33^ 



INDEX 



Hyostapes, 119 

 Hyostyly, 68, 87, 95 

 Hypapophyses, 43 

 Hypaxial muscles, 3 

 Hypobranchial, 65 

 Hypocentrum, 36, 37 

 Hypochordal bars, 41 

 Hypogastroid, 264 

 Hypoglossal canal, 188 

 Hypohyal, 66, 201 

 Hypoischium, 231, 264 

 Hypomeral bones, 34 

 Hypophysial fenestra, 60 

 Hypoplastron, 15 

 Hypural bones, 225 

 Hyracoidea, appendages, 299 

 skull, 216 



Ichthyophis, chondrocranium, 128 



skull, 130 

 Ichthyopterygia, pectoral girdle, 253 

 Ichthyosauris, appendages, 283 



skull, 150 



vertebrae, 46 

 Iguana, pectoral girdle, 250 

 Iliac region, 229 

 Ilio-ischiadic fenestra, 270 

 Ilio-pectineal process, 273 

 Ilium, 230 

 Inca bones, 193 

 Incisive foramina, 191, 197 

 Incisivum, 73 

 Incus, 119, 202 

 Index, 277 



Inferior pharyngeals, 114 

 Infraclavicle, 230 

 Infranasal bone, 142 

 Infraorbital bones, 74, 94 



stay, III 

 Infrarostral cartilage, 132 

 Infratemporal fossa, 76, 137 

 Innominate bone, 271 

 Insectivora, appendages, 294 



skull, 205 

 Intercalare, 28 

 Intercentrum, 28 

 Interclavicle, 55, 236 

 Interfrontal bone, 122 

 Tnterhyal cartilage, 95, "4 

 Intermaxilla, 73 

 Intermedium, 276 



Interoperculum, 98 

 Interorbital septum, 64 

 Interparietal, 72 

 Interspinals, 223 

 Intertrabecula, 171 

 Intervertebral disc, 22 



foramen, 49 



ligament, 49 

 Ischial tuberosities, 275 

 Ischio-pubic fenestra, 271 



region, 229 

 Ischium, 231 

 Isopedin, 11 



Jacobson's organ, 191 

 Joints, 8 

 Jugal bone, 73 

 Jugular foramen, 62 

 plates, 98 



Labial cartilage, 68 



Lacerta, chondrocranium, 134 



hyoid, 174 



lower jaw, 78 



nasal region, 75 

 Lacertilia, chondrocranium, 152 



ribs, 44 



skull, 154 



sternum, 54 

 Lacrimal bone, 74 

 Lagenorhynchus, cranium, 212 

 Lambdoid suture, 186 

 Lamina cribrosa, 186 



papyracea, 190 

 Lateral line bones, 7, 174 

 Lemurs, skull, 219 

 Lepidosiren, skull, 116 

 Lepidosteus, chondrocranium, 103 



skull, 104 



vertebrae, s,^ 

 Lepidotrichia, 221 

 Lepospondylous vertebrae, 37 

 Litopterna, skull, 215 

 Lumbar vertebrae, 27 

 Lunatum, 277 

 Lyra, 122 

 Lysorophus. skull, 128 



Malar bone, 73 

 Malleolus, 293 

 Malleus, 119, 199, 202 



