176 



ECHINOIDEA. II. 



Prospatangtis\ the name Schisastcr is retained for the rest of the species of this group. Further 

 Echinocardiuvi is restored for (Moira) airopos. — I may refer to my remarks above, p. 132, regarding 

 these unfortunate changes. 



It is, indeed, quite discouraging with all the changes of the generic names, and it seems im- 

 possible to reach an arrangement which can be unanimously accepted. I think there is only one way 

 to get out of this almost insupportable condition of the nomenclature, viz. if all the Echinologists of 

 the present time meet to form an international committee and come to an agreement regarding all 

 the names of Echiuoidea, one by one, and then publish a complete list of all the names finally adopted, 

 with their synonyms and complete history. From the date of publication of such a list the endless and 

 annoying discussions and the perplexing changes would cease — they will scarcely cease before. Per- 

 haps it would be necessary to do so also for other difficult groups; for a first trial the Echini would 

 be an excellent group, as the number of species and names is not so exceedingly great. 



