399] STUDIES ON MYXOSPORIDIA—KUDO 161 



Spore: Cohn states the form and dimensions are very much similar 

 to those of H. psorospermica. 



HENNEGUYA LOBOSA (Cohn) Labbe 



[Figs. 492 and 493] 



1895 Myxobolus lobosus Cohn 1895 : 42 

 1899 Henneguya psorospermica lo- 



bosa Labb6 1899 : 102 



1910 Hennegtiyai?) lobosa Wegener 1910 : 83 



1911 Hetmeguyai?) lobosa Auerbach 1911 : 22-25 



Habitat: Branchiae of Esox lucius L.; Frisches Haflf, Pregel, Karlsruhe. 



Vegetative form: Cysts irregular in shape, size up to 2.5mm. 



Wegener noticed that the cyst resembles that of Myxosoma dujardini 

 with the dimensions of 2.2 to 2.8mm. by 1 to 1.1mm. 



Spore: Cohn gives the dimensions as follows: total length 30 to 40m, 

 length from the tip to the posterior margin of cavity 11.5 to \Sn, breadth 

 5 to 6.5m, polar capsules 6.5 to 8m by 2 to 2.5m, length of tail 22 to 28m. 



Wegener's form: oval; length 35 to 40m, breadth 5m, polar capsule 6 to 

 7m by 2.5 to 2>ix, length of the cavity of spore 13 to 15m, length of tail 20 to 

 25m, the iodinophilous vacuole could not be detected. 



Auerbach gave the following dimensions: total length 30m, breadth 

 4 to 6m, length of polar capsule 6m, length of polar filament 48 to 54m. 



Remarks: Wegener and Auerbach did not observe the iodinophilous 

 vacuole. 



HENNEGUYA PERI-INTESTINALIS Cepede 



1906 Henneguya psorospermica peri- 



« intestinalis Cepede 1906 : 67 



1907 Henneguya psorospermica peri- 



intestinalis Cepede 1907 : 137 



1912 Henneguya psorospermica peri- 



intestinalis Parisi 1912 : 295 



Habitat: Intestine of Esox lucius L.; Lac du Bourget, Pavia. (June). 

 Vegetative form: Cysts. 



Spore: Cepede mentions that it resembles that of Henneguya psoro- 

 spermica. 



HENNEGUYA MEDIA Thelohan 

 [Figs. 494 and 495] 



1890 Thelohan 



1892 Henneguya media Thdlohan 



1894 Myxobolus medius Gurley 



1895 Henneguya media Thelohan 

 1898 Henneguya media Doflein 



Habitat: Renal tubules of kidney and ovary of Gasterosteus aculeatus 

 and G. pungitius L.; France. Mixed infection with Sphaerospora elegans. 



