1865.] OF PHYSALUS ANTIQUORUM. 213 
Eschricht* has described and figured a singular arrangement of 
the mucous folds of the intestine in Megaptera longimana, which is 
very similar to the above ; besides, he also figures a still more curious 
pouch-like character in the Hyperoodont. John Huntert had pre- 
viously described this structure in the Hyperoodon; and he remarks 
that “in the Bottlenose the inner coat, through nearly the whole 
trace of the intestine, is thrown into large cells, and these again sub- 
divided into smaller, the axis of which cells is not perpendicular to 
a transverse section of the intestine, but oblique, forming pouches 
with the mouths downwards, and acting almost like valves when 
_anything is attempted to be passed in a contrary direction.’ Ad- 
mirable preparations of the same exist in the collection at the College 
of Surgeons (Physiol. Series, nos. 709-712). 
The opening of the hepatic duct was immediately below the junc- 
tion of the last cavity of the stomach with the small intestines. 
The accurate entire length of the large intestines was not ascer- 
tained ; but as the first piece examined measured 22 feet 2 inches, 
and another portion 10 feet, it may reasonably be inferred that the 
total length was little, if at all, short of 40 feet. The czecum was of 
moderate dimensions, with an internal circumference of 153 inches. 
The folds of its mucous membrane were placed transversely, and each 
had a depth of from 2 to 3 inches; these continued onwards to the 
colon and rectum, where they were not so large or closely set toge- 
ther. Yellow-coloured feces filled in great part the colon and rec- 
tum ; and over the mucous surface of these, small oval-shaped entozoa 
(Echinorhynchus’) swarmed in myriads. 
Circumstances prevented the larynx from being very carefully 
examined ; its measurements were as follows :-— 
inches. 
Internal circumference a foot below its chink ........... - 393 
Internal circumference at the epiglottis........ a i eas 424 
Across the base of the epiglottis itself ........ Simon aiela xe 13 
Opening of the vocal cords antero-posteriorly ............ 12 
Opening of the vocal cords transversely at anterior end .... 7 
Opening of the vocal cords transversely at posterior end.... 3 
Trachea immediately above bifurcation, behind forwards.... 10 
Trachea immediately above bifurcation, transversely........ 15 
Trachea, fibro-elastic tissue behind cartilages ............ 5 
The heart agreed closely with that of ordinary mammals, varying 
only slightly in the number and disposition of the chordze tendinez. 
As it lay on the ground it measured from base to apex 32"; breadth 
at middle 35", and at the base 42". The different segments of the 
semilunar valves were 9! by 7" in dimensions respectively. There 
were no corpora aurantii. The aorta 27" in circumference ; the walls 
nearly an inch thick. The ductus arteriosus existed as a thick 
roundish elastic cord placed a little obliquely in relation to the pul- 
* Loc. cit. p. 100, tab. 2. figs. 3 & 4. 
+ Ibid. p. 42, tab. 2. figs. 3 & 4, 
¢ Loe, cit. vol. iv. p. 361. 
