^fX EUROPEAN NEMERTEANS. 



Urticatiug elements, of which the body measures about 

 15 ;U , the thread up to 35 |tt are present in the cellular 

 coating of the proboscis. 



The live specimen was sent over from Naples in Fe- 

 bruary 1880. 



lSj"ole8 li-oiii the Leycleii Museum, 'N'ol. 11. 



