INDEX. 



385 



Ectosarc of Amoeba, 4; of Paramce- 

 cium, 9 ; of Vorticella, 17. 



Egg of Crab, 204; of Lamellibi-anch, 

 312; of Sea Urchin, 99; of Squid, 

 364. 



Egg, direction cell of, 104, 319; ferti- 

 lization of, 100, 234, 314; germina- 

 tive pole of, 104; germinative 

 vesicle of, 102, 319 ; nutritive 

 pole of, 104; ovarian, 312; prin- 

 cipal axis of, 103; polar globule 

 of, 104, 319; resting stage of, 104, 

 321 ; segmentation of, 102, 318 ; seg- 

 mentation cavity of, 107, 322; seg- 

 mentation nuclei of, 105, 320 ; unfer- 

 tilized, 102, 312 ; yolk of, 103. 



Eml)ryology of Lamellibi-anch, xxviii. ; 

 of Oyster, 312 ; of Sea Urchin, xiv. 



Encystment, 22. 



Endoderm of Hydro Medusa, 44,48; 

 of Hydroid, .32. 33 ; of Lamellibi-anch, 

 322 : of Sea Urchin, 107 ; of Sponge, 

 29. 



Endognathal palp, 176. 



Endoplast of Amoeba, 6 ; of Paramoe- 

 cium, 12 ; of Vorticella, 19. 



Endopodite, 172, 175, 228. 



Endosarc of Amoeba, 4; of Paramce- 

 cium,9; of Vorticella, 16. 



Epidermis of Anodonta,271, 273. 



Epicraniura, 242. 



Epimeron of Crab, 174, 184; of Grass- 

 hopper, 247 ; of Lobster, 187. 



Epiphysis of Sea Urchin, 96. 



Epipodite, 176. 



Episternum of Crab, 173, 174, 184 ; of 

 Grasshopper, 248. 



Epistoma of Crab, 183 ; of Vorticella, 15. 



Exopodite, 173, 175, 228. 



Eye of Crab, 169, 177, 181, 182, 184 ; of 

 Megalops, 217 ; of Zoea, 207 ; of Cy- 

 clops, 225 ; of Grasshopper, 243 ; of 

 Lamellibranch, 329 ; of Leech, 160 ; 

 of Lobster, 185, 189 ; of Squid, 358, 

 367, 368, 370. 



Facial area of Carapace, 170. 



Femur, 241, 



Fission, 20. 



Flabellum, 176, 182, 196. 



Flagellum, 329. 



Flanc, 184, 193. 



Food vacuole of Amoeba, 5 ; of Para- 

 moecium, 11; of Vorticella, 19. 



Foot of Anodonta, 272, 276, 296; of 

 Grasshopper, 242 ; muscles of, 290. 



Frontal lobe of Carapace, 170. 



Furcula, 264. 



Galea, 246. 



Ganglion, abdominal, of Grasshopper, 

 264 ; auditory, of Grasshopper, 266 ; 

 brachial, of Squid, 354; cerebral, 

 of Anotlonta ; cerebi-al, of Crab, 205 ; 

 cerebral, of Earthworm, 146; cere- 

 bral, of Leech, 169; cerebi-al, of 

 Squid, 360; ciliary, of Squid, 359; 

 gastric, of Crab, 205; gastric, of 

 Grasshopper, 263 ; gastric, of Leech, 

 167 ; Lamellibranch, embryo, 329 ; 

 oesophageal, of Grasshopper, 263; 

 optic, of Squid, 360; parieto-splanch- 

 nic, of Anodonta, 288; pedal, of 

 Anodonta, 276 ; pedal, of Squid, .3.57, 

 360 ; retinal, of Squid, 366 ; stellate, 

 of Squid, 3.38; stomato-gastric, of 

 Leech, 169 ; sub-oesophageal, of 

 Grasshopper, 264 ; thoracic, of Ci"ab, 

 206; thoracic, of Grasshopper, 264; 

 visceral, of Squid, 363. 



Gastric area of carapace, 170; coeca, 

 262 ; ganglia of Ci-ab, 205 ; ganglia 

 of Grasshopper, 263; ganglia of 

 Leech, 167 ; mill, 202, 203. 



Gastrula, 167. 



Gastrula mouth, 107. 



Gena, 244. 



Genital chamber, 252. 



Germinative pole of egg, 104 ; germi- 

 native vesicle, 102. 



Gill of Anwlonta, 276, 277, 288, 290,291, 

 292; of Crab, IM, 193, 196; of Crab 

 Megalops, 217 ; of Lamellibranchiate, 

 xxvii.; of Squid, 340, 343, 368, 373; 

 of Unio, 305 ; of tentacles of M}"tilus, 

 300; of Unio, 307. 



