ABSTRACT AND REVIEW. 91 



bably xanthopliyll, is present in conjunction with the chloro- 

 phyll ; the distribution of the latter is irregular, but occasionally 

 definite corpuscles, the primitive form of the chloroplastids of 

 the higher plants, occur. The red colouring matter he believes 

 to be derived from the green ; it is found sometimes in minute 

 drops between the consecutive layers of the cellulose cyst. 



As processes of reproduction he mentions fission, budding, 

 free cell formation, and rejuvenescence. Lastly, he believes the 

 organism to occupy the same position relatively to the lower 

 Algse as do the Myxomycetes to the lower Fungi. 



d. Askenasy (2) has criticised these statements, suggesting 

 that the organism described by Geddes was not Chlamy- 

 domyxa at all, the latter being, he supposes, really related to 

 the Rhizopoda. 



e. Biitschli (3) places Labyrinthula among the colonial 

 Rhizopoda (Mikrogromia, etc.), but considers it doubtful 

 whether Chlamydomyxa is really related to it, the ^' spindles^' 

 of the two not being homologous. 



/. It is highly probable that Janisch (7) really observed 

 Chlamydomyxa in 1859, mistaking it for Pleurostaurum or 

 Cocconema. 



\jg. Hieronymus has apparently not seen Lankester's (9) 

 account of Chlamydomyxa mo n tan a. Tliis was seen in the 

 streaming condition, and later on encysted. No ingestion of 

 food particles was observed. The figure given 1. c. is quite 

 like that of Hieronymus copied here. Laukester expresses 

 the opinion that the threads are pre-formed and comparable 

 with the axis of the Heliozoan pseudopodium ; he believes they 

 are covered by a layer of invisible hyaloplasm, the streaming 

 of which was the cause of the motion of the '' oat-shaped cor- 

 puscles" (" spindles "). 



In the encysted condition crimson oil-drops were observed, 

 and the division of the protoplasmic body inside the cyst into 

 several portions. He observed no nuclei. — J. W. J.] 



