16 SIR CHARLES ELIOT. 



alono- the liver aud goes under it. About the middle of the under surface of the liver 

 the dio-estive 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 aud 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 l)y 

 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- 

 liladder 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 

 l)y the digestive tract. The hollow within it measures 8 mm. x 6 mm. 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 arc 

 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 laminae 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, 

 probal)ly corresponding to the cleft observed l)y 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. 



