THE MYXOSPORIDIA, OR PSOROSPERMS OF FISHES. 141 



Tabular hey. 



Seat. 



septum. 



Body cavity ; digest- 

 ive tube. 



Air bladder - 



Pathologic 

 effect. 



Blood - 



Interstices of mus- 

 cles. 



Body cavity, abdo- 

 men, tliorax, tail, 

 natatory feet,flrst 

 autennaB. 



Branchiae ; ? also of 

 heart blood. 



Branchias . 



Gall bladder . 



Branchiit 



Gall bladder . 



Subcutaneous 

 s«.e. 



Subcutaneous 

 sue. 



tis- 



A trophy of tail 

 muscles. 



Remarks. 



Spore leathery, con- 

 tents granular, 

 colorless, amber 

 or fuscous yellow, 

 forming indefinite 

 cylindrical, fila- 

 mentous or spiral 

 colonies; rarely 

 isolated. 



A perfectly typical 

 monocystid Greg- 

 arine. Gregarine 

 stage passed usu- 

 ally in digestive 

 tube. Spores con- 

 tain 8 falciform 

 corpuscles. 



Pathologic mass 

 whitish- yellow, 

 pasty, drawing 

 o n t into dirty 

 white threads. 



Genus incert. 



Spore containing a 

 central globule 

 ("nucletis") 7 to 

 11 /u. in diameter, 

 surrounded by 

 several fine gran- 

 ules. 

 ' " Myxosporidium ; " name not in good standing, see p. 206. 



G Mus. 



Psorospermia.. 



Lithocystis. 



Genus incert . . 



.do, 



Balbiania 



Genus incert 



Genus incert. . . 



.do. 



-do, 

 .do , 

 do, 



-do^ 



Species. 



scisenaB-umhrsB . 



schneideri . 



sp. incert . 



sp. incert 



rileyi 



sp. incei't 



sp. incert . 



sp. incert . 



sp. incert 

 sp. incert 

 congri ... 



sp. incert 

 sp. incert 



13 



