INDEX TO THE GENERA. 



ABR/EUS, 173 

 Acalles, 212 

 Acallistus, 143 

 Acallopais, 214 

 Acanthephyra, 255 

 Acanthidositta, 29 

 Acanthochaera, 37 

 Acanthochites, 86 

 Acanthoclinus, 46 

 Acanthoderus, 234 

 Acanthodoris, 67 

 Acanthomunna, 264 

 Acanthopleura, 86 

 Acantophrys, 248 

 Acartia, 270 

 Accentor, 347 

 Achceta, 346 

 Achorutes, 354 

 Acineta, 327 

 Aclis, 80 

 Acmaea, 85 

 Acontiophorus, 272 

 Acrantus, 219 

 Acosmetus, 170 

 Acrocyrta, 194 

 Actascia, 265 

 Actason, 69 

 Actenonyx, 150 

 Actidium, 168 

 Actinelius, 339 

 Actinia, 314 

 Actinopteryx, 168 

 Actizeta, 185 

 Adelium, 187 

 Adeonellopsis, 298 

 Adolopus, 153 

 Adoxophyes, 116 

 Adula, 94 

 ^Ega, 262 

 .(Egiatilis, 38 

 ^Egoenicthys, 45 

 ^Eolidiella, 68 

 ^Eolis, 67 

 yEgyria, 328 

 ^Eschna, 230 

 ^Eschrodomus, 60 

 /Etea, 294 

 ^Etobatus, 53 

 Agacalles, 212 

 Agalba, 154 

 Agamonema, 304 

 Agandecca, 225 



Aganeuma, 208 

 Agapanthida, 192 

 Agastegnus, 216 

 Agathinus, 210 

 Aglaia, 268 

 Aglaja, 69 

 Aglaophenia, 321 

 Aglophus, 156 

 Agonochila, 150 

 Agonostomus, 46 

 Agrrecia, 231 

 Agnlochilus, 217 

 Agromyza, 129 

 Agrostis, 106 

 Aka, 225 

 Akera, 69 

 Aldonus, 2ii 

 Alema, 198 

 Aleochara, 181 

 Alepas, 274 

 Alepisaurus, 50 

 Aleurodes, 225 

 Allaorus, 218 

 Allasterna, 199 

 Allocatops, 175 

 Allocharis, 198 

 Allocinopus, 342 

 Allodiscus, 63 

 Alloparnus, 153, 162 

 Allopora, 318 

 Alloprocas, 207 

 Alloptt-rus, 188 

 Alloptes, 245 

 Allotherma, 102 

 Alogus, 147 

 Alona, 266 

 Alope, 254 

 Alopias, 54 

 Alpheus, 254 

 Alysia, ico 

 Amalia, 348 

 Amarosoma, 188 

 Amarotypus, 141 

 Amathia, 294 

 Amarygmus, 188 

 Amaryllis, 258 

 Amaura, 80 

 Amaurobius, 238 

 Ambeodontus, 192 

 Amblyophis, 332 

 Amblypneustes, 288 

 Amblypone, 97 



Amblyrhynchotus, 52 

 Amblytelus, 101 

 Ameletus, 231 

 Ammodiscus, 335 

 Ammothea, 247 

 Ammotretis, 48 

 Amoeba, 340 

 Ampelisca, 260 

 Amphibola, 66 

 Amphileptus, 330 

 Amphilochus, 258 

 Amphinecta, 238 

 Amphipeplea, 66 

 Amphiplatys, 157 

 Amphiporus, 312 

 Amphitrite, 280 

 Amphiura, 290 

 Amphixystis, 124 

 Amphoroidea, 263 

 Amphitretus, 57 

 Amphoterocotyle, 311 

 Amplectopus, 157 

 Amylopterus, 210 

 Amymone, 271 

 Anabarhynchus, 131 

 Anacharis, 102 

 Anagotus, 203, 343 

 Anaitis, 89 

 Anarhynchus, 32 

 Anas, 36 



Anchistrocephalus, 310 

 Anchomenus, 143, 342 

 Anchylochilus, 341 

 Ancilla, 74 

 Ancistropterus, 210 

 Anclylomera, 257 

 Andaniotes, 258 

 Aneunia, 208 

 Aneura, 134 

 Aneurus, 222 

 Anguilla, 52 

 Aniculus, 252 

 Anillus, 150 

 Anisolabis, 234 

 Anisomeristes, 174 

 Anisonema, 332 

 Anisoplaca, 118 

 Anisops, 223 

 Anobium, 161 

 Anomaloniyi.i, 134 

 Anornia, 95 

 Anoniyx, 258 



