350 



MR. W. K. PARKER ON THE OSTEOLOGY OF BAL^ENICEPS REX. 



hp. Hypo-parapophysis. 



sc. 1st dorsal vertebra (the dotted line 



leads to the scapula). 

 sc. Lower part of sacrum. 

 cd. Caudal vertebrae. 

 ap. Appendages of ribs. 

 il. Ilium. 



in. Ischiadic notch or foramen, 

 ism. Ischium. 

 pb. Pubis. 

 St. Sternum. 

 cp. Costal process. 

 fc. Furculum (behind this bone is the 



coracoid). 

 sc. Scapula (upper letters) . 

 h. Humerus, 

 r. Radius. 

 u. Ulna. 

 ol. Olecranon. 

 cpl. Upper carpal. 

 cp2. Lower carpal. 

 mc. Metacarpus (the bones below these 



are the phalanges). 

 fm. Os femoris. 

 tb. Tibia. 

 fb. Fibula. 



tmt. Tarso-metatarsus. 

 tmt2. Metatarsal of second toe or hallux. 

 c2. Condyle of hallux. 

 d2. Hallux or true second toe. 

 d3. Third or inner toe. 

 d4. Fourth or middle toe. 

 d5. Fifth or outer toe. 

 Fig. 2. Hyoid bones, half uat. size. 



bh. Basi-hyal, with rudiment of uro- 



hyal. 

 th. Thyro-hyal (the joint between the 

 proximal and distal pieces is not 

 shown in this figure). 



Fig. 3. Posterior aspect of atlas, nat. size. 



z. Post-zygapophysis. 

 Fig. 4. Lateral aspect of atlas, nat. size. 

 Fig. 5. Inferior aspect of 9th cervical 

 vertebra, nat. size. 

 pi. Pleurapophysis. 

 pr. Parapophysis. 

 cc. Carotid canal. 

 c. Centrum. 

 Fig. 6. Superior aspect of 9th cervical 

 vertebra, nat. size. 



c. Centrum. 



d. Diapophysis. 

 prz. Pre-zygapophysis. 

 ptg. Post-zygapophysis. 



Fig. 7. Superior aspect of a dorsal vertebra 

 (middle dorsal region), nat size. 

 sp. Spine (metaneurapophysis). 

 d. Diapophysis. 

 prz. Pre-zygapophysis. 

 Post-zygapophysis. 

 Anterior aspect of tibio-tarsal 



joint, nat. size. 

 Tibia, distal end. 

 Tarso-metatarsus, proximal end. 

 Fig. 9. Posterior aspect of tibio-tarsal 

 joint, nat. size. 

 tb. Tibia, distal end. 

 tmt. Tarso-metatarsus, proximal end. 

 Fig. 10. Anterior aspect of distal end of 

 tarso-metatarsus, nat. size. 

 tmt. Tarso-metatarsus, proximal end. 

 c3, c4 & c5. Condyles for 3rd, 4th 

 & 5th toes. 

 Fig. 11. Posterior aspect of distal end of 

 tarso-metatarsus, nat. size. 

 tmt. Tarso-metatarsus. 

 c3, c4 & c5. Condyles for 3rd, 4th 

 & 5th toes. 



ptz. 

 Fig. 8. 



tb. 



tmt. 



