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THE FRIGATE PELICAN. 



Pelecaninas in having no 

 pyloric lobe. The duode- 

 num also, d ef, does not at 

 first pass forward, but di- 

 rectly curves round the sto- 

 mach, returning at the dis- 

 tance of 2\ inches, and the 

 intestine, d efg h i, is con- 

 voluted with 9 folds. It is 

 36 inches long, 5 twelfths 

 wide in the duodenal por- 

 tion, contracts to 3 twelfths; 

 the coeca are two small 

 knobs 2 twelfths long, 1^ 

 twelfths in breadth; the 

 rectum 3 inches long, for 1 

 inch 8 twelfths its width is 

 3^ twelfths, the remaining 

 part forming a globular 

 cloaca 1^ inches in diame- 

 ter. 



The trachea is S^ inches 

 long, its width at the com- 

 mencement A\ twelfths, 

 presently after 4 twelfths, 

 contracting to 3|- twelfths. 

 It is a little flattened: the 

 rings 112, cartilaginous. 

 The inferior larynx is great- 

 ly expanded antero-poste- 

 riorly, and the first dimi- 

 diate ring is 5 twelfths in 

 extent, with a somewhat 

 smaller ring beyond it. The 

 lateral muscles are very 

 slender; the sterno-tracheal, 

 which passes off at the dis 

 tance of \ inch from the 

 bifurcation, is strong; there 

 is a slender slip on each 



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