700 



INDEX 



Excretory organs (cont.) 



tea, 235; of Onychophora, 315, 

 320; of Platyhelminthes, 202; of 

 Polychaeta, 275; of Rotifera, 241. 

 See also Coelomoducts, Coxal 

 glands, Glomerulus, Kidneys, 

 Malpighian tubules, Nephridia 



Exhalant canals of Porifera, 120 



Exhalant passage of Carcinus, 409 



Exites, 337 



Exocoeles, 187 



Exocyclica, 647 



Exogamous syngamy, 31 



Exopodite of Crustacea, 335, 336, 

 337; of Trilobita, 324; of Xipho- 

 sura, 528. See also Limbs 



Exopterygota, 466; 456 



Exopterygote development of wings, 



459 

 External digestion, by Araneida, 530; 

 by Insecta, 436; by Oligochacta, 

 287; by Rhizostomeae, 179; by 

 Turbellaria, 208 

 External medium, see Medium 

 Extracellular digestion, 130; 147 

 Extrathecal zone, 191 

 Exumbrellar surface, 173, 179 

 Eyes, Compound, 310, 313; Crus- 

 tacean median, 340, 342 ; of Arach- 

 nida*, 310, 521, 529, 532, 533; of 

 Arthropoda, 310, 312; of Ascidian 

 tadpole, 676; of Chae*ognatha, 

 618 ; of Chaetopoda, 263, 265, 268, 

 280, 291 ; of Crustacea*, 310, 313, 

 340, 355, 356, 364, 372, 376, 380, 

 387, 395; of Hirudinea, 300; of 

 Hydrozoa, 160, 161; of Insecta, 

 310, 426, 452; of Mollusca*, 549, 

 555, 570, 584, 598, 599, 603; of 

 Myriapoda*, 417, 422; of Nemer- 

 tea, 235; of Onychophora, 310, 

 317; of Polychaeta, 263, 265; of 

 Trilobita, 323 ; of Turbellaria, 200, 

 200. See also Eye -spots 

 Eye-spots, of Asteroidea, 630; of 



Protozoa, 17 

 Eyestalk, 410 



Facial suture, 323 



Falciform young, 38; 95 



Fasciola, 220; 218; hepatica, 221, 223 



Fat body, 437, 439 



Favia, 192 



Feeding, of Actinozoa*, 183, 193; 



of Arachnoidea, 517, 522, 529, 

 530, 534, 539; of Asteroidea, 636; 

 of Balanoglossus, 666 ; of Brachio- 

 poda, 615, 616; of Branchiopoda*, 

 354, 356, 358, 359, 362, 364, 367; 

 of Carcinus, 410; of Cephalopoda, 

 594; of Chaetognatha, 619; of 

 Chaetopterus, 271 ; of Chordata, 

 660 ; of Ciliata, 104 ; of Ctona, 674 ; 

 of Copepoda, 373 ; of Crinoidea 

 (Antedon), 656; of Crustacea, 326- 

 7, 331; of Cyprts, 369; of Dioto- 

 cardia*, 565 ; of Echinoidea*, 646, 

 647, 648; of Errant Polychaeta*, 

 265 ; of Filter-feeding Malacos- 

 traca*, 388, 391, 393, 403; of 

 Gastrotricha, 243 ; of Holothu- 

 roidea*, 650 ; of Holozoic Mastigo- 

 phora*, 46, 49, 52, 54, 63, 64, 65, 

 68 ; of Hydatina, 240 ; of Hydro- 

 corallinae, 165; of Lamellibran- 

 chiata*, 574. 576, 577, 582, 587, 

 587; of Lepas, 379; of Monoto- 

 cardia*, 565; of Nematoda, 248; 

 of Nemertea, 233 ; of Oikopleura, 

 680 ; of Ophiuroidea, 639 ; of Opis- 

 thobranchiata*, 567, 56?^; of Phy- 

 salia, 166, 168; of Polyzoa, 607 ; of 

 Protozoa, 19; of Pulmonata*, 570; 

 of Sarcodtna*, 70, 77, 83, 86; of 

 Streptoneura, 564, 565, 566, 567; 

 of Suctoria, 115 ; of Temnocephala, 

 216; of Trilobita, 324; of Tubi- 

 colous Polychaeta, 268, 270; of 

 Turbellaria, 206; of Veliger, 586; 

 of Zoantharia, 193 



Feet, of Histriobdella, 296 ; of Ony- 

 chophora, 319 



Female gametes, 31 ; of Metazoa, see 

 Eggs; of Porifera, 118; of Proto- 

 zoa, 31, 33, 85, 89-96 (passim) 



Femur, 428 



Figites, 459 ; antomyiarum, 458 



Filaria, 253 ; bancrofti, 255 ; 252, 509; 

 loa, 255, 511 ; medinensis, 255 



Filibranchiata, 579; 574, 583 



Filograna, 264 



Filopodia, 14 



Finger-and-toe disease, 86 



Fission, of Metazoa, see Budding, 

 Strobilation ; of Protozoa, see 

 Fission of Protozoa 



Fission of Protozoa*, 28 ; Binary, 28, 

 29, 36, 45, 52, 54, 70, 72, 74, 80, 83, 



