112 JLUNOJS BIOLOGICAL MONOGRAPHS [350 



Spore: Very broad compared with the length. The longitudinal axis 

 is curved in S shape. Polar capsule situated in opposite way at each end 

 of the spore. Dimensions: length 20.8 to 23.4pi, breadth 13 to 15.6/i, 

 polar capsules 7.8^, length of polar filament 90 to lOOjit (KOH). 



MYXIDIUM BERGENSE Auerbach 

 [Fig. 267] 



1908 

 1909 

 1910 

 1910 

 1912 

 1915 



Habitat: 



Pleuronectes platessa and Sehastes viviparus, Melanogrammus aeglefinis; 

 Norway (Bergen), Canada (St. Andrew, July to September). 



Vegetative form: Rounded or elongated, as the result of formation of 

 various pseudopodia. Trophozoites partly free, partly attached to the 

 epithelium of the bladder. Size up to 54/x in diameter. Pseudopodia of 

 two kinds: lobose and long filose, sometimes slightly branched. Mavor 

 observed a cyst-like stage under certain conditions, which, he thinks, may 

 be due to some exceptional conditions of the parasite. Plasmogamy. 

 Monosporous, disporous and polysporous. 



Spore: Fusiform. Main axis curved into S shape. Form, roughly 

 speaking, very much similar to that of M. sphaericum Thel. Dimensions: 

 length 16.2 to IQjli, breadth 7 to 9n, length of polar capsules 5An, length 

 of polar filament about three times as that of spore. 



MYXIDIUM PROCERUM Auerbach 

 [Fig. 268] 

 1910 Myxidium procerum Auerbach 1910 : 61-62 



1910 Myxidium procerum Auerbach 1910c : 172-173 



1912 Myxidium procerum Auerbach 1912 : 4, 39 



Habitat: Gall-bladder of Argentina situs As.; Bergen. 



Vegetative form: Not observed. 



Spore: Greatly elongated and narrow. Sporoplasm with one or two 

 nuclei. Dimensions: length 21.6 to 25.2/i, breadth 3.6 to 4/x, length of 

 polar capsule 7.2/1. 



MYXIDIUM MACKIEI Bosanquet 



[Figs. 269 to 271] 



1910 Myxidium mackiei Bosanquet 1910 : 436-438 



Habitat: Renal tubules of kidney of Trionyx ganzeticus; Bombay. 

 Observations on three slides. 



