1891-92.] Prof. Sir Wm. Turner on the Lesser Rorqual. 47 
hard palate was seen, with tlie strong mesial longitudinal keel 
marking the site of the vomer and inner borders of the two 
o 
superior maxillcO. In the interval between the posterior ends of the 
two halves of the baleen wreath, the mucous membrane showed row\s 
of shallow ridges and furrows, which converged to the opening into 
the pharynx. 
The two halves of the lower jaw came to a point at the symphysis, 
and they enclosed within their curvature the massive tongue. This 
Fig. 3. — The root of the tongue and a large part of the roof of the mouth. 
The convergence of the posterior ends of the baleen wreaths in front of the 
bucco-pharyngeal opening is shown. 
organ occupied the floor of the mouth, and was sunk below the 
level of the lower jaw, whilst the fluted integument below it 
