INDEX TO NEW GENERA AND SUBGENERA. 
O 
Cyanostolus, Ganglbauer, Ins. 109 
Cyclostomiceras, Hyatt, Moll. 59 
Cylastrum, Rust, Prot. 18 
Cylicoceras, Buckman, Moll. 56 
Cylidroctenus, Kraatz, Ins. 129 
Cymatocarpus, Looss, Verm. 40 
Cypliolioceras, Buckman, Moll. 56 
Cyphosenns, Schultze, Ins. 143 
Cyrtactinoceras, Hyatt, Moll. 59 
Cyrtinopsis, Scupin, Brach. 7 
Cyrtorizoceras, Hyatt, Moll. 59 
Cyrtosiceras, Hyatt, Moll. 56 
Cystococcus, Fuller, Ins. 256 
Dactyleurys, Tschitscherine, Ins 98 
Dactylocystis, Jaekel, Ech. 95 
Dactylostomias, Garman, Pisces 35 
Damarus, Peringuey, Ins. 131 
Damelia, Distant, Ins. 243 
Damesiella, Tornquist, Moll. 80 
Dammeria, Hartert, Aves 69 
Dasyceras, Hyatt, Moll. 56 
Dasymutilla, Ashmead, Ins. 172 
Deanolis, Snellen, Ins. 222 
Decaporodesmus, Kenyon, Myr. 12 
Deinomimesa, Perkins, Ins. 172 
Deinophlceus, Sharp, Ins. 112 
Deleatidium, Eaton, Ins. 263 
Delibius, Fauvel, Ins. 103 
Delius, Fauvel, Ins. 103 
Delphastus, Casey, Ins. 163 
Demera, Fauvel, Ins. 103 
Dentimargo, Cossmann, Moll. 72 
Derema, Fauvel, Ins. 103 
Dermaster, Loriol, Ech. 69 
Deubelia, Bernhauer, Ins. 103 
Diadasiella, Ashmead, Ins. 167 
Diadochoceras, Hyatt, Moll. 56 
Diancistrus, Ogilby, Pisces 29 
Diaphorillas, Oberholser, Aves 67 
Diaphoropterus, Oberholser, Aves 
68 
Diaplococeras, Hyatt, Moll. 56 
Diatropornis, Oberholser, Aves 41 
Diatropura, Oberholser, Aves 56 
Dibothriocephalus, Luke, Verm. 36 
Dibranchichthys, Garman, Pisces 
22 
Dibranchopsis, Garman, Pisces 22 
Dichroma, Riibsaamen, Ins. 232 
Diccelotliorax, Ashmead, Ins. 183 
Dicranodesma, Doll, Moll. 83 
Dicranodonta, Woods, Moll. 86 
Dicyemodeca, Wheeler, Verm. 49 
Didaphne, Berg, Ins. 202 
Didion, Casey, Ins. 163 
Diegoa, Fairmaire, Ins. 136 
Dieunomia, Cockerell, Ins. 167 
Diglotta, Champion, Ins. 103 
Dimerus, Fiori, Ins. 106 
Dinocephalus, Peringuey, Ins. 152 
Dinocystis, Jaekel, Ech. 95 
Dinonota, Kraatz, Ins. 122 
Diodoceras, Hyatt, Moll. 59 
Dioxeuta, Sharp, Ins. 103 
Diphyllogaster, Brian, Crust. 30 
Diplacomoceras, Hyatt, Moll. 57 
Diplocotidus, Peringuey, Ins. 131 
Diplodontina, Stempel, Moll. 84 
Diplomoceras, Hyatt, Moll. 57 
Dipoloceras, Hyatt, Moll. 57 
Dirrymoceras, Hyatt, Moll. 57 
Discophyllites, Hyatt, Moll. 57 
Discorliynchus, Labbe, Prot. 24 
Dissotoxus, Fairmaire, Ins. 117 
Distagma, Staudinger, Ins. 211 
Distillus, Simon, Araclin. 18 
Distoloceras, Hyatt, Moll. 57 
Ditylonia, Seidlitz, Ins. 139 
Docemasia, Jacoby, Ins. 157 
Dolichocrabro, Ashmead, Ins. 172 
Dolichomutilla, Ashmead, Ins. 172 
Dolichopistlien, Kolbe, Ins. 143 
Dolichopyga, Seidlitz, Ins. 139 
Dolichosomum, Looss, Verm. 40 
Dolopichtliys, Garman, Pisces 22 
Doritites, Rebel, Ins. 95 
Dorylobius, Raffray, Ins. 103 
Draconiscus, Philippi, Kept. 22 
Drepanaster, Whidborne, Ech. 76 
Drepliopylla, Fiori, Ins. 103 
Drupadia, Distant, Ins. 243 
Druppalonche, Hinde, Prot. 18 
Dubioteutliis, Joubin, Moll. 55 
Dyscolorliinus, Saussure, Ins. 274 
Eccopa, Karsch, Ins. 202 
Eccoptopteryx, Berg, Ins. 202 
Echinellopsis, Rovereto, Moll. 75 
Echinomera, Labbe, Prot. 24 
Ecitopria, Wasmann, Ins. 184 
Ecrizothis, Blackburn, Ins. 143 
Ectatocyba, Faust, Ins. 143 
Ectopsocus, McLachlan, Ins. 262 
Ectreposebastes, Garman, Pisces 19 
Edithia, Reitter, Ins. 152 
Edwallia, Hempel, Ins. 256 
Egidyella, Reitter, Ins. 137 
Eichwaldia, Smitt, Pisces 24 
Elassophilus, Faust, Ins. 143 
Eleutherocrania, Huene, Brach. 7 
Ellipsostigma, Hinde, Prot. 19 
Elosita, Snellen, Ins. 223 
Emathis, Simon, Araclm. 18 
