APPENDIX 



279 



to the course of the life-history of Chlamydomyxa. The observations 

 of Penard suggest that the flagellulate bodies hatching from the spores 

 are gametes, which proceed to conjugate with one another, though the 

 existence of two nuclei in the spoces requires explanation. If this is the 

 case, we have, as in Trichosphaerium and many other Protozoa, a life-cycle 

 in which a sexual phase recurs in a series of generations reproducing by 

 fission. 



With regard to the affinities of Chlamydomyxa, we have seen that the 

 resemblance to Labyrinthula turns out to be in part at least misleading. 



FIG. 2. 



Chlamydomyxa. o, Early stage of spore-formation in C. montona. The contents of a cyst 

 have become divided up into young spores ; b, a cyst of C. labyrinthuloides, with mature spores, 

 x 200; c, a single spore of C. montana, showing two nuclei ; (7, flagellate body hatched from 

 a spore, (a, c, and d after Penard ; b after Archer.) 



We are unable to agree with Penard that it is allied to the Mycetozoa, 

 for there is no evidence that the protoplasmic masses are plasmodia in 

 the true sense of the term. It appears that the most satisfactory position 

 to assign to it, in the present preliminary stage of our knowledge of life- 

 Jiistories, is as an isolated rhizopod, containing chromatophores, which 

 may be provisionally placed in the neighbourhood of the freshwater forms 

 with filose pseudopodia which, in this work, are included in the Order 

 Gromiidea of the Foraminifera (see p. 283). In the possession of many 

 nuclei it resembles Trichosphaerium among the Rhizopoda Lobosa. 



LITERATURE. 



1. Archer, W. On Chlamydomyxa labyrinthuloides, nov. gen. et sp., a New 

 Freshwater Sarcodic Organism. Quart. Journ. Micr. Sci. N.S. xv. 

 (1875), p. 107. 



