1865. ] OF PHYSALUS ANTIQUORUM. 211 
inches ; after removal from the jaw, and taken along the great curve 
of its free brush-like margin, the length was 169 inches. 
On the left side I counted 360 of the outer baleen-plates. The 
greatest length of a single one was 30 inches, the breadth of the 
same 11 inches; towards the beak, however, the baleen altered into 
mere hair-like bristles only 5 inches long, and which were continuous 
with the baleen of the opposite side. Knox, in his dissection of 
Balena maximus (P. antiquorum), counted 314 external or labial 
plates of baleen on each side; and he gives as the measurements of 
the largest one, 26 inches in length and 15 in breadth*. The soft, 
broad, fleshy nidus of the baleen, in apposition with the upper jaw, 
tapered at each end, and altogether had a length of 149 inches. 
The results of a series of its transverse measurements, made from 
behind forwards, were as follows—viz., at the extreme posterior end, 
6 inches, then 8, and at widest 14 inches, narrowing from this to 7, 
and at the most anterior portion only 1 inch across. 
The cesophagus was certainly 7 feet, possibly 8 feet long. The 
closed fist could be passed with ease through any part of its course : 
one portion had an internal circumference of 9 inches. In some places 
there were numerous glandular openings, each sufficient in size to 
admit a pin’s head, and ageregated together, forming elongated dia- 
mond-shaped patches. Upon the surface of the mucous membrane, 
in irregular quantities, were scattered, rough, warty-like, whitish 
bodies, equal in size to millet-seeds. This might have been a patho- 
logical condition. 
The stomach consisted of four separate cavities, communicating 
with each other by round, somewhat constricted Openings, as in the 
Porpoise. I did not, however, ascertain the exact position these ca- 
vities bore towards each other in situ; but I made a rough sketch 
of the whole when removed from the body and cut open, which is 
represented in the accompanying woodcut (fig. 2). 
The first cavity, a large globo-pyriform bag, had a greater curva- 
ture measuring 99 inches, and an upper lesser curvature of 30 inches. 
The opening of the cesophagus and that leading into the second 
cavity were each 15 inches in circumference, and situated on oppo- 
site sides of the lesser curvature. The mucous membrane towards 
the greater curvature had its rugze thrown into polygonal folds, which 
above dwindled into mere puckerings. This stomach contained some 
cream-coloured, gelatinous, glairy fluid and fragments of Meduse, 
as also what I took to be remnants of Entomostraca. 
The second cavity was more cylindrical in form, and of consider- 
able length—97 inches. The plications of its mucous membrane fol- 
lowed its long diameter, and these were in thicker ridges than in the 
first cavity. There were no evident remains of food in this division 
of the stomach ; at the same time its mucous surface was reddish and 
partly covered with a brown slimy substance. 
The third cavity was shorter than either of the preceding ones, 
and a trifle less so than the fourth. It was 30 inches long, with a 
* Cat. Prep. Whales. No. 8. 
