433] STUDIES ON MY XOSPORIDI A— KUDO 195 



23(24) Cysts spherical up to 6 mm. in diameter; parasitic in ovary 



Henneguya oviperda (Cohn 1895) (^60) 



24(23) Cysts elongated up to 2 mm, by 1 .5 mm.; parasitic in branchia 



Henneguya psorospermica Thelohan 1895 (^58) 



25(22) Cysts rather small or size not observed 26 



26(27) Elongated cysts 0.75 mm. by 0.375 mm.; parasitic in branchia 



Henneguya texta (Cohn 1895) (159) 



27(26) Parasitic in intestinal wall 



Henneguya peri-intestinalis Cep^de 1906 (161) 



28(11) Tail composed of two processes 29 



29(30) Total length reaches 87.5 to 110. 5^; length of main part 10.5 to 15/x, breadth 

 5n, length of polar capsule 5/i, length of tail 75 to lOO/x 



Henneguya gigantea Nemeczek 1911 (168) 



30(29) Total length of spore less than S2/j. 31 



31(34) Sutural edge with markings 32 



32(33) Tail longer and spore larger; anterior end more rounded; total length 47 /i. Cysts 

 spherical and large, up to 6 mm. 



Henneguya salminicola Ward 1919 (171) 



33(32) Tail shorter and spore smaller; anterior end slightly more attenuated; total 

 length 32 ju. Cysts lenticular, up to 2 mm. in length 



Henneguya niisslini Schuberg et Schroder 1905 (166) 



34(31) Sutural edge without markings 35 



35(38) Distal end of tail thread-like 36 



36(37) Tail 40 to 50^ in length; total length 50 to 60^, main part 8 . 5 to 9 . 5/x long, 8 . 5 to 

 9.5m broad, polar capsule 4.7 to 5. 5m by ?>n. Cysts small, up to 50^ in 

 diameter 



Henneguya neapolitana Parisi 1912 (170) 



37(36) Tail 10 to 30/* in length; main part 12^ long, 8/x broad 



Henneguya miyairii Kudo 1919 (172) 



38(35) Distal end of tail tapers to a point and not thread-like 39 



39(40) Cysts irregular in shape; size up to 2.5 mm. Spore: total length 30 to 40/x, 

 main part 11.5 to 15^ long, 5 to 6.5^ broad, polar capsule 6.5 to 8/x by 2 to 

 2.5m, tail 22 to 28m 



Henneguya lobosa (Cohn 1895) (161) 



40(39) Cysts spherical or oval 41 



41(42) Anterior end of spore rounded; tail either single or double processes; total length 

 55m, length of main part 10m, breadth 7m, length of tail 40 to 50m. Cysts 

 spherical or oval up to 32 mm. by 16 mm. 



Henneguya zschokkei (Gurley 1893) (165) 



42(41) Anterior end attenuated; spore large; main part 20 to 22m long, breadth 8 to 

 9m, 6 to 7m thick, polar capsule 10m by 2 to ifi, tail 50 to 60m long 



Henneguya acerinae Schroder 1906 (167) 



Incompletely described species 



Henneguya schizura (Gurley 1893) (162) 



Henneguya linearis (Gurley 1893) (163) 



Henneguya gurleyi Kudo 1893 (163) 



Henneguya monura (Gurley 1893) (164) 



Henneguya strongylura (Gurley 1894) (163) 



Henneguya kolesnikovi (Gurley 1894) (164) 



Henneguya brevis Thelohan 1895 (162) 



Henneguya sp. (Gurley 1894) (165) 



Henneguya sp. (Gurley 1894) (165) 



Henneguya sp. Nemeczek 1911 (169) 



Numbers enclosed in parentheses refer to the page of the article on which is found the description of the species 

 named. 



