INDEX 



319 



forebrain, 174, 228, 240, 292 

 fore-gut, 101, 118 ; see also develop- 

 ment 



fornix, 293 



fourth ventricle, 175, 216, 296 

 Fowl, development, 234 

 fresh- water mussel, 61 



polyp, 30 



frontal bone, 261 

 fronto-nasal process, 156, 279 

 fronto-parietal bone, 201 



galea, 115 



Gallus, development, 234 



gamete, 15, 25, 27 



gametocyte, 25 



ganglia, see nervous system 



gaper, 61 



Gasteropoda, 61 



gastric glands, 165, 276 



gastric mill, 101 



gastrula, 31, 58, 73, 86, 143, 144, 



191, 226, 238, 250 

 genital ridge, 189, 223, 306 

 germ cells, 148, 188, 310, 311 

 giU cover, 93, 231 



filament, 65 



lamella, 65 



gills, 65, 98, 136, 150, 156, 166, 230, 



244, 251 

 gizzard, 79, 118 

 gland, see digestion 

 gland cell, 33, 35 

 Glochidium larva, 71 

 Glossina, 29, 113, 127 

 glossopharyngeal nerve, 178, 218, 297 

 glottis, 207 

 gnat, 125 



gonad, 68, 133, 142, 148, 214, 223 

 gonocoel, 59, 122, 128 

 gonoduct, 75, 90, 129 

 gonophore, 42 

 gonopophyses, 122 

 gonotheca, 42 



great splanchnic nerve, 300 

 Gregarines, 25 

 grub, 113 

 gullet, see oesophagus 



Haemamoeba, 25 



haemocoel, 105, 122 



haemocyanin, 68, 103 



Haemoflagellata, 28 



haemoglobin, 82, 166, 168, 201, 280 



haemorrhoidal vein, 172 



hair, 272 



haploid chromosomes, 312 



Harderian gland, 220 

 Hatschek's pit, 135, 138, 149 

 head, 52, 115, 196, 256 

 head cavity, 149, 184, 252 



fold, 240, 250 

 heart, Anodonta, 68 



Nephrops, 104 



Blatta, 120 



Amphioxus, 139 



Kaia, 168, 169 



Rana, 209,211, 232 



chick, 246 



Lepus, 283, 285 

 Hensen's knot, 238 

 hepatic caecum, 137 

 hepatic-portal vein, 139, 172, 213, 



289 



hepatic sinus, 172 

 hexacanth, 56 

 Hexapoda, 113 



hindbrain, 174, 175, 228, 240, 292 

 hind-gut, 103, 118, 119; see also 



development 

 hippocampus, 293 

 Hirudinea, 76 



homoiothermic animals, 283 

 hormones, 131 

 humerus, 204, 268 

 Hydra, 30 

 hydrocaulus, 40 

 Hydrocoela, 130 

 hydrorhiza, 40 

 hydrotheca, 40 

 Hydrozoa, 30 

 Hymenoptera, 124 

 hyoid arch, 161, 199, 202, 244, 251, 



261, 266 



hyomandibular, 161 

 hypoglossal nerve, 219, 298 

 hypopharyngeal groove, 136 

 hypopharynx, 116, 118, 126 

 hypophysis, 173, 244, 251 

 hypostome, 32 



ileum, 277 



iliac artery, 172, 211, 288 



process, 163 



vein, 172, 289 

 ilium, 204, 269 

 imago, 114 

 incus, 261, 264 

 infraorbital gland, 274 

 infundibulum, 140, 173, 174, 216, 295 

 Infusoria, 9 



inhalent opening, 64 

 ingestion, 5 

 innominate bone, 269 

 Insecta, 113 



