INDEX TO NEW GENEKA AND SUBGENERA. 
17 
Pseudostromborrliinus, Heller, Ins. 
180 
Pseudotectus, Perner, Moll. 85 
Pseudotragus, Schlosser, Mamm. 43 
Pseudotruncatella, Andreae, Moll. 
81 
Pseudotylostoma, Iliering, Moll. 82 
Pseudotypotherium, Ameghino, 
Mamm. 49 
Pseustoijhylla, Peringuey, Ins. 154 
Psilochalcis, Kiefer, Ins. 231 
Psilocochlis, Ball, Moll. 77 
Psilotrichus, Ltcze, Ins. 138 
Psodopsis, Warren, Ins. 283 
Psoralis, Mabille, Ins. 252 
Psorosina, Dyar, Ins. 289 
Psychophagus, Mayr, Ins. 231 
Pteroceropsis, Sivinhoe, Ins. 263 
Pterygascidia, Sluiter, Tun. 7 
Ptilogonia, Bischof, Ins. 309 
Ptilophyllodromia, Bezzi, Ins. 306 
Ptomatis, Clarke, Moll. 86 
Ptychocladia, Ulrich and Bassler, 
Bry. 17 
Ptychocynodon, Seeley, Rept. 33 
Ptychonema, Perner, Moll. 82 
Ptychorhytida, Zo6e^?, Moll. 62 
Purcellia, Hansen and ISorensen, 
Arachn. 37 
Pycnomma, Rutter, Pisces 32 
Pycnomutilla, Ashniead, Ins. 213 
Pycnotroclius, Perner, Moll. 85 
Pygyeomorpha, Bethune- Baker, Ins. 
263 
Pyralopliodon, ximegldno, Mamm. 50 
Pyrrhochalcia, Mabille, Ins. 252 
Qaadrimetron, Popofsky, Prot. 52 
Quadrinci'vus, Cossmann, Moll. 78 
Quadristaiirus, Popofsky, Prot. 52 
Qiiercetaniis, Distant, Ins. 323 
Radamellus, Llafray, Ins. 143 
Ragnar, Kirkaldy, Ins. 324 
Ramella, Schulze, Spong. 17 
Raphidocystis, Penard, Prot. 50 
Rathy motherium, A meghino. Mam m. 
50 
Reedia, Ashmead, Ins. 213 
Regania, Jordan and Starks, Pisces 
40 
Rekoa, Kaye, Ins. 250 
Renicola, Cohn, Verm. 50 
Renifer, Pratt, Verm. 50 
Reiiterista, Kirkaldy, Ins. 324 
Rhabdochaeta, de Meijere, Ins. 311 
Rliabdoploca, Topsent, Spong. 25 
Rhabdospira, Peraer, Moll. 80 
Rhacocassis, Spaeth, Ins. 198 
Rliamphixius, Fowler, Ins. 334 
Rlieopresbe, Jordan and Starks, 
Pisces 29 
Rhinura, War7'en, Ins, 284 
Rhodanomys, Deperet and Douxami, 
Mamm. 41 
Rhodomena, Wan^en, Ins. 284 
Rhombotrypa, Ulriek and Bassler, 
Bry. 13 
Rhopalithes, Grahau, Moll. 77 
Rhynchomesostoma, Luther, Verm. 
44 
Rhynchophalera, Aurivillius, Ins. 
263 
Rhypastiis, Fairmaire, Ins. 180 
Ricuzeiiiiis, Jordan and Starks, 
Pisces 29 
Rihana, Distant, Ins. 331 
Robertsonella, Titus, Ins. 206 
Ropaliceschatiis, Renter, Ins. 328 
Rosetta, Popofsky, Prot. 52 
Rotellomphalus, Perner, Moll. 85 
Rozinante, Stehbing, Crust. 45 
Rulandus, Distant, Ins. 323 
Ruscula, Casey, Moll. 75 
Sabellicus, Distant, Ins. 328 
Sabljaria, Briisina, Moll. 66 
Saccoina, Dall and Bartsch, Moll. 
84 
Saccoploca, Warren, Ins. 284 
Sadaka, Distant, Ins. 331 
Salagosa, Raff ray, Ins. 143 
Saprus, Blaekburn, Ins. 152 
Sarcoborus, Oudemans, Arachn. 46 
Sarega, Mabille, Ins. 252 
Sargocentron, Fowler, Pisces 39 
Sarisophora, Meyrick, Ins. 296 
Sarostegia, Topsent, Spong. 17 
Sarotorna, Meyrick, Ins. 296 
Saycia, Sars, Crust. 49 
Sayiella, Ashmead, Ins. 231 
Scapanodon, Broom, Rept. 32 
Scaptocosa, Banks, Arachn. 35 
Scaridea, Jenkins, Pisces 34 
Scelidotheriops, Ameghino, Mamm. 
51 
Scenidiopis, Turner, Ins. 290 
Sclerothamnopsis, Wilson, Spong. 16 
Schizanoplius, Cameron, Ins. 213 
Schizoblattina, Sellards, Ins. 126 
Schizochirus, Waite, Pisces 28 
Schizocosa, Chamberlin, Arachn. 35 
Schlettereriella, Szepligeti, Ins. 225 
