INDEX 



335 



Skull, Dipnoi, 115 



Elasmobranch, 81 



Ganoids, 98 



Ichthyosauria, 150 



Mammalia, 181 



ossification, 68 



Ostracoderms, 90 



Reptilia, 136 



Sauropsida, 135 



Stegocrotaphic, 7 



Teleost, 105 



Teleostome, 91 



Tetrapoda, 118 



vertebral theory, 58 

 Skull-fin cartilage, 234 

 Solenodon, cranium, 193 

 Solenoglyph skull, 159 

 Somatic wall, 2 

 Spelerpes, pectoral girdle, 246 

 Sphserodactylus pectoral girdle, 250 

 Sphargis, pelvis, 266 

 Sphenethmoid, 126, 132 



commissure, 61 

 Sphenodon, chondrocranium, 161 



humerus, 281 



limbs, 283 



pectoral girdle, 249 



pelvis, 264 



skull, 173, 174 



vertebrae, 43 

 Sphenoid bone, 182 



rostrum, 140 



sinus, 192 

 Sphenoidalia, 69 

 Sphenolaterals, 60 

 Sphenotic, 70 

 Spina dorsalis, 18 



of scapula, 256 

 Spinal process, 18 

 Spine, occipital, 93 

 Spiracular cartilage, 87 

 Splanchnic wall, 2 

 Splenial, 78 

 Squama, 195 

 Squamata, appendages, 284 



chondrocranium, 152 



pectoral girdle, 249 



skull, 151 



vertebrae, 43 

 Squamosal bone, 73 

 Squamoso-pterotic, no 



Squatina, skull, 67 



vertebrae, 30 

 Stapes, 119, 2or 

 Stegocephals, appendages, 279 



skull, 121 



vertebrae, 36 

 Stegocrotophic skull, 75 

 Stegocrotaphy, 122 

 Sternal rib, 51 

 Sternebrae, 51 

 Sternum, 51 



Amphibia, 52 



development, 52 



fishes, 52 



Mammals, 56 



Reptilia, 54 

 Streptostylica, 142 

 Streptostyly, 135 

 Struthio, pectoral girdle, 255 



pelvis, 271 



sternum, 56 

 Stylohyal, 114, 201 



cartilage, 95 



ligament, 201 

 Styloid process, 201, 292 

 Stylopodium, 275 

 Stylus, 119 



Submaxillary cartilage, 106 

 Suboperculum, 98 

 Suborbital bone, 94 



crest, 85 

 Subrostral cartilage, 106 

 Supraangulare, 78 

 Suprabranchials, 114 

 Supraclavicula, 230 

 Supracleithrum, 230 

 Supracoracoid foramen, 229 

 Supraethmoid, 94, 109 

 Supraoccipital, 69 

 Supraorbital bones, 74, 94 



crest, 85 

 Suprapharyngeal bone, 114 

 Suprarostral plate, 131 

 Suprascapula, 229 

 Supraseptal plates, 64, 137 

 Suprasphenoid, 109 

 Supratemporal bone, 74 



fossa, 76, 137 

 Surangulare, 78 

 Sutural bones, 8, 193 

 Suture, 9, 186 



