140 PROCEEDINGS OF THE ACADEMY OF [PaRT I 



"The protoplasmic body does not possess any flagellum, any more 

 than does the amoeba stage of Chrysamoeha." 

 "The protoplasmic body does not possess any flagellum, no more 

 than does the amoeba stage of Chrysamoeba." 



But here also, as in Chrysamoeha, a flagellated state may appear, 

 not only after an act of division,i^ but as the result of a total trans- 

 formation, a process hitherto unknown in Chryso'pyxis, but which 

 I happened to verify on several occasions : the body becomes spheri- 

 cal, the pseudopodiar etract, and the little spherule begins quivering 

 in its cell, a flagellum, in fact, is there already; then the spherule 

 lengthens, reaches the aperture, becomes swollen anteriorly, so as 

 to press on the tubular opening and force the exit (Plate VII, fig. 47), 

 and finally leaves the cell. It looks now almost like a small fla- 

 gellated Chrysamoeba, yet relatively broader and more rounded, 

 with an anterior rapidly swinging flagellum, a normal chromato- 

 phore, small granules and often a leucosine body (Plate VII, fig. 48). 



Both figs. 46 and 49, Plate VII, and especially the latter figure, 

 represent cells which are entirely without the normal tubular ex- 

 tremity. A good many such specimens were met with, generally 

 smaller than the type, about 11 or 12^"- in length as well as in 

 breadth. Were they young individuals? or was it a different 

 species, perhaps Lauterborn's Chrysopyxis stenostoma (Siisserwas- 

 ser-Flora," p. 28, fig. 43), which, however, is described as possess- 

 ing two chromatophores. At any rate, it is well to reproduce here 

 the words accompanying Pascher's diagnosis of Chrysopyxis: 

 "a, genus too httle studied, and whose several forms are relatively 

 little known." 



Hyalobryon ramosiun Lauterborn. Plate VIII, flgs. 50-54. 



In that same marsh at Pinchat was often found, in every season 

 and often in great abundance, the Flagellate for which Lauterborn 

 (23) created the name Hyalohryon. "The present genus of Chryso- 

 monadina," says the German observer, "deserves its name rightly 

 to this extent, that it is positively difficult to distinguish clearly 



^' Plate VII, fig. 46 shows such a case of division, which is well known today, 

 whose process Pascher summarizes in the following words ("Siisswasser-Flora," 

 p. 28): "Multiplication by longitudinal division of the protoplast, after which 

 one of the parts leaves the shell in the form of a zoospore with a single flagellum." 

 In this fig. 46, it is to be noted that, in spite of the process being already very 

 far advanced towards its end, one pseudopod was still to be seen, relatively 

 thick, and pointing straight up; microbes were still caught, and slowly glided 

 along towards the body. 



