INDEX. 



Page 



Acidaspis halll 230 



hamata 227 



Acknowledgments 18 



Actinocrinid;\i , development 148 



generalized type ]49 



Actinocrinus 185 



plan 159 



Actinocrinns, ajqualis — 179 



fequibrachiatus 181 



ajqulbrachiatuB, var. alatus 181 



araneolus 194 



arrosus 186 



asterias 1S9 



asteriscns 181 



bitnrbinatus 184 



blairi 189 



brevicornis 165 



brevis 167 



brittsi 188 



buUatus 168 



calyculoides 177 



carica 176 



chloris 187 



chonteauensis 169 



christyi 181 



clypeatus 179 



ccBlatus 187 



concinnUB ; 194 



corbulis 175 



corniciiltis 187 



cornigeruB 172 



coronatUB 176 



davidsonl 104 



delicatuB 190 



desideratuB 171 



divaiicatue 172 



divergens 166 



dodecadactylus 188 



doris 179 



erraticus 1 87 



eryx 189 



euconus 1 84 



evansi 164 



fossatns 188 



glanB 189 



■ gouldi 173 



inornatUB 179 



jngosus 190 



konincki 178 



lagina 185 



lanra 182 



leucosla 176 



liratus 191 



lobatus 190 



longirostris 180 



lowei 189 



minor 165 



miBBissippienBis 174 



misBoariensis 171 



mnltiradiatUB 188 



nashvillffi 183 



Page 



nesticiiB 188 



nodOEiUB 187 



obesiiB 187 



oblatns 182 



ornatus 192 



nashvillas, var. snbtractiiB 183 



f apillatuB 179 



parvus 171 



pendens 169 



pentagonus 195 



pemodosns 190 



planobasaliB 166 



planodiscns 184 



proboscidians 185 



py riformis 182 



quadrispinuB 166 



quaternariUB 185 



quaternaiiuB, var. spiniferus 185 



quinquelobus 172 



regalia 193 



remibrachiatus 178 



reticnlatas 186 



rotundns 182 



Bcitulns 188 



Bculptus 194 



sedaliensis 225 



senariuB 192 



silllmani 188 



Bpeciosns 193 



subacnleatUB 170 



eubturbinatuB 171 



BubumbrosuB 191 



BnbventricoBUS 192 



superlatns 165 



symmetricTis 170 



tenuisculptuB 187 



thalia 187 



themiB 185 



tricornis 169 



trinodns 171 



turbinatus, var. elegans 180 



nmbrosns 190 



unicornis 169 



urnajformis 178 



validns 194 



ventricosus 192 



vernenilianus 177 



verrucosus 189 



wachsmuthi 188 



wbitei 164 



A ctinozoa 92 



Actiniirus boltoni 226 



JEsiocrinuB basiliscuB 220 



harii 219 



magniflcuB 220 



Agaricocrinns americanus 168 



blairi 167 



brevis 167 



cbouteauensis — 167 



excavatuB 168 



germanus 167 



