INDEX 



Numbers in Italics give Systematic Position, lumbers in Black Type 

 refer to Figures. 



Abdominalia, 292 



Abyla, 70 



Acantharia, 6 



AcanthkCf 44^ 



AcautMn, 16 



Acanthocephala, ISO 



Acanthodrilus, 181 



Acanthometra, 6 



Acanthocystis, 6 



Acarina, 510 



Accessory intestine (Vermes), 206 



Aeheta campestris, sexual organs, 486 



Achromatin, 35 



Achtheres, 291 



Acidaspis, 4i5 



Acineta, 11 



Accela, IS4 



Acone eyes (Insecta), 470 



Acontia, 83 



Acotylea, 133 



Acraspeda, 71 



Acridiidce, 439 



Acridium tartaricumj 474 



Acronyctidce, 44^ 



Actinaria, 71 



Actinia, 71 



Actinocephalus, 9 



Actinophrys, 6 



Actinophrys sol, 6 



Acttnosphcerium, 6 



Actinotrocha, 272 



Aculeata, 44^ 



Adwmsia, 71 



Adradii, 74 



^ga, 295 



ASgineta, 69 



jEginopsis, 69 



jElosoma, 181 



jEquorea Forskalea, 68 ; auditory vesicles, 



95 

 JSschna, 439 ; sexual organs, 485 

 Agalma, 70 

 AgalTTwpsis, 113 



Agelena, 510 



,, labyrinthica, embryo, 639, 



Aglantha digitalis, 69 



Agnostus, 415 



Agrion, 439 



Agrotidce, 44'3 



Alary muscles, 475 



Alcippidie, 292 



Alcyonana, 70; gemmation, 107 



Alcyonella, IS4 



Alcyonium, 70 



Alcyonidium, 18 4 



AloyopidcE, 182 



Aletes, 510 



Aletia, 463 



Alinia type of larva, 393 



Allanionevm mirabile, 200 



Alloiocoela, 134 



Allolohophora, 181 



Alhcrus, 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 

 Ariueba, 4 



,, polypodia, 3, 12 

 Anicebina, 4 

 Amphiasters, 35 

 Amphiglene, 234 

 Amphilina, 134 

 Amphinomidce, 182 



Amphipoda, 296 ; circulatory system, 362 

 Amphiporiis, 178 



, , Moseleyi, 220 



Amj)hipneustic tracheal system, 482 

 Amphistoma, 134 

 Amphitho'e peniciUata, thoracic limbs, 318 



