ROCK DOVE. 281 



a half in length, and half a twelfth in breadth, Fig. 2. The 

 gizzard, ^, ^, /, ^, /, is of an oblong form, oblique, an inch and 

 eight twelfths long, its transverse diameter one inch. Its 

 lateral muscles, ?, /, are extremely thick, being six twelfths in 

 the middle ; the lower muscle, ^, is also strong and prominent. 

 The inner coat is very strong and thick, and presents two flat- 

 tened surfaces, which are longitudinally fissured, opposite the 

 lateral muscles. The cardiac lobe. Fig. 3, ^, is rather pro- 

 minent. The intestine, Fig. 1, m^ ??, o, p^ q^ r, is three feet 

 ten inches long ; its duodenal part, m^ n^ o, averages half an 

 inch in diameter ; but it gradually diminishes, so as to have 

 a diameter of only three twelfths at the distance of a foot from 

 the pylorus. It continues thus until near the coeca, when it 

 enlarges to four twelfths, which is the diameter of the rectum, 

 Fig. 4, «, 5, c. The coeca. Fig. 4, c, 6?, are only three and a 

 half twelfths long, and come off at the distance of an inch and a 

 half from the anus. 



The crop contained a large quantity of grain, chiefly bear, 

 Hordeum mdgare^ the small grey oat, a variety of ^f^??a satha, 

 a few grains of A'cena fatua^ and some small seeds. In the 

 gizzard were husks of these seeds, with fragments of quartz and 

 felspar, varying from one to two twelfths. 



Length to end of tail 14/^ inches*; extent of wings 27; 

 wing from flexure 9i ; tail 4f ; bill along the ridge \%^ along 

 the edge of lower mandible 1 ; tarsus l^^^ '•> fii'st toe ^3, its 

 claw 4i twelfths ; second toe 10^ twelfths, its claw /^ ; third 

 toe 1 inch 2i twelfths, its claw 6i twelfths ; fourth toe lOf 

 twelfths, its claw 4i tw^elfths. 



Female. — The female has the colours rather darker and duller, 

 the gloss of the neck less splendent, and the green tints of 

 smaller extent. The black bars on the w4ngs are shaded with 

 grey ; and the tips of the wings and tail are tinged with 

 brown. The oesophagus is six inches and a quarter long ; the 

 crop three inches in breadth ; the stomach an inch and eight 

 twelfths in its greatest diameter ; the intestine three feet four 

 inches long, the diameter of its duodenal portion four inches ; 

 the coeca four twelfths long ; the rectum an inch and three 

 fourths. 



