PLATE II. 



FIGS. 1-4. MUSCLES OF THE FOREARM OF THE ALLIGATOR. 



(From Bronn.) 



FIGS. 5-7. (From Bronn after Rathke.) 



FIG. I. i, humero-radialis longus (supinator longus); 2, humero-radialis medialis 

 (flexor carpi radialis); j, carpo-phalangei I digit! V; 4, carpo-phalar.gei 

 (flexor digitorum communis brevis); 5, humeor-ulno-phalangei (flexor 

 digitorum communis profundus); 6, humero-radialis longus; 5. flexor carpi 

 ulnaris; 7, pisiforme-phalangeus primus digit! V; 8, carpo-phalangeus I; 

 9, carpo-metacarpalis I. 



FIG. 2. 1-5 as in FIG. i; a, humero-carpi-radialis; b, humero-metacarpalis III, 

 IV, V (extensor digitorum longus); c, humero-carpi-ulnaris; d, carpo- 

 phalangei (extensor digitorum brevis). 



FIG. 3. a, b, humero-ulno-phalangei (flexor digitorum communis profundus). 



FIG. 4. a, ulno-carpi-radialis; b, ulna; c, humero-ulnaris-lateralis (flexor carpi 

 ulnaris); d, humero-radialis brevis (supinator brevis). 



FIG. 5. HEAD, NECK, AND A PART OF THE BODY OF A CROCODILUS 

 VULGARIS. (Ventral View). 



a, lower jaw; b, upper jaw; c, arch of palate; d, fold of palate; h, 

 pterygoideus internus (Rathke); ;', pterygoideus externus (Rathke); 

 k, longus colli (Rathke); m, rectus capitis anticus major (Rathke); 

 n, sterno-mastoideus (Rathke); o, levator scapulae (Rathke); p, scalenus 

 (Rathke). 



FIG. 6. PART OF A SIMILAR PREPARATION OF C. RHOMBIFER. 



a, the hindermost of the superior maxillary teeth; b, lower jaw; c, 

 wings of palate; d, pterygoid; e, quadrate; g, intertransversalis (Rathke); 

 h, trachelomastoideus (Rathke); ;', levator scapulae (Rathke); fc, longus 

 colli (Rathke); m, pterygoideus externus (Rathke); n, rectus capitis 

 anticus major (Rathke). 



FIG. 7. A PART OF THE HEAD AND NECK OF ALLIGATOR Lucius. 



a, pterygoideus externus (Rathke); b, digastricus (Rathke); c, rectus 

 capitis anticus major (Rathke); d, sterno-mastoideus, anterior belly 

 (Rathke); e, sterno-mastoideus, posterior belly (Rathke); /, levator 

 scapulae (Rathke); g, cervicalis adscendens (Rathke); h, longus colli 

 (Rathke); i, intertransversalis (Rathke); k, trachelomastoideus (Rathke); 

 /, bi venter cervicis (Rathke); m, splenius colli (Rathke); n, splenius 

 capitis (Rathke). 



