334 W. ARCHER. 



The first indication of test is the appearance of a clear border 

 around the body^ as it were, hardening by degrees into an, 

 at first, extremely delicate line, by-and-by assuming its double 

 contour (fig. 7). 



Taking a momentary review of the stages (here so briefly 

 disposed of) as described at great length by the author, I fancy 

 the more general conclusion would be to regard, not the "con- 

 jugation," not the presence or the presumed operation of the 

 so-called " Befruchtungskorperchen^' — as the indication or 

 expression of a sexual reproduction — but rather, if any of 

 the described processes is to be so interpreted, it must be the 

 conjugation of the " germs" of two individuals, the " mono- 

 stigmatic form'^ so as to produce the " diplostigmatic," which 

 grows into a new representative of the species. This seems 

 very fairly comparable to the conjugation of zoospores of 

 Algae. 



As to the identity of thisform it really appears, as mentioned, 

 to be one and the same with Chlamydophrys stercorea, Cienk. 

 (18T5) as will be, I fancy, sufficiently readily seen on comparing 

 all the figures (inorig.), or, indeed, even these here repeated. 

 If that be so the name Troglodytes zoster (\d>lQ) \\o\x\(\in\\ to 

 the ground. In fact, Chlamydophrys as a genus may turn 

 out to be coincident with Platoum, E. Schulze. 



Cochliopodium pellucidum et C. pilosuni, Hertwig et Lesser, 

 = Amphizonella vestita, Archer. 

 Whilst I long since discovered my own errors of interpre- 

 tation in respect to the form I first recorded, referring it 

 then to Amphiuozella, Greeff", under the name of ^. vestita, 

 I am none the less convinced that, so far as our knowledge 

 goes, only one species exists referable to the restricted genus 

 so well described by Hertwig and Lesser under the name of 

 Cochliopodium. I feel pretty well satisfied that not only the 

 green (chlorophyll-bearing) and the colourless form are one 

 and the same, but that even the pilose condition cannot be 

 regarded as specifically distinct from either. Althougli the 

 latter was the first form I had seen, it is really by far the 

 most rare, the colourless non-chlorophylliferous being the 

 most frequent. I have, a few summers ago, taken gatherings 

 in which the three forms occurred commingled, and showing 

 every possible intermediate state between the extremes as 

 regards the characteristics in question. Sometimes the 

 hair-like processes were in length not far from |- of the 

 diameter of the body, and of all lengths down to an almost 

 imperceptible pile, finally wholly absent. Sometimes the 

 examples were densely loaded with a layer of chlorophyll- 



