286 ZAGLOSSUS. 
lies in a loop of the small intestine. It measured 37 by 16 mm. in the young 
specimen examined. Its duct is short. and as just noted, joins that from the 
gall bladder within the substance of the pancreas. Chapman (1887) in his 
account of the anatomy of the Echidna states that the pancreas has a separate 
duct in the specimen he studied and it enters the intestine at a point nearer the 
pylorus than does the bile duct. This, as he admits, is contrary to the usual 
condition, and must have been abnormal. 
Mesrntertes.— The duodenohepatic ligament is short, about 15 mm. long. 
About the same distance posteriorly is a short ligament binding the small in- 
testine to the caudate lobe of the liver. The omental sac is largely developed, 
consisting of a thin and delicate mesentery with deposits of fat along the courses 
of the blood vessels. The large spleen is bound by it to the cardiac curvature 
of the stomach. The mesorectum and the mesocolon go forward to the anterior 
end of the large intestine, at which point the mesentery passes in a fan-shape 
to the entire length of the small intestine except for a short space, about 15 
mm., at a point nearly thrice that distance back from the pylorus. 
Spiteen.— The spleen (Plate 2, fig. 6) is practically like that of the Echidna, 
proportionately large and of three distinct lobes:— a long narrow lobe, about 
38 mm. long and 11 wide along the edge of the cardiac curve of the stomach, 
a similar but longer (80 mm. by 10) lobe on the greater or posterior curvature, 
and third, a lobe lying in the mesentery of the large intestine, narrow at first, © 
but becoming terminally a large rounded mass, about 28 mm. in longest 
diameter and 19 mm. in transverse diameter. 
KIDNEYS AND GENITALIA.— The kidneys and genitalia seem to be quite as 
in the Echidna. The former are large and rounded, about 32 by 23 mm. in 
the specimen studied, and 18 mm. thick. The adrenal body lies just anterior 
to the hilum on the medial side of the kidney, is oval in outline, and measures 
about 14 by 7.5 mm. The ureters do not empty into the bladder directly, 
but run each to a point at its mouth just posterior to the opening of the vas 
deferens. The two ducts open here into the urethra by a common orifice pro- 
vided with a small papilla. The testis is received into a slight hollow of the 
body-wall. The penis lies in the floor of the cloaca. As in the Echidna its 
gland is divided into four lobes. The cloaca is some 25 mm. long, and the 
large intestine enters well posterior to bladder, ureters, and vasa deferentia. 
Lunes.— The lungs (Plate 2, fig. 7) seem rather small in proportion to the 
size of the animal. The right lung has two lobes. The larger extends the 
entire length of the pleural cavity and enfolds the smaller or ventral lobe so 
