488 STRUCTURE AND CLASSIFICATION OF BIRDS 



small, and do not form a sheet of muscle covering the end of 

 the trachea. 



Fig. 231. — C^eoa or Calodromas elegans (AfiEB Fio. 232. — Ca:OA of No- 



Beddaed). thura maculosa (iruiE 



S.I, small Intestine ; L.I, large intestine ; 0, oseca. Bbddabd). Letters AS 



IN Fig. 231. 



