INDEX 



587 



1., /, /,/w/v,/ (contii 



comiiouinl n.'Hiin- n| pliarvngeal con- 



strictor niiis.-l,-. 'J17 

 egg, -" 



external form, 434 

 external gills. 154 



inilation, 34, 35, 36 

 heart, 375, 379 

 Inn/, Iti'J, 170, 171 

 modelling of intestine. 184, 185 

 motor nerve-trunks, 10(5,108, 109, 110 

 my'tome, 201, 202, 203 

 neural rudiment, 496 

 olfactory nerve, 113 

 optic rudiment, 136 

 origin of niesoderm, 58 

 otocyst, 131 

 pancreas, 190 

 1'inkus's organ, 133 

 pnmephros, 231, 232 ; 233 

 respiratory limbs, 451 

 rods, 137 

 selerotome, 285 



-illation, 26 



skull and niyotomes, 213 

 teeth, 324, 331 

 thynms, 177 

 thyroid, 175 

 venous system, 407, 409 



bone and scales, 334 



cement-organs, 181 



external form, 431 



muscle-buds, 206 



ovary, 277 



segmentation, 24, 25 

 Limbs, 441 



evolutionary origin, 443 



skeleton, 349 



varying situation, 448 

 Liver. 186 

 Lung, 161 



LriiL r -lish (fjepidosiren, Protopterus, Cera- 

 f <>i tits) 



cement-organs, 78, 79 



cloacal caecum, 242 



egg, 25 



eye muscles, 211 



hypobranchial muscles, 212, 213 



opisthonephros, 260 



otocyst, 131 

 practical hints, 565 

 segmentation, 25, 26 

 vasa efferentia, 279 

 Lymphatic system, 426 



M.-KToinere, 6 



Mulpighian body, 227, 246, 260 



JNIan.libular arch, 319 



ridge, 145 

 Maxillary process, 127 



ridge, 14.5 



Medullary folds, groove, plate, 83 

 sheath, 85 



Meridional, f 



Meroblastic, 7 



Merocyte, 14, 17, 18 



Mesencephalon, 87 



MUM-II. thyme, 66, 286, 506 



Mesenteric arteries, 407 



Mesenteron, 144 



Mesentery, 199 



Mesoderm, axial and peripheral, 63 



general remarks on, 54, 506 



lateral, 59 



origin of, 65 



segments, 59 



of head, 208 



Mesonephros, 221, 253, 254 

 Mesothelium, 67 

 Metanephros, 221, 256 

 Methods, embryological, 573 

 Micromere, 6 

 Micropyle, 457 

 Mouth, 498 



Miillerian duct (oviduct), 242 

 Muscle-buds, 205, 206, 207, 208 

 Muscles, 205 



of median tins, 205, 206 



of paired fins, 206, 207 

 Myoblast, 201, 202, 203, 204 

 Myocoele, 202 



Myoepithelial cells, 202, 204 

 Myosepta, 202 

 Myotomes, 198, 201, 203 

 Myxinoids 



pericardiac cavity, 200 



segmentation, 18 



spawning locality, 559 



Nares, 125 



external, temporary obliteration of, 129 



internal, Anmiota, 151 

 Nasal process, median, 127 

 Necturus 



rib, 304 



Neonychium, 74, 76 

 Neopallium, 91 

 Nephridia, 217 

 Nephrocoele, 198, 226 

 Nephrostome, 222 

 Nephrotome, 198 

 Nephrotomes, secondai'y, 247 

 Nerve development, general discussion, 113, 

 345 



optic, 140 



pineal, 97 

 Nerves as landmarks, 345 



cranial, 122 



sensory, 112 

 Nerve-trunks, motor, 102, 104, 105, 106. 



108, 109, 110, 111, 204 

 Nervous system, 82 



evolutionary origin, 118 

 Neural arches, 292, 294 



crest, 121 



spine, 296 

 tube, 83 



