250 
DES. A. CAETE AND A. MACALISTEE ON THE 
for the most part occupied by the bodies of entozoa, one in each nidus, their heads 
being firmly attached by hooks imbedded in the fundus of each canal. 
On examination these animals proved to be the Echinorhjnchus porrigens of Rudolphi, 
by whom they were discovered in the same species of whale, and described in his ‘ Syn- 
opsis Entozoorum.’ They are also mentioned by Hunter in the second volume of his 
‘Essays and Observations’*. 
The large intestine extended for the length of 5 feet 8 inches, and communicated with 
a caecum about 8 inches long, which latter exhibited no vermiform appendix ; the blind 
or csecal extremity of this intestine was situated on the right side, and pointed down- 
wards and backwards, with the small intestine lying along its inner margin enclosed in 
the layers of 'the mesocsecum for the distance of about inches. This portion of the 
large intestine was cylindrical, and measured 7 inches in circumference ; from it the colon 
was continued forwards and to the left side, forming a few slight curves for about 1 foot 
of its extent and terminated in the rectum, which was 4 feet long, and passed directly 
backwards to the cloaca. The circumference of this intestine varied from 5 at its centre 
to about 2 inches at its cloacal or anal termination ; this latter was surrounded by circular 
muscular fibres that formed a well-defined and strong sphincter. The colon was imper- 
fectly sacculated, and its coats were nearly the same as those of the small intestines. 
The whole intestinal tract was thus about six times the length of the body of the animal. 
The liver was a large brownish-coloured gland, irregular in outline, and presenting 
two surfaces and two edges. The upper surface measured 22 inches across from side to 
side, and was divided into two lobes right and left ; of these the former was the smaller 
in area ; it was convex, and measured 16 inches in depth from its vertebral or thick to its 
ventral or thin edge. The left lobe was thinner, flatter, and more pointed in front ; it 
measured 16-J- inches in breadth. 
The anterior edge was thin and excavated in the middle into an angular notch, 6 inches 
in depth, for the reception of the umbilical vein. The posterior edge was thick and 
nearly straight, corresponding to a very short coronary ligament, whose layers were 
several inches apart. The falciform ligament separated these lobes, and was readily 
separable into two layers ; it ran the usual course from the umbilical vein in front to the 
vena cava behind. 
The under surface was divided into three lobes by two intervening fissures. The right 
lobe below was smaller than the corresponding portion on its anterior surface, and in 
shape was somewhat crescentic, being, however, much wider anteriorly than along its 
vertebral margin ; to the left it was separated from the Spigelian lobe by the vena cava, 
whilst its right edge corresponded to the right lateral ligament. The lower surface of 
the left lobe was concave, to accommodate the anterior aspect of the stomach ; and its 
left margin presented two small notches and terminated anteriorly in a rather acute 
point. 
* Specimens from this "Whale have been described by Drs. John' Bap.icee and A. Macalistee in the * Proceed- 
ings of the Dublin Natural-History Society ’ for 1865. 
