88 BULLET'IN OF THE 



kind hang in a small cluster from the under side of the tentacle, not far 

 li'om the origin of the same from the bell margin. They are said to bear 

 suckers at their distal ends. In the single specimen this structure could not 

 be made out. The second kind of appendages to the tentacles are more slender 

 than the former, and bear along their sides small hisso-cells. These branches 

 are longer and appear more flexible than the former. The manubrium extends 

 from its origin from the inner bell walls to the vicinity of the bell opening. 

 The nundjer of oral tentacles is probably five. Six small lateral projections 

 on the outer walls of the manubrium, about midway its length, indicate the 

 future o\'aries or sexual organs. 



'o^' 



Cambridge, August, 1883. 



