252 Mr. H. J. Carter on Filigerous Green 



sometimes, indeed, I have not been able to see them at all in 

 front. But in none of my figures is the individual cell repre- 

 sented with more than one cilium ; and the sketch which 

 beyond all others bears under it the term " correct " is that 

 now chiefly described and figured. 



On this occasion, too, there were large, elliptical, unciliated 

 cells present, measuring l-675th inch long by l-1080th broad, 

 containing thirty-two cells ; but the cells so formed and so 

 arranged are altogether so like Uvella bodo that, although the 

 division had gone one degree further, and they were still en- 

 closed in the parent deciduous envelope or cell, there can be 

 little doubt that they were respectively so many groups of 

 Uvella bodo, which, on being liberated, would have assumed 

 the same characters, only in the 32- instead of the 16-cell form. 

 It is worthy of remark, too, that there was an indication of a 

 tail to this cell (fig. 15 a). 



Finally, the last note, with a figure, which I possess on the 

 subject runs as follows : — 



"June 11, 1861. Found the 16-cell Uvella bodo numerous 

 with Eudorina elegans. There seems to be very little doubt 

 that it is nothing more than one of the forms assumed by the 

 16-cell packets of young Eudorina?. The different sizes of 

 the groups, the central cavity or elongated central cell upon 

 which the green cells of the Uvella are fixed (fig. 14 2>), and their 

 general development, altogether favour the view now taken. 

 I never thought that it was a distinct species or organism. 

 When the tails are very short, rendering the cells almost 

 round, it is close upon a 16-cell Eudorina. There is no other 

 green organism in the water (which is from a little temporary 

 pool) with the Eudorina but Uvella bodo and the other forms 

 of Eudorina-'p&cketS) viz. Gonium pectorals &c." 



This observation seems to indicate that Uvella bodo is at 

 least one of the forms assumed by the cells of Eudorina when 

 they divide up into the 16- and 32-cell groups respectively. 



But, to return to the one which I have figured and more 

 particularly described : this, as before stated, was accom- 

 panied by a whole host of filigerous green Infusoria, among 

 which were many kinds of Euglena ; while the eye-spot (and 

 this is essential) was at the base of the cilium, which was also 

 single in each individual of the group (fig. 14 d), at the same 

 time that there were other groups of Uvella bodo present still 

 unliberated from the parent cell, which, be it remembered, had 

 a kind of tail or caudal prolongation (fig. 15 a). Hence Uvella 

 bodo here appeared to have been derived from a subdivision of 

 the contents of a Euglena like E. viridis, and not from a cell 

 of Eudorina, which has two cilia, two contracting vesicles at 



