16 SIR CHARLES ELIOT. 
along the liver and goes under it. About the middle of the under surface of the liver 
the digestive tract dilates again to form the second stomach. After this point, when 
it must presumably be called the intestine, it runs up the left side of the liver, crosses 
its dorsal surface, and on reaching the right side turns backwards and runs to the hind 
part of the body. The liver is deeply grooved (in some places as much as 10 mm.) 
to receive the digestive tract. 
The first stomach bears numerous strong longitudinal folds, which are themselves 
folded and puckered transversely. In the second stomach these folds cease, and are 
replaced by about ten low flat ridges, running into one another here and there, and by 
minute black spines arranged quite irregularly. ‘ These spines are conical, with round 
bases; some are thin and pointed, some thicker and rather blunt. At the exit from 
this stomach there are again longitudinal folds, and the intestine is lamellated 
transversely. The liver appears to enter this stomach by one large duct. No gall- 
bladder was found. The intestine contained black matter, which appeared to consist 
of mud and grit, including a pebble measuring 6 mm. by 4 mm. The animal no 
doubt swallows loose inorganic matter found on the sea bottom. The intestine is very 
large, being 8 mm. wide when it leaves the stomach and 5 mm. at its extreme posterior 
end; much of the work of digestion appears to be performed in it. The liver measures 
30 mm. x 23 mm. It is smooth and undivided, except for the deep channel cut in it 
by the digestive tract. The hollow within it measures 8 mm. x 6mm. The exterior 
surface of the liver is bluish green, but when it is cut the inside appears brownish, and 
is seen to consist of numerous tubes of an average width of 1 mm., although some are 
larger. 
The renal organs are unusually developed. Adhering to the upper surface of the 
liver are two yellow fern-like organs, beautifully ramified. They lie side by side and 
together are 21 mm. long and 11 mm. broad. In the middle of them is a round trans- 
parent chamber with smooth membranous walls. The renal syrinx is large (5°5 mm. x 
4°5 mm.) with strong foliaceous laminz inside. A tube runs backwards from the renal 
organs along the intestine and issues in the renal pore within the branchial circuit. 
The hermaphrodite gland lies under the renal organs and touches the anterior 
part of the liver. It is nearly circular (8 mm. x 7 mm.) and has a large strong duct. 
It is composed of spherical globules, yellowish with white rims. They contain minute 
granules, some circular and some elongate. The anterior genital mass is very small, 
and the animal is probably sexually immature. The mucous gland is yellowish; the 
albumen gland is roundish and darker yellow. The spermatotheca and spermatocyst 
are both rounded, flattened and very small. The vas deferens is an extremely thin 
tube coiled about seven times. The verge is completely retracted into a bag and 
much crumpled, but appears to be relatively large. On one side there is a deep fold, 
probably corresponding to the cleft observed by Dr. Bergh in other species. 
The armature of spines in the stomach is remarkable and is not found in any 
nearly allied genera, though it occurs in Bornella. 
