399\ STUDIES ON MYXOSPORJDIA—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 Henneguyai?) lobosa Wegener 1910 : 83 



1911 Henneguyai?) lobosa Auerbach 1911 : 22-25 



Habitat: Branchiae of Esox lucius L.; Frisches Hafif, 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 40/i, 

 length from the tip to the posterior margin of cavity 11.5 to 15/i, breadth 

 5 to 6.5m, polar capsules 6.5 to Sfi by 2 to 2.5/x, length of tail 22 to ISfi. 



Wegener's form: oval; length 35 to 40^1, breadth Sfi, polar capsule 6 to 

 7n by 2.5 to 3n, length of the cavity of spore 13 to 15^, length of tail 20 to 

 25/i, the iodinophilous vacuole could not be detected. 



Auerbach gave the following dimensions: total length 30/*, breadth 

 4 to 6n, length of polar capsule 6n, length of polar filament 48 to 54/u. 



Remarks: Wegener and Auerbach did not observe the iodinophilous 

 vacuole. 



HENNEGUYA PERI-INTESTINALIS Cepede 



1906 Henneguya psorospermica peri- 



intestinalis Cfipfide 1906 : 67 



1907 Henneguya psorospermica peri- 



intesiinalis C^de 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 1890 : 198-200 



1892 Henneguya media Thdohan 1892 : 177 



1894 Myxobolus medius Gurley 1894 : 248 



1895 Henneguya media Thglohan 1895:353 

 1898 Henneguya media Doflein 1898 : 342 



Habitat: Renal tubules of kidney and ovary of Gasterosieus aculeatus 

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



