658 



INDEX OF SUBJECTS. 



gonotheca, 86 

 green-gland, 383 

 gymnoblastic, 87 



Hsemocyanin, 278, 377, 429 



hemoglobin, 877, 538 



hsemolymph, 206 



balteres, 520 



bead-kidney, 214, 222 



beart Ampbiueura, 289; Arachnida, 

 437; Cepbalopoda, 346; Crustacea, 

 376; Gasteropoda, 298; Pelecypoda, 

 332 ; Pycnogouida, 465; Tracheata, 

 470 ; Urocborda, 621 ; Xipbosura, 

 429 



Hectocotylus, 356 



heuiimetabolic insects, 500 



hermaphroditism, 44 



beterogouy, 60, 148, 498 



histolysis, 456 



bolonietabolic insects, 500 



hook-gland, 462 



hydranth, 79 



hydrocaulus, 79 



hydroccel, 535 



hydrorhiza, 79 



bydrotheca, 79 



hypermetamorphosis, 513 



bypodermis, 174 



hypophysis cerebri, 615, 623 



hypostorae, 79 



Imago, 500 

 immigration, 55 

 individuality, 41 

 ink-bag, 349 



interteutacular organ, 260 

 invagiuation, 54 



Karyokinesis, 9 

 Keber's organ, 337 



Lacunar system, 538 



languets, 622 



lateral -line organs, 210, 222 



Laurer's canal, 146 



lemnisci, 181 



Leucon, 71 



liniu, 6 

 liver, 614 



lopbophore, 247, 254 

 lung- books, 436, 457 



Madreporiform tubercle, 536 



madreporite, 536 



malpighian tubules Amphipoda, 

 417; Arachnida, 437 ; Tracheata, 

 474 



mantle, 268, 276, 621 



manubrium, 81 



mastax, 191 



Medusa, 77, 80 ; Oaspedote, 81 ; 

 Gyniuopbtbalmatous, 82 ; Ocel- 

 late, 82, 89; Vesiculate, 82 



megaloesthetes, 292 



Megalopu, 422 



mesendoderm, 68/132 



meseuterial filaments, 99, 105 



mesentery, 57, 104, 179, 187, 206, 270 



mesoblasts, 57, 214, 225, 237 



mesoderm, 56 



mesoglrea, 68 



mesopodiurn, 296 



mesotborax, 488 



metagenesis, 60 



metamere, 41 



metamerism, 43 



metamorphosis of insects, 499 



Metanauplius, 418 



metapodium, 296 



metathorax, 488 



Metazoea, 421 



micrtestheles, 292 



micronucleus, 35, 37 



microsomes, 4 



mitosis, 9 



Morren's gland, 220 



Milller's larva, 141 



muscular system Acanthocephala, 

 180; Amphineura, 286, 289; Antho- 

 zoa, 166; Brachiopoda, 270; Cepha- 

 lochorda, 610 ; Cephalopoda, 348; 

 Cestoda, 154 ; Chsetoguatha, 187 ; 

 Chaetopoda, 205, 219 ; Crustacea, 

 375; DinopMlus, 198 ; Ecbinodera, 

 185; Echinoderma, 535; Gasteropo- 



