen Alpen 



8, 437b 

 Bildung desselben 



9, 327 b 

 cf. Jurageb. 



Opal 1, 107 r; 2, 631 ; 

 3, 97; 4, 209b} 



5, 608b; 6, 151; 

 8, 561 r. 827 b 



Operculina granulosa 



6, 521 

 taurinensis 6, 52 1 



Opbileta complanata 

 5, 6191 

 lavata 5, 6191 



Ophidierreste 2, 179 b 



Ophiocalcen 6, 364 b 



Ophioderma tenuibra- 

 chiata 5, 501 1 



Ophiura 4, 542; 5, 95 

 cretacea 5, 501 1 

 granulosa 0, 660 b 

 Murrayi 5, 501 1 

 Prässi 5, 501 1 

 scutellata 4, 56 

 subcylindrica 0, 661b 



Opilio 5, 873 

 ovalis 5, 872 1 

 ramiger 5, 872 1 



Opis 3, 68 b 



Oplotherium 1 , 461 ; 



2, 486b; 5, 124 

 laticurvatum 2, 487 

 leptognathum 2, 487 



Orbicula 0, 60. 93; 1, 136 

 antiquissima 3, 843 

 concentrica 1, 552 

 corrugata 6, 109 

 Forbesi 9, 1261 

 grandis 7, 750 

 min uta 7, 749 

 Morrisi 9, 1261 



Orbicula nitida 1, 769 

 parmulata 6, 107 1 

 squamiformis 6, 109 

 speluncaria 4, 736 

 subrugosa 1, 138 

 Verneuilli 9, 1261 



Orbiculina universa 3, 569 



Orbignyana 2, 573 b 



Orbignyana ovata 



2, 573b 

 Orbitulites lenticulata 



1, 656 

 Orbitoides americana 



8, 587 

 mecfia 8, 587 

 papyracea 8, 587 



Orchesia 5, 873 

 Organismen, geologische 

 Folge derselben 



9, 381b 

 mikroskopische 3, 499b; 



4, 378b. 379b. 507b; 

 8, 618 b; 9, 758 b 



Orgeln geologische 



5, 513b : 6, 456 b 

 Oribates convexulus 



5, 8721 

 politus 5, 8721 



Ormoceras 1, 611 b 

 Backi 1, 6111 

 Bayfieldi 1, 611 1 

 Withei 1, 611 



Ornithichnites , 485 b; 

 1 , 739 b; 2, 320 r. 



2, 456 r; 4, 248 b 

 Culbertsoni 6, 762 b 

 Danae 5, 754b. 757 

 Deani 5, 757 

 Delicatulus 5, 757 

 divaricatus 5, 757 

 elegans 5, 757 

 eiegantior 5, 757 

 expansus 5, 757 

 giganteus 5, 757; 



6, 125 b 

 gallinuloides 6, 762 b 

 gracilior 5, 757 

 gracillimus 5 , 757; 



754b 



fulicoides 5, 757 



ingens 5, 757 



isodactylus 5, 757 



Lyelli 5, 757 



macrodactylus 5, 757 



minimus 5, 757 



Redfieidi 5 , 754b; 757 



Rogersi 5, 757 



tenuis 5, 757 



tetradactylus 5, 757 

 Orkan in Belgien 2, 597r 



Lausanne 2, 597 r 

 Orodus compressus 8, 753 1 



porosus 8, 7531 

 Orthacanthus Decheni 



7, 404b 



Orphinea 0, 246 

 Orthis 1 , 136. 769; 



6, 217 r. 377 b 

 actoniae 5, 6211 

 aequalis 5, 62 ll 

 aequivalvis 9, 1251 

 alternata 5 , 620 1; 



6, 379 

 anomala 6, 378 

 arachnoidea 3, 780 

 analoga 6, 379 

 ascendens 6, 378 

 asella 6, 379 

 Asmusi 6, 378 

 basalis 6, 378; 9, 127 

 biforata 9, 125 

 biloba 9, 125 

 Bouchardi 9, 1251 

 Bronni 2, 543 b 

 Buchi 2, 544 b 

 callactis 1, 770 

 calligramma 6, 378; 



9, 125 

 canalis 3, 596; 6, 108. 



109 ; 8, 101 

 cincta 6, 378 

 circulus 6, 108 

 convexa 6, 379 

 costata 8, 3751 

 crenistria6, 378 ;8, 101. 



227 



Davidsoni 9, 125. 127 

 deltoidea 6, 379 

 depressa 6, 379 

 distorta 6, 379 

 dilatata 6, 325 

 Dutertrii 6, 379 

 elegans 6, 377 

 elegantula4, 43 : 6, 109. 



378; 8, 101; 9, 125. 



127 



excavata 2, 578b; 



4, 736 

 eximia 6, 378 

 exteusa 6, 378 

 euglypha 6, 379 

 filosa 9, 125 

 Fisrheri 6, 379 

 flabellulum 3, 597; 



6, 108 

 formosa 9, 125 

 funiculata 9, 125 

 hemipronites 6, 378 

 hirundo 2 ? 545b 

 hybrida 6 , 109 . 378 ; 



8, 101 ; 9, 125. 



127 



