FIG. 287. Columba livia. Dissection from the right side. The body-wall, with 

 the vertebral column, sternum, brain, etc., are in sagittal section : portions of the 

 gullet and crop are cut away and the cloaca is opened; nearly the whole of the 

 ilium is removed, and the duodenum is displaced outwards, a. ao, aortic arch; 

 bd. I, bd. 2, bile-ducts; b. fabr, bursa Fabricii; cbl, cerebellum; cae, right 

 caecum; cfdm, coprodaeum; cr, cere; crb. h, left cerebral hemisphere; crp, 

 crop; cr. v.i, first cervical vertebrae; di. cce, diacosle; dnt, dentary; duo, 

 duodenum; eus. ap, aperture of Eustachian tubes; giz, gizzard (dotted behind 

 the liver); gl, glottis; gul, gullet; Urn, ilium; /. orb. sp, inter-orbital septum; 

 kd, right kidney; Ing, right lung; Ir, liver (right lobe) ; na, bristle passed from 

 nostril into mouth; obi. .y*/, oblique septum; o. gl, oil gland; pcd, pericardium; 

 pmx, pre-maxilla; pn, pancreas; pn. b, pineal body; pnd. 1-3, pancreatic 

 ducts; pr. c-v, right pre-caval; prdm, proctodseum; prvn, proventriculus 

 (dotted behind liver) ; f>t. cv, post-caval; pty. b, pituitary body; pyg. st, pygo- 

 style; r. au, right auricle; r. br, right bronchus; ret, rectum; r. vnt, right 

 ventricle; sp. cd, spinal cord; spl, spleen (dotted behind liver); s. rhb, sinus 

 rhomboidalis; s. scr, syn-sacrum; st, carina sterni; syr, syrinx; tk. 7>. /, first, 

 and tk. v-j, fifth thoracic vertebrae: tng, tongue: tr, trachea; fs, right testis; 

 ur, aperture of left ureter; urdm, urodasum; v. df, aperture of left vaa deferens. 

 47S 



