4011 STUDIES ON MYXOSPORJDJA—KUDO 163 



Remarks: Wegener thinks that the present species and Henneguya 

 acerinae Schroder, are one and the same species, and that the differences 

 between the dimensions are due to the miscalculation of measurement in 

 lines given by Creplin on the part of Gurley and Labbe. 



HENNEGUYA LINEARIS (Gurley) Labbe 

 [Fig. 504] 



1841 MuUer 1841 : 489 



1893 Myxobolus linearis (part) Gurley 1893 : 417 



1894 Myxobolus linearis Gurley 1894 : 255 

 1899 Henneguya linearis Labb6 1899 : 103 



Habitat: Membrane lining branchial cavity of Pimelodus sebae Cuv. 

 et Val., branchiae of Platystoma fasciatum L.; South American rivers. 

 Vegetative form: Not described. 

 Spore: Very narrow. Length 3 to 4 times breadth. 



HENNEGUYA GURLEYI Kudo 



[Fig. 505] 



1893 Myxobolus linearis ipaxt) Gurley 1893:417 



1894 Myxobolus ci. linearis Gurley 1894:253-254 

 1899 Henneguya linearis v&T. Labb6 1899 : 103 



Habitat: Base of spines of the second dorsal fin of Ameiurus melas 

 Raf.; Iowa (Storm Lake) (August). 



Vegetative form: Spherical cysts, 1mm. in diameter. 



Spore: Lanceolate. Dimensions: length of the body 19/i, width 

 5 to 6/i, thickness about 3)it. 



Remarks: The species is most probably different from Henneguya 

 linearis judging from the difference in the form and structure of spores, 

 the seat of infection, and host species. Hence, it is recorded here as an 

 independent species. 



HENNEGUYA STRONGYLURA (Gurley) Labb6 

 [Fig. 506] 

 1841 MuUer 1841 : 480 



1894 Myxobolus strongylurus Gurley 1894:249 



1899 Henneguya strongylura Labb6 1899:103 



Habitat: Skin of cephalic region of Synodontis schall Bl. Schn.; Nile. 

 Vegetative form: Cysts over 2.18mm. in diameter. 

 Spore: Dimensions: length of the body 9/i, breadth 5.4/1. Tail always 

 undivided. Two polar capsules of equal size. 



