INDEX OF GENERA AND SPECIES. 



277 



Ammonites Ion tioularis 250 



leonensis 319 



libanensis iJlO 



marciaua ii33 



moreaueusis SJ50 



mullananus 39 



3 J mullananus 107 



nebrascensia S850 



newberryanus 17, 93 



novl-mexicana 343 



opalus 350 



peracultus 274 



percariuatus 14, 245 



peruvianua 243 



pickeringi 227 



placenta, var. intercalaris 21 



dekayi, var. intercal- 

 aris 135 



pleurisepta 319 



safedensis 309 



(Scaphites?) ramosus 19" 



serrato-carinatus 66 



shumardi 34.*$ 



swallovii 159 



syriacus 308 



texanus 219 



vancou verensia 37 



vermilionensis 31 



vespertinus 353 



Ammonitidaj 35, 104, 135, 263, 265 



Amorpliozoa 41 



Ampplita 107 



Amphicoelia 56 



neglecta 56 



Amphidiscus armacus 229 



Amphion 191 



nevadensis 191 



Amphistegina 120 



Amphora libyca 229 



Amphoracrimis ...42, 54, 82 



divergens 54, 82 



? spinobrancbiata 82 



subtarbinatus 42 



Amplexus 121, 136, 155, 163, 223 



coralloides ? 243 



fragilis 131 



yandelli 156 



zaphrentiformis 136, 160 



Ampullaria 197 



powelli 180,188,197 



Ampullina alveata 221 



Amusinra <■ . 266 



conradi 366 



simplicum 266 



Amnssium 35 



aurarium 33 



propatulum 49 



Anadara ? canalis 50 



? congesta 50 



incile 50 



microdonta 50 



protracta 50 



trigintinaria 50 



trilineata 50 



Anarthrocanna australis ' 337 



Anatina claibomensis 220 



Anatinidfe 30, 32, 34, 100, 109, Hi, 134, 261 , 



262, 264, 271 



Anchura .94, 102, 111, 127, 134, 137, 143, 264 



biangulata 48 



(DrepanochLe]ilus) americana 48, 102 



decemlirata ... 48 



mudgeana 143 



nebrascensis. .48, 102, 

 264 



prolabiata 143 



rostrata 48 



ruida 143 



? Uusilormis 111,134 



haydeni 1 43 



newberryi 94 



nuptialis 125,137 



parva 48,102 



prolabiata 137 



ruida 137 



?sublajvis 48,102,264 



Ancillaria elongata 222 



Anoillopsis altile 222 



Ancylidse 106 



Ancyloceras 104,209,261,205 



annulatum 159 



?cheyenensis 15 



(Hamites) uncus 19 



jenneyi 361,265 



? nebrascensis 15 



nicoUetii 14 



safedensis 309 



tricostatus 361, 265 



? uncum 104 



AncyloceratidsB 104 



Ancylus 112 



undulatus 65,112,166,170 



Angulus 100 



Animalia 129 



Anisomyon 30, 102, 112, 134, 143, 264 



alveolus 21,102,264 



borealis 21,102,134,264 



centrale 70,134,143 



inaequicostatus 48 



patelliformis 20, 21, 102, 264 



se.^sulcatus 21, 102. 112 



shumardi 102 



subovatus 21, 102, 264 



Anisopoda 46 



Anisorhynchus 101 



Anisothyris 101 



Anisus 34,106,108 



Annularia 149 



longifolia 149 



Annulata 35 



Anodonta 140,160,272 



? angustata 167 



? cattskillensis 167 



corpulentoides 272 



decurtata 170 



grandoides 272 



parallela 140,160,168, 



propatoris 139,160,168 



Anodontop.sis 79,194 



amygdalseformis 194 



