INDEX TO GENERA AND SPECIES. 



489 



Ammonites, Jamesoni, Sowerby ; see Aegoceras Jamesoni . 



.. ,> angustus, Quenstedt ; see Aegoceras Jamesoni 



,, ,, latns, Quenstedt ; see Aegoceras Jamesoni 



„ Johnstonii, Sowerby ; see Aegoceras Johnstonii 



„ Jurensis, Zieten ; see Lytoceras jurense 



„ kridion, Hehl ; see Arietites semicostatus 



„ lacunatiis, Buckman ; see Aegoceras lacunatum 



„ lamellosus, d'Orbigny ; see Aegoceras Taylori . 



„ laqueolus, Schloenbach ; see Aegoceras laqueolus 



„ laticnsta, Quenstedt ; see Aegoceras brevispina 



„ „ Sowerby ; see Aegoceras laticosta 



,, laxicosta, Lamarck ; see Aegoceras planicosta 



„ Leckenbyi, Lycett ; see Lytoceras hircinum 



,, Levisoni, Simpson ; see Harpoceras Levisoni . 



„ Uassicus, d'Orbigny ; see Aegoceras laqueolus 



„ lineatus, Oppel ; see Lytoceras fimbriatura 



,, ,, Schlotheim ; see Harpoceras striatulum 



„ ,, Schlotheim ; see Lytoceras lineatum 



,, „ var.^m5na<a«, Quenstedt ; «ee Lytoceras fimbriatum 



„ polymorphus lineatus, Quenstedt ; see Aegoceras polymorphum 



„ Loscombi, Sowerby ; see Phylloceras Loscombi 



,, Lythensis, Young and Bird ; see Harpoceras Lythense . 



,, Macdonellii, Portlock ; see Arietites nodotianus 



„ maculatns. Young and Bird ; see Aegoceras capricornus 



„ ,, angulatiis, Wagener ; see Aegoceras curvicorne 



„ maeandrusi Zieten; «ee Amaltheus oxynotus 



„ Mmigenesti, d'Orbigny ; see Aegoceras Maugenesti 



„ miles, Simpson ; see Aegoceras armatum 



,, multicostatus, Sowerby ; see Arietites bisulcatus 



„ Moorei, Lycett ; see Harpoceras Aalense 



„ Moreanutn, d'Orbigny ; see Aegoceras Moreanum 



„ Mulgravius, Young and Bird ; see Harpoceras serpentinum 



., natrix, Roemer ; see Arietites semicostatus 



,. „ Schlotheim ; see Arietites Conybeari . 



» ,, Zieten ; see Aegoceras brevispina 



). ,, o6Zo«^;<s, Quenstedt ; «ee Aegoceras subrauticum 



» » rotundus, Quenstedt ; see Aegoceras brevispina . 



„ nauUliles, Baier ; see Phylloceras heterophyllum 



„ negtectus, Simpson ; see Aegoceras gagateum . 



„ mtescens, Young and Bird ; see Harpoceras nitescens 



„ nitidus, Young and Bird ; see Lytoceras cornucopia 



,, nodosaries, Wagener ; see Arietites semicostatus 



„ nodotianus, d'Orbigny ; see Arietites nodotianus 



,, nodulosus, Buckman ; see Arietites Conybeari 



„ Normanianus, d'Orbigny ; see Harpoceras Normanum . 



,. ,, Oppel ; see Harpoceras nitescens 



„ obliquatus, Young and Bird ; see Harpoceras variabile . 



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