INDEX OF NOMENCLATURE. 



Page. 



Acacia 92 



Agave 92 



heterocanlha 94 



Ammonites 1 1 . 94 



Amceba 79-82 



Amphipleura pellucida 79 



Area II 



Asaphus gigas 3 



Aturia Vanuxemi 12 



Baculites 1 1 , 94 



Belemnitella mucronata 10 



Berberis trifoliata , 92 



Bryozoa 85 



Bulimulus elongatus 151 -152 



multilineatus 1 52-1 53 



Cardiospermum 92 



Cardium n 



Celtis occidentalis 92 



Ceratodus 146 



Chimjera 145 



Chondropoma Tortolense. . . . 150 

 Chrysotis canifrons, n. sp. . . . 151 



Cionella Gloynei ... 152 



Cistula . 1 5 i-i 53 



consepta, n. sp 150 



maculata, n. sp 152 



Raveni 151 



Coccosteus 144 



Conulus 152 



Crassatella Delawarensis. . . . 12-13 



Ctenodus 145-146 



Cucullaea 11 



Cylindrella 1 52-153 



Raveni 152 



Cyprina Morrisii 12 



Cypselidse i 



Dasylirion Texanum 93 



Dinichthys 147 



Diplognathus 147 



Dipterus 146 



Echinarachnius parma 26 



Page. 



Echinorhynchus 8 



Eozoon I 



Eschara digitata 12 



Exogyra costata 10 



Formicivora griseigula, n. sp. 151 



Fouquieria splendens 92 



Geostilbia 152 



Gnalhodon 141 



Giyphsea 94 



Pitcheri 85 



vesicularis 10-13, 85 



Guyacum Coulteri 92 



Habranthus 92 



Helicoceras 94 



Helix pentodon 153 



Holacantha 92 



Inoceramus 94 



Juglans rupestris 92 



Lamna 85 



Larrea Mexicana 92 



Limulus 8 



polyphemus 106-107 



Macroceramus 1 52-1 53 



Gossei ... 152 



inermis 152 



Modiola plicatula 141 



Montlivaltia Atlantica 12 



Mosasaurus 11 



Mylostoma 145 



variabilis, n. sp 146 



Terrelli, n. sp 147 



Neithea Mortoni 10 



Natica 26 



Nautilus 94 



De Kayi 12 



Nucleolites crucifer 12-13 



Opuntia 92 



Ostrea 26, 94 



borealis 141 



larva 10 



Paledaphus 146 



