OCR Text |
Show 1894.] ANATOMY OF PALAMEDEA CORNUTA. 537 greatly. The two large and peculiar caeca are represented in fig. 1; each was sacculated on a fibrous band and rapidly narrowed to a blunt-pointed extremity. W e did not stretch the caeca, as w e desired to preserve them. Measured in a straight line Fig. 1. Caeca of Palamedea. from their wide aperture into the gut to their extremities the left caecum was 4 inches long, the right an inch shorter. The large intestine, measured from the origin of the caeca to the cloaca, was 15 inches. § "WIND-PIPE. The tracheal rings are ossified; this occurs in no bronchial semiring; of these latter there were 9 in the left bronchus, 8 on the right. The syrinx is deeply notched in front and behind. A ligament, which may represent an intrinsic muscle, passes from tbe tracheal ring which is fifth from the end to be inserted in the first bronchial semiring. The sternotracheal muscles arise unusually high up the trachea. The superior pair of extrinsic muscles come very close together on the ventral face of the trachea. |