PLATE V. (From Bronn, after Gadow.) 

 FIG. i. HATTERIA PUNCTATA. (Ventral View.) 



FIG. 2. ALLIGATOR MISSISSIPPIENSIS. LEFT POSTERIOR EXTREMITY; 

 FOOT IN PRONATION, HENCE SEEN FROM THE DORSAL SIDE. 



Ig, t, f, LlGAMENTUM TlBIO-FlBULARE. 



FIG. 3. A. MISSISSIPPIENSIS. MUSCLES OF THE DORSAL SURFACE 

 OF THE LOWER LEG AND FOOT. 



atnb, ambiens; cap, ext, gastr, external head of gastrocnemius; cap, int, gastr, in- 

 ternal head of gastrocnemius; cd, fm. caudali-femoralis; cd, tl, fern, caudi-ilio- 

 femoralis; ex, it, tb, extensor ilio-tibialis; ext, I (long), dig, extensor longus 

 digitorum; ft, (6, ext, flexor tibialis externus; fl, tb, int, flexor tibialis internus; 

 jm, tb, femoro-tibialis; ;/, cd, ilio-caudalis; il, cost, ilio-costalis; il, fib, ilio- 

 fibularis; il.fm (d,j). ilio-femoralis; il, s, cd, ilio-sacro-caudalis; is, cd, ischio- 

 caudalis; is, /, ischio-femoralis; ob, ext, obliquus externus; pb, cd, pubi-caudalis; 

 pb, n, tb, pubi-ischio-tibialis; pb, tb, pubi-tibialis; peron, ant, peroneus an- 

 terior; peron, post, peroneus posterior; p, is, f, ext. pubi-ischio-femoralis 

 externus; p, is, /, int, pubi-ischio-femoralis internus; p, is, f, post, pubi- 

 ischio-femoralis posterior; qudr, Ib, quadratus lumborum; reel, rectus abdo- 

 minis; lib, ant, tibialis anticus; lib, post, tibialis posticus; trans, transversus 

 abdominis; Ir, per, transversus perinei; m, post, il, posterior border of ilium; 

 06, foramen in pubis for the obturator nerve; o, il, ilium; o, is, ischium; 

 o, pb, pubis; o, cl, cloacal bone; pr, I, pb, lateral process of pubis; pr, Ir, trans- 

 verse process: sp, ant, il, anterior spine of ilium; Sy, p, symphysis pubis; 

 Sy, is, symphysis of ischium; tb, is, tubercle of ischium. 



