INDEX OF GENERA AND SPECIES. 



303 



Page. 



Narica 212,214 



tliegoana 50, 2 J 'J, 214, 221 



Nassa 212,214 



intastriata 212 



interstriata 214 



pedroana 313,214 



Natica 208,210,211,212,213,214, 



217, 219, 223, 226, 236 



acutispira 48 



alabamiensis 221 



alveata. . . ., 31 1, 213, 221 



ambigaa 14, 48 



collina 319 



concinna 13 



erecta 221 



geniculata 313, 214 



gibbosa 21 1. 213, 221 



inezana 50, 217 



indurata '... 308 



nelia 336 



limnla 219 



miiiLma 221 



moreauensis ,,». 14 



obliquata 13 



occidentalia 14, 231 



ocoyana 313, 214 



oetites? 211,213 



orientalis 310 



paladm^Bformis 13 



saxea 306 



?scalari8 310 



subcrassa 15 



syriaca 208 



texana 319 



tuomeyana 16, 48 



NaticidsB 102,111,132,264 



Naticina obliqua 221 



Naticopsis 25, 27, 46, 80, 86, 132, 136, 



152, 164, 165, 179 



aequistriata 80 



altonensis 86, 152 



hollidayi 35 



' (Idonearca) Lumilis 80 



levis 67,80 



littonana var. genevievensis 40 



monilifera 152, 165 



nana 46,132,179 



nodosus 35 



(Platyostoma) aequistriata 67 



remex 136, 164 



subovatus 86 



(Trachydomia) nodosa 4G 



var. hoUi- 

 dayii .. 46 



ventrica 86 



■wheeleri 86,179 



var 152 



Nautilidae 33, 63, 104, 121, 132, 265 



Nautilina 106 



Nautilus. . 25, 27, 29, 33, 39, 42, 45, 46, 65, 74, 84, 92, 93 

 104, 132, 144, 165, 179, 245, 258, 2G5 



(?) 258 



angustatus 50, 306 



campbelli 37, 93 



chesterensia 35, 45 



Page. 



Nautilus (Cryptooeras) capax 39, 92 



? leidyi 39 



rockfordensi.s 40 



springeii 131 



danviUensis 144, 105 



dekayi 104 



var. luontanaensis 104, 265 



digonus 42 



(Discites) disciformis 39, 84 



omatus var. amplus. ... 39 



(Discus) digonus . 35 



plauorbifomiis 35 



sangamonensis. 



trisulcctus 



divisus 



elegans 



var. nebrascensis 



(Endolobus) peramplus . 



spectabilis . . 



35 

 35 



121 

 104 



29 

 39 



45 



eccentricus 19, 20, 33 



forbesianua 179 



globatus 45 



lamarckii 222 



lasallensia 39, 87 



missouriensis 179 



occidentalis 74 



planorbiformia 46 



ponderoaua 74 



sangamonensia 46 



(Solenocheilus) collectus 65, 84 



leideyi 84 



spectabilis 35 



subglobosus 35 



(Temnocheilus) coxanus 84 



latus 87 



niotensis 39, 84 



■winalowi 87 



(Temuochilus) coxanus 65 



latus 65 



winslowi 65 



tenui-planatus 337 



(Trematodiacus) sulcatus 40 



trisulcatus 42 



winslowi 179 



Navicula bacilum 229 



scalprum 229 



semen 229 



sificula 229 



Sigma 229 



Nea3ra 101, 260, 263, 264, 272 



aequiva] vis 373 



fibrosa 48 



longirostra 360, 263 



moreauensis 101, 264 



ventricosa 101 



Neithea 215,218,266 



occidentalis 315, 218 



quinquecostata 266 



texana 218 



Nematocrinus 40 



Nemoarca 267 



cretacea 267 



Kemocardium 99 



Nemodon 98,267 



angulatom 2C7 



