478 



INDEX. 



Crop, 339 



Crura cerebri, 103, 104 



Crustacea, 322, 441 



Crystalline Cone, 318 



Ctenidia, 32G 



Cuticle, 400, 417, 428, 410 



Cyclostomata, 448 



Cysticercus, 3/2, 438 



TvACTYLOPODITE, 304 



V Darwin, 284 



Decapoda, 322, 441 



Deciduate, 206 



Decussation, 103 



Degeneration, 335 



Demibranchs, 1/5 



Dendrons, 89 



Dental formula, 81, 132 



Dentine, 57, 170 



Dentition (see Teeth), 14 



Dermal denticles, 170 



Dennis, 50, 225 



Determinants, 295 



Development, 11 ' 



Diaphragm. 6, 36, 133 . 



Diaster, 44 



Diastole, 29, 312 



Diatoms, 39 



Differentiation, 44, 45, 280, 382 



Digenea, 437 



Digestion, 12, 340, 381 



Dipnoi, 449 



Diptera, 445 



Direction, Sense of, 115 



Dissection, 52 



Distomidae, 355, 357 



Distribution of animals, 11, 42, 331 



,, ,, nerves, 105 



Dominants, 218 

 Dorsal pores, 338 

 Drepanidium ranarum, 427 

 Duct, 60 



of Botallus, 142 

 " Ductless glands," 32, 154, 190 

 Ductus arteriosus, 28, 2/2 



,, venosus, 272 

 Duodenum, 16, 140, 174 

 Dyads, 215 



E 



All (see Auditory organ). 

 , External, 114, 130 



Earthworm, 346 

 Ecdysis, 309 

 Echinococcus, 374 

 Echiuroidea, 439 

 Ectoderm, 377 

 Ectoplasm, 38 

 Ectoplastic, 46 

 Efferent nerve fibres, 90 

 Egg-case, 188 

 Elasmobranchii, 191, 443 

 Elastic ligament, 325 

 Embryo, 213, 257 

 Emulsification, 17 

 Enamel, 56, 170 



,, -organs, 267 

 Encystment, 41 

 Endoderm, 377 



, , , lamella, 392 

 Endolymph-duct, 114, 154, 187, 275 

 Endomysium, 84 

 Endophragmal system, 308 

 Endoplasm, 38 

 Endoplastic, 45, 46 

 Eudopodite, 304 

 Eudoskeleton, 382 

 Endostyle, 198 

 Endothelium, 21, 48 

 Energy, 8 

 Euteron, 381, 386 

 Entomostraca, 441 

 Epiblast, 223, 231, 249, 345 

 Epibranchial, 181 

 Epidermis, 50, 134, 157, 217 

 Epididymis, 124, 189, 280 

 Epiglottis, 15 

 Epi-hyal, 82 

 Epimeron, 303 

 Epiphyses, 55, 67, 133, 273 

 Epipodite, 304 

 Episternum, 148 

 Epithelium, 47, 48, 49, 59, 111, 225, 



382 



Epitokous, 351 



Equilibration, 115, 119, 152, 186 

 Ethmoid, 80 

 Euglena, 405 

 Eustachian tube, 115 

 Eutheria, 454 

 Evolution, 296 

 Excretions, 8, 17, 46 

 Excretory organs (see Kidney. Ne- 



phridium, Renal). 

 Exhalent, 324 



