UPON ANIMAL INDIVIDUALITY 151 



account for the Successive forms of the Beetle-individual or of the 

 Horse-individual — since they are phenomena of essentially the same 

 nature. 



When the forms of the Individual are independent it becomes 

 desirable to have some special name by which we may denote them 

 so as to avoid the incessant ambiguity of the two senses of the word 

 individual. For these forms the Lecturer some time ago proposed 

 the name " Zooid." Thus the Salpa-individual is represented by two 

 Zooids ; the Fluke by three ; the Aphis by nine or eleven, &c. 



The use of this term is of course a mere matter of convenience 

 and has nothing to do with the question of Individuality itself 



