431] STUDIES ON MYXOSPORIDIA—KUDO 193 



89(86) Sutural edge without markings 90 



90(99) Anterior end of spore highly attenuated 91 



91(96) Length of polar capsule equal to or less than half of that of spore 92 



92(93) Spore: anterior end pointed; length 12.4 to 13.5m, breadth 6.5 to 7.5/tt, thick- 

 ness 5jix, polar capsule 6 to 7/i long. Cysts of bright golden color 



Myxobolus aureatus Ward 1919 (JS4) 



93(22) Anterior tip of spore not pointed 94 



94(95) Spore greater in thickness (6 . 5 to 7)u) , length 12 to 13 ft, breadth 8 . 25 to 9/*, polar 

 capsule 6/i by 2.Sm; anterior end more rounded 



Myxobolus physophilus Reuss 1906 (1^) 



95(94) Spore smaller in thickness (5.5/ti), length 11 to 13^, breadth 8.25 to9.25A», polar 

 capsule 6/i by 2 . 5 to 3m; anterior end less rounded 



Myxobolus macrocapsularis Reuss 1906 (146) 



96(91) Length of polar capsule greater than half of that of spore 97 



97(98) Length of polar capsule greater than two-thirds of that of spore; spore 16^ long, 

 10 to 11m broad, polar capsule 11m by 4m 



Myxobolus capsulalus Davis 1917 (i52) 



98(97) Length of polar capsule less than two-thirds of that of spore; spore 14 to 16m long, 

 8 to 9m broad, 5 to 6m thick, polar capsule 8 to 9m by 2 . 5 to 3 m 



Myxobolus koi Kudo 1919 (155) 



99(90) Anterior end of spore rounded 100 



100(101) Cysts: size up to 1.7 mm. by 0.7 mm.; parasitic in various tissues of host. 

 Spore 10 to 12m long, 9m broad 



Myxobolus oviformis Th6lohan 1892 (137) 



101(100) Cysts: 0.9 mm. by 0.02 mm.; parasitic in nervous system. Spore 10 to 12m 

 long, 8m broad, 6m thick, polar capsule 6 to 7m by 2m 



Myxobolus neurobius Schuberg et Schroder 1905 (144) 



102(31) Spore almost circular in front view 103 



103(104) Anterior end somewhat attenuated; sutural edge with four markings; spore 9 

 to 10m long and broad, 6.5 to 7m thick, polar capsule 6 to 7.5m by 2.5 to 3m 



Myxobolus orbicuiatus Kudo 1919 (1S5) 



104(103) Spore regularly circular in front view lOS 



105(106) Cysts large, up to 3 mm. by 1 .5 mm. Spore 10m long, 9.8m broad, 3m thick, 

 polar capsule 3.8 to 5m long 



Myxobolus roiundus Nemeczek 1911 (149) 



106(105) Cysts small, up to 0.33 mm. in diameter. Spore 9m in diameter 



Myxobolus sphaeralis Gurley 1893 (141) 



Incompletely described species 



Myxobolus sp. Guriey 1894 (142) 



Myxobolus sp. Guriey 1894 , (142) 



Myxobolus sp. Guriey 1894 (143) 



Myxobolus sp. Miyairi 1909 (149) 



Myxobolus sp. Wegener 1^10 (149) 



Myxobolus sp. Lebzelter 1912 (150) 



Myxobolus sp. Southwell 1915 (1^1) 



Myxobolus sp. Kudo 1918 • (132) 



Genus HENNEGUYA Th61ohan 1892 



1(10) Parasitic in urinary bladder or urinary tubule of kidney of host 2 



2( 7) Shell-valves striated 3 



Ntunbers enclosed ir pa rentheses refer to the page of the article on which is found the description of the species 

 named. 



