INDEX TO NEW GENERA AND SUBGENERA. 
11 
Osakia, Ragonot , Ins. 248 
Ostenia, Hutton, Ins. 266 
Ostracolethe, Simroth, Moll. 73 
Othnielmarshia, Ameghino, Mamin. 
26 
Ototylomys, Merriam, Mamm. 31 
Ovaticella, Maplestone , Bry. 9 
Oxybia, Hampson, Ins. 248 
Oxydisia, Hampson , Ins. 248 
Oxygyne, Foret, Ins. 184 
Oxypodinus, Bernhauer, Ins. 124 
Oxypolia, Punnett, Vermes 42 
Ozamia, Ragonot, Ins. 248 
Pachistopelma, Pocock, Arach. 35 
Pachycalymma, Schrammen , Spong. 
32 
Pachychilina, Reitter, Ins. 148 
Pachycothon, Bclirammen , Spong. 33 
Pachydictyum, IFetoier, Spong. 37 
Pachydota, Hampson, Ins. 221 
Pachyjoppa, Cameron, Ins. 190 
Pachylebias, Woodward, Pisces 30 
Pachypsolus, Looss, Vermes 52 
Paginula, Ameghino, Mamm. 38 
Pagurapseudes, Whitelegge , Crust. 39 
Pagyra, Schaus, Ins. 230 
Palsemonopsis, Borradaile, Crust. 32 
Palseomastodon, Andrews, Mamm. 
37 
Palseomunida, Lbrenthey, Crust. 32 
Palseomymar, Meunier, Ins. 112 
Palaeosphegina, Meunier, Ins. 113 
Palestrina, Peckham, Arackn. 35 
Paloestrus, Scudder, Ins. 113, 269 
Pamphobeteus, Pocock, Arachn. 36 
Panaietis, Stebbing, Crust. 51 
Panoplites, Theobald, Ins. 260 
Pantostylops, Ameghino, Mamm. 38 
Panysinus, Simon, Arachn. 36 
Paquiericeras, Sayn, Moll. 69 
Parabomis, Kulczynski, Arachn. 36 
Paracodoceras, Cossmann, Moll. 69 
Paracosmesus, Schwarz, Ins. 142 
Paradadyceras, Cossmann, Moll. 69 
Paradiastema, Aurivillius, Ins. 221 
Paradorydium, Kirkaldy, Ins. 289 
Parsegocera, Hampson, Ins. 221 
Paraflata, Melichar, Ins. 287 
Parahelcon, Kokujew, Ins. 193 
Parahyria, Bischof, Ins. 271 
Paralamyctes, Pocock, Myr. 11 
Paraleptusa, Peyerimhoff, Ins. 124 
Paralictus, Robertson, Ins. 176 
Paralucilia, Brauer, Ins. 271 
Paramarpissa, Cambridge, Arachn. 
36 
Paramasaris, Cameron, Ins. 177 
Paramatta, Hampson, Ins. 248 
Parametopa, Chevreux, Crust. 41 
Paramphistomum, Fischoeder, Ver¬ 
mes 52 
Paranemertes, Coe, Vermes 42 
Paranemobius, Alfken, Ins. 307 
Paranerita, Hampson, Ins. 221 
Paranthidium, Cockerell, Ins. 176 
Paranurus, Tschitschenne, Ins. 118 
Parapandalus, Borradaile, Crust. 33 
Paraphidippus, Cambridge, Arachn. 
36 
Paraphiloscia, Stebbing, Crust. 39 
Paraphomia, Hampson, Ins. 248 
Paraphycita, Hampson, Ins. 248 
Paraplastis, Hampson, Ins. 221 
Parapontocaris, Alcock, Crust. 33 
Parapylocheles, Alcock, Crust. 33 
Parascolopsis, Boidenger, Pisces 18 
Parasphenogaster, Heller, Ins. 156 
Parastrapotherium, A meghino, 
Mamm. 37 
Parathiscia, Melichar, Ins. 287 
Paratoxotus, Fairmaire, Ins. 162 
Parazanclodes, Hampson, Ins. 248 
Parentypoma, Strobl, Ins. 190 
Pareuxesta, Coquillett, Ins. 273 
Parevia, Hampson, Ins. 221 
Parhippolyte, Borradaile, Crust. 33 
Parocalea, Bernhauer, Ins. 124 
Paronia, Diamare, Vermes 47 
Parorectis, Spaeth, Ins. 169 
Parothria, Hampson, Ins. 221 
Paroxyptera, Ragonot, Ins. 248 
Paroxyrhopus, Schenkel, Kept. 25 
Parvapenna, Kaye, Ins. 230 
Parvilucina, Dali, Moll. 99 
Patagonia, Hampson , Ins. 248 
Pathocerus, Waterhouse, Ins. 162 
Patritius, Distant, Ins. 281 
Paulogervaisia, Ameghino, Mamm. 
37 
Paulsenius, Germain, Ins. 156 
Pauluma, Schaus, Ins. 221 
Pauronota, Lower, Ins. 254 
Peggia, Kirkaldy, Ins. 287 
Pekinium, Csiki, Ins. 118 
Pelagophilus, Tscliitscherine, Ins. 118 
Pelamphora, Lauterborn, Prot. 36 
Pentaplasta, Kieffer, Ins. 197 
Pentarhoptra, Kieffer, Ins. 197 
Penthornis, Hellmayr, Aves 70 
Pentobesa, Schaus, Ins. 221 
Pentodontoschema, Peringuey, Ins. 
138 
Peridipsaccus, Rovereto, Moll. 86 
Perugia, Eigenmann and Norris, 
Pisces 27 
