INDEX 



Numbers in Italics give Systematic Position, 

 refer to Figures. 



Numbers in Black Type 



ABDOMINALIA, 292 



Abyla, 70 



Acantharia, 6 



Acanthia, 440 



Acanthin, 16 



Acanthocephala, 180 



Acanthodrilus, 181 



Acanthometra, 6 



Acanthocystis, 6 



Acarina, 510 



Accessory intestine (Vermes), 206 



Acheta campestris, sexual organs, 486 



Acliromatin, 35 



Achtheres, 291 



Acidaspis, 415 



Acineta, 11 



Accela, 134 



Acone eyes (Insecta), 470 



Acontia, 83 



Acotylea, 133 



Acraspeda, 71 



Acridiidce, 439 



Acridium tartaricum, 474 



Acronyctidce, 44% 



Actinaria, 71 



Actinia, 71 



Actinocephahis, 9 



Actinophrys, 6 



Actinophrys sol, 6 



Actinosplicerium, 6 



Actinotrocha, 272 



Aculeata, 44% 



Adamsia, 71 



Adradii, 74 



dSga, 295 



JSgineta, 69 



jEginopsis, 69 



JElosoma, 181 



Forskalea, 68 ; auditory vesicles, 



95 



JEschna, 439 ; sexual organs, 485 

 Agalma, 70 

 Agalmopsis, 113 



Agelena, 510 



,, labyrinthica, embryo, 539, 

 Aglantha digitalis, 69 

 Agnostus, 415 

 Agrion, 439 

 Agrotidce, 442 

 Alary muscles, 475 

 Alcippidce, 292 



Alcyonaria, 70; gemmation, 107 

 Alcyonella, 184 

 Alcyonium, 70 

 Alcyonidium, 184 

 Alcyopidce, 182 

 Aletes, 510 

 Aletia, 463 



Alima type of larva, 393 

 Allantonema mirabile, 200 

 Alloiocoela, 134 

 Allolobophora, 181 

 Atturus, 181 

 Alma nilotica, 246 

 Alpheus, 298 

 Alternation of generations (Protozoa), 21 ; 



(Cnidaria), 115 ; (Vermes), 267 ; (An- 



tennata), 502 

 Alydus, 440 

 Amalthceidce, 90 

 Ametabole, 491 

 Ammothea, 4% 4 

 Amnion, 434, 493 

 Amoeba, 4 



,, polypodia, 3, 12 

 Amcebina, 4 

 Amphiasters, 35 

 Amphifflene, 234 

 Amphilina, 134 

 Amphinomidce, 182 



Amphipoda, 296 ; circulatory system, 362 

 Amphiporus, 178 



Moseleyi, 220 



Amphipneustic tracheal system, 482 

 Amphistoma, 134 ' 

 Amphtthoe penicillata, thoracic limbs, 318 



