490 



INDEX TO GENERA AND SPECIES. 



Ammonites oblique-costatus, Hauer. ; see Arietites rotiformis 



„ „ interruptus, Schiibler ; see Lytoceras hercinum 



„ obtusus, Sowerby ; see Arietites obtusus 



„ opalinus, Quenstedt ; see Harpoceras opalinum 



„ oxynotus, Quenstedt ; see Amaltheus oxynotus 



„ ovatus, Young and Bird ; see Harpoceras ovatum 



,, paradoxus, Zieten ; see Amaltheus margaritatua 



„ personatns, Simpson ; see Arietites Scipionianus 



„ petfos, Quenstedt ; see Aegoceras pettos 



„ Phillipsii, Simpson ; see Harpoceras iusigne . 



„ planicosta, Sowerby ; see Aegoceras planicosta 



,, planorbis, Sowerby ; see Aegoceras planorbis . 



„ polymorphus, Quenstedt ; see Aegoceras polymorplium 



,, polyophyllus, Simpson ; see Amaltheus oxynotus 



,, primordialis, Schlotheim ; «ee Harpoceras opalinum 



„ prohoscidens, Zieten ; see Aegoceras Taylori . 



„ psilonotus, Quenstedt ; see Aegoceras planorbis 



,, quadricornutus, Simpson ; see Aegoceras Taylori 



,, Quenstedti, Schafhault ; «ee Arietites nodotianus 



„ radians, Zieten ; see Harpoceras radians 



,, „ amalthei, Oppel ; see Harpoceras nitescens 



„ ,, costula, Quenstedt ; see Harpoceras costula 



„ ,, depressus, Quenstedt ; see Harpoceras striatulum 



,, radiatus, Simpson ; see Arietites impendens . 



„ Ha quinianus, A' Orhigny ; see Stephanoceras Raquinianum 



„ raricostatus, Zieten ; see Arietites raricostatus 



„ Redcarensis, Young and Bird ; see Aegoceras angulatum 



,, Regnardi, d'Orbigny ; see Aegoceras Jamesoni 



„ resupinatus, Simpson ; see Arietites Sauzeanus 



„ Robinsoni, Simpson ; see Amaltheus oxynotus 



,, rotiformis, Sowerby ; see Arietites rotiformis . 



„ rotula, Haan ; see Amaltheus margaritatus 



„ rugatulus, Simpson ; see Harpoceras Aalense 



„ Sampsoni, Portlock ; see Aegoceras planorbis . 



„ Sauzeanus, d'Orbigny ; see Arietites Sauzeanus 



„ Scipionianus, d'Orbigni ; see Arietites Scipionianus 



„ semicostatus, Young and Bird ; see Arietites semicostatus 



„ serpentinus, Schlotheim ; see Harpoceras serpentinum 



„ sigmifer, Phillips ; see Harpoceras Aalense 



„ Simpsoni, Bean ; see Amaltheus Simpsoni 



„ S»iiM«, Sowerby, see Arietites obtusus 



„ spinaries, Quenstedt ; see Arietites Sauzeanus . 



„ „ Wagener ; see Arietites semicostatus 



„ s/iJna^MS, Bruguifere ; see Amaltheus spinatus 



„ stellaris, Sowerby ; see Arietites stellaris 



,, Stohesi, Sowerby ; see Amaltheus margaritatus 



„ Strangewaysi, Sowerby ; see Harpoceras serpentinum 



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