EXPLANATION OF PLATES. 



(323 



Fig. 4. Alimentary Canal of the Com- 

 mon European Crossbill, Loxia 

 etiropcpa. 



a, bill. 



a, b, c, d, oesophagus. 



b, crop. 



d, proventriculus. 

 «» /> ff> gizzard. 

 e,f, lateral muscles. 

 g, lower muscle. 



h, i,j, Jc, I, m, w, intestine. 

 /, coeca. 



Fig. 5. Alimentary Canal of the Field 

 Lark, Alauda arvensis. 



a, the head. 



b, c, d, oesophagus, differing from the 



above, in having no crop. 



e, /, 9, gizzard. 



h, hj, k, I, m, n, intestine. 

 /, coeca. 



Fig. 6. Head of the Corn Bunting, 

 Emberiza Miliaria, 



Fig. 7. Palate of Corn Buntitiy. 



Fig. 8. Head of the Green Linnet, 

 Linaria Chloris. 



Fig. 9. Palate of Green Linnet. 



Fig. 10. Proventriculus and Gizzard 

 of the Chaffinch. 



Fig. 11. Proventriculus and Gizzard 

 of the Yelloiv Bunting. 



Plate IX. Digestive Organs of Wanderers, Vagatores. 



Fig. 1. Alimentary Canal of the Car- 

 rion Crow, Corvus Corone. 



a, the tongue. 



b, b, hyoid bones. 



b, c, d, oesophagus, wide, but without 



crop. 

 e,f, trachea. 

 g, bifurcation of trachea. 

 h, heart. 

 i,j, liver. 

 Is, lung. 

 /, stomach. 

 m, n, 0, p, q, intestine. 



Fig. 2. Stomach of the Carrion Croiv. 



a, a, proventriculus. 



b, c, d, e, stomach. 

 b, c, lateral muscles. 



d, lower muscle. 



e, tendon. 



Fig. 3. Coeca and Rectum of the Car- 

 rion Croiv. 



a, b, part of intestine. 



c, d, coeca. 



Fig. 4. Alimentary Canal of the Jay^ 



Garrulus Glandarius. 

 fl, the tongue. 



b, b, hyoid bones. 



b, c, d, oesophagus. 



d, proventriculus. 



e,y, g, stomach, round, compressed, its 

 muscular coat not separated into 

 distinct muscles, 



g, large tendinous space. 



h, i, j, duodenal fold of intestine. 



k, I, m, continuation of intestine. 



Fig. 5. Coeca and Rectum of the Jay, 



a, b, part of intestine. 



c, d, coeca. 



