462 Beard . — Reproduction in Animals and Plants. 
plications in the processes which result in the building up of 
new individuals after the conjugation, but in the next and final 
one ( Vorticella , woodcut 13) these are met with in a yet more 
exaggerated form, and other amazing things happen prior to 
the conjugation. The reader may be reminded of what most 
of these are due to, i.e. to the differentiation of the conjugating 
individuals into macro-zooids and micro-zooids. The terms 
1st fission 
macro- and micro-gametes used by Maupas are misnomers, 
for, as other instances have made evident, the individuals 
which are present at the beginning of the union culminating 
in conjugation are not really the conjugating forms. The 
true gametes are formed later on within, and as descendants 
of, the ‘ micro-’ and ‘ macro-gamete.’ The differentiation into 
these can hardly be said to affect the conjugating gametes; 
the latter are alike, as in other cases, and do not differ in 
form, as Maupas has shown. It would be incorrect to term 
