THE POSITION OF SPONGES IN THE 

 ANIMAL KINGDOM: A CORRECTION. 



IN my article on this subject in the last number of 

 Science Progress, I quoted Sollas as having in 1888 

 {^' Challenger' Reports, vol. xxv.) proposed the term Pai'azoa 

 for Sponges as a group of equal systematic value with the 

 Metazoa, and considered by him as descended independently 

 from the Choanoflagellata. It has been brought to my 

 notice that these ideas were put forth by Sollas four years 

 earlier than was stated by me to be the case, namely, in 

 1884 {Quart. Journ. Micr. Sci., N^.S., xxiv., p. 603 et seq.). 

 I hasten therefore to make this correction, with reofrets 

 at having overlooked the earlier memoir. 



E. A. MixcHiN. 



