XIII 



PIIYLUIM ClloliDATA 



83 



< 



(mtcp) or hand-bones, the iihalangcs (ph) or finr(ei'-bonos, in the 

 fore-limb; tarsals or ankle-bones, 'iiidatarsals (mtts; di' l'u(jt- 

 bones, and phalanges (ph) or toe-bones, in the hind-linil). The 

 carpals and tarsals consist typically <)!' three rows of small iinilules 

 of bone or cartilat^e, the proximal row C(nitaining- three, the iniddle 

 two, and the distal five elements. The three proximal cai'pals are 

 called respectively radialc (ra), intermediuin (int), and nlnare 

 (ul), those of the middle row the first and second centralia (en. 1, 

 en. 2), those of the third row the five distalia (dst. 1-5), the 

 separate elements being distinguished by numbers, counting from 



3CP 



PU 



-UL 



dst.i ^^^^t 5 



Fl 



TTvlls.i— //n n \\\\ — raits. 5 



Figs. 767 and 7(38. — Diagrams of the fore- and hind-limbs with the iimb-girdles. aclh. acetabulum ; 

 ciJ. glenoid cavity ; /). cor. procoracoid ; / — V, digits, lleplacing bones — cn.l, en. 2, contralia ; 

 COR. coracoid ; dst. 1—5, distalia ; FE. femur ; TI. fibula ; fi. fibulare ; XXU, humerus ; 

 III. ilium; int. intermedium; IS. iscliium ; mtcp. 1 — 5, metacarpals; mtts.l — 5, 

 metatarsals; ph. phalanges; PU. pubis; RA. radius; ra. radial e ; SCP. scapula; TI. 

 tibia ; ti. tibiale ; UIi. ulna ; ul ulnarc. Investing bone — CL. clavicle. 



the anterior or radial edge of the limb. In the tarsus the bones 

 of the first row are known respectively as tibiale (ti), intermedium 

 (int), and fihidarc (fi), those of the second row as centralia (en. 1, 

 en. 2), and those of the third as distalia (dst. 1-5). The meta- 

 carpals (mtcp. 1-5) and metatarsals (mtts. 1-5) are five rod-like 

 bones, one articulating with each distale : they are followed by 

 the phalanges (ph), of which each digit may have from one to 

 five. The first digit of the fore-limb (Fig. 7(37, i) is distinguished 

 as the p)ollex or thumb, that of the hind-limb (Fig. 7G8, i) as 

 the hallux or great toe ; the fifth digit of each limb (v) is the 

 minimus. 



In connection with the paired appendages are formed sujjporting 



