12 
INDEX TO NEW GENERA AND SUBGENERA. 
Octomma, Willem, Ins. 303 
Odontonycteris, JentinJc, Marnm. 29 
Odontojjhotopsis, Viereck, Ins. 182 
(Edebasis, Hampson, Ins. 228 
(Ederastria, Hampson, Ins. 228 
(Edicentra, Warren, Ins. 238 
(Eophronistes, Blackburn, Ins. 116 
Oistosomum, Odhner, Verm. 59 
Olbiorchilus, Oberholser, Aves 59 
Olbodotes, Osborn, Mamm. 38 
Oligobiotherium, Ameghino, Mamm. 
44 
Oligocrinus, Springer, Ech. 85 
Oligoneurus, Szepligeti, Ins. 197 
Olympiocapsus, Kirkaldy, Ins. 277 
Omocycla, Tschitscherine, Ins. Ill 
Oncodocnemis, Rebel, Ins. 238 
Oningis, Simon, Arachn. 48 
Onychosaurus, Nopcsa, Pept. 23 
Opandrena, Robertson, Ins. 176 
Opaon, Kirby, Ins. 311 
Ophionotus, Bell, Ech. 81 
Ophiophycis, Koehler, Ech. 81 
Ophiosteira, Bell, Ech. 81 
Opifex, Hutton, Ins. 256 
Opuna, Kirkaldy, Ins. 277 
Orbione, Bonnier, Crust. 55 
Orchestridoptera, Sjostedt, Ins. 308 
Oreocrabro, Perkins, Ins. 182 
Oreomyias, Reichenow, Aves 56 
Oreothalia, Melander, Ins. 259 
Ornitheza, Speiser, Ins. 266 
Ornithoctona, Speiser, Ins. 266 
Ornithopertha, Speiser, Ins. 266 
Oronomiris, Kirkaldy, Ins. 277 
Orophocotyle, Looss, Verm. 60 
Orphnodella, Spaeth, Ins. 168 
Orsima, Simon, Arachn. 48 
Orthagoriscicola, Poche, Crust. 67 
Orthogeniops, Ameghino, Mamm. 42 
Ortholfersia, Speiser, Ins. 266 
Orthutaetus, Ameghino, Mamm. 43 
Oryctogale, Merriam, - Mamm. 33 
Oryxa, Melichar, Ins. 282 
Osmophila, Szepligeti, Ins. 197 
Otomonas, Leger, Prot. 81 
Otomphalus, Cossmann, Moll. 78 
Otonomysops, Ameghino, Mamm. 
38 
Outeniqua, Peringuey, Ins. 130 
Oxynautilus, Mojsisovies , Moll. 58 
Oxypolella, Bergendal, Verm. 45 
Oxytella, Weise, Ins. 171 
Pachybiotherium, A meghino, Mamm. 
44 
Pachycentris, Friese, Ins. 177 
Pachycnemida, Peringuey, Ins. 131 
Pachyfornax, Fleutiaux, Ins. 135 
Pachylepisma, Schrammen, Spong. 
26 
Pachymelas, Tschitscherine, Ins. Ill 
Pachypoessa, Simon, Arachn. 48 
Pachysphsera, Brandt, Prot. 72 
Pachyzaedyus, Ameghino, Mamm. 43 
Padillothorax, Simon, Arachn. 48 
Pagaronia, Ball, Ins. 287 
Pagurias, Benedict, Crust. 42 
Palsemonias, Hay, Crust. 47 
Palseocardia, Ameghino, Mamm. 38 
Palaeoedalea, Meunier, Ins. 107 
Palseohilarimorpha, Meunier, Ins. 
107 
Palseoparamesia, Meunier, Ins. 107 
Palseopipiza, Meunier, Ins. 107 
Pakeopsammia, Wanner, Coel. 28 
Palseoschisma, Donald, Moll. 79 
Pahepanorthus, Ameghino, Mamm. 
44 
Paleologus, Distant, Ins. 273 
Pancorius, Simon, Arachn. 48 
Pancra, Swinhoe, Ins. 229 
Pannona, Lbrenthey, Moll. 74 
Paonidia, Meyrick, Ins. 229 
Parabderites, Ameghino, Mamm. 44 
Paraboeckella, Mrdzek, Crust. 67 
Parabroteas, Mrdzek, Crust. 67 
Paracastalia, Kerremans, Ins. 134 
Paracerithium, Cossmann, Moll. 73 
Paracheenichthys, Boulenger, Pisces 
25 
Paraclilidorhinus, Se?ma, Ins. 159 
Paracoccidium, Laveran and Mesnil, 
Prot. 77 
Paracopium, Distant, Ins. 272 
Paracromna, Melichar, Ins. 282 
Paradmontia, Coquillett, Ins. 262 
Paragathia, Warren, Ins. 238 
Paragelocus, Schlosser, Mamm. 40 
Paragrubia, Chevreux, Crust. 59 
Paralces, Allen, Mamm. 39 
Paralichthodes, Gilchrist, Pisces 27 
Paralimnus, Matsumura, Ins. 287 
Paralobites, Mojsisovies, Moll. 57 
Paralytoceras, Freeh, Moll. 57 
Paranautilus, Mojsisovies, Moll. 58 
Paranthomyza, Czerny, Ins. 264 
Paranura, Axelson, Ins. 303 
Paraparmarion, Collinge, Moll. 61 
Parapliacodes, Belon, Ins. 163 
Paraphlseoba, Bolivar, Ins. 312 
Parapliractura, Boidenger, Pisces 37 
Paraplanocera, Laidlaw, Verm. 48 
Parapolichne, Bolivar, Ins. 308 
Parasphseroma, Stebbing, Crust. 52 
