6io 



INDEX 



Alcippe, 343 



Alcyonaria, 157 



Alcyotiidiimi, 537 



Alcyonimn, 158; 158, 160, 164, 165, 



165 

 A. digitatum, 157 

 Alepas, 343 

 Algae, 42 



Alimentary canal, 121; of Antedon, 

 580 ; of Arachnida, 445 ; of Ara- 

 neida, 458; of Arenicola, 240; of 

 Argas, 462 ; of Arthropoda, 278 ; of 

 Asteroidea, 560; of Balanoglossus, 

 587; of Brachiopoda, 540; of 

 Carcinus, 368; of Chaetognatha, 

 542; of Chirocephalus, 320; of 

 Ciotia, 592; of Crustacea, 307; of 

 Cyclops, 333; of Daphnia, 328; of 

 Echinodermata, 550; of Echinus, 

 566; of Gammariis, 359; of Helix, 

 484; of Hirudinea, 263; of Holo- 

 thuroidea, 573; of Insecta, 387; 

 of Iidus, 381 ; of Lamellibranchiata, 

 503 ; of Lepas, 340; of Ligia, 355 ; 

 of Limulus, 457 ; of Lithohius, 378 ; 

 of Mollusca, 477 ; oiNebalia, 350 ; 

 of Nematoda, 218; of Nemertea, 

 207 ; of Oligochaeta, 254 ; of Ophi- 

 uroidea, 564; of Pantopoda, 467; 

 of Peripatiis, 284; of Phoronis, 

 546; of Polyzoa, 530; of Ptero- 

 branchia, 590; of Rotifera, 212; 

 of Salpida, 604; of Scorpionidea, 

 450; of Sepia, 519; of Stomato- 

 poda, 357; of Stylaria, 259; of 

 Tardigrada, 467; of Testacella, 

 496; of the trochosphere, 250. 

 See also Digestive system 



Allantonema, 226 



Allogromia, 71 ; 63 



A. oviformis, 72 



Alloiocoela, 189 n. 



Allolobophora, 253 



Alternation of generations, see Life 

 cycle 



Alveolar layer, 98 



Alveoli, of digestive gland, 486; of 

 protoplasm, 8 



Amhlyomma, 462 



Ambulacra, 547 



Ambulacral grooves, 547; 558, 579 



Ambulacral ossicles, 558, 562, 567 



Ambulacral surface, see Oral surface 



Ametabola, 399. See also Apterygota 



Amiskwia, 545 



Amitoses of Protozoa, 19 



Ammonoidea, 525, 528 



Amnion, 208 



Amoeba, 64; 8, 14, 16, 24, 33 



A. discoides, 65 



A. dubia, 65 



A.proteus, 64; 15, 18, 20, 32, 35, 65 



Amoebina, 63 



Amoeboid movement, 1 1 



Amoebulae, 33 



Amphineura, 474 



Amphinucleoli, 19 



Amphioxus, 120, 121, 583, 584, 594, 



5955 597- See also Cephalochorda 

 Amphipneustic, 439 

 Amphipoda, 358 

 Amphitrite, 231 

 Amphiura, 564 

 Amphoridea, 582 

 Ampulla of stone canal, 570 

 Ampullae, of Hydrocorallinae, 551; 



tube feet, 551 

 Ampullaria, 490 

 Anal papilla, 578 

 Anal suture, 411 

 Anaphothrips striatus, 424 

 Anaspides, 351 ; 296, 297, 298, 301 

 A. tasmaniae, 352 

 Ancestral group of Protozoa, 39 

 Andrena, 430, 443 

 Animal Kingdom, i ; 39, 54 

 Animal pole, 248 

 Anisogamy, 26; 27, 28, 40, 50-2, 



83-7. See also Gametes 

 Anisoptera, 417 

 Anisospores, 75 

 Ankylosto?na, 222; 221, 224 

 Annelid cross, 250 

 Annelida, 228; i, 2 

 Annuli, of crustacean limbs, 300; 



of leeches, 263 

 Annulus of dinoflagellates, 48 

 Anodon, see Anodonta 

 Anodonta, 499, 500, 501, 504, 505, 



506, 507 

 Anomopoda, 325 

 Anomura, 362 



Anopheles macidipennis, 437 ; 394 > 395 

 Anoplophrya, 100 

 A. prolifera, lOl 

 Anoplura, 424 

 Anostraca, 318; 317 

 Antedon, 578; 581, 582 



