THE MYXOSPORIDIA, OR PSOROSPERMS OF FISHES. 301 



Plate 36. 



Fig. 1. M)ixoholus schizurus (after Miiller. X 1). 



la. Showing cyst contents, consisting of spores and finely grannlar matter. 

 lb. Individual spores. 



Ic. Aberrant spores seen only once among the contents of a cyst. 

 Id. Group of spores; vertical and transverse views. 

 "Fig. 2. Myxoholus linearis. Group of spores shoT?ing the narrow outline and the 



single and double tails (after Miiller. X 1). 

 Fig. 3. Mj/xobolus sp. 61. Rare forms of spores reproduced among tailed forms, 



from plate 28, fig. 6. 

 Fig. 4. Myxoholus diplarus (after Lieberlciihn in Biltschli. X i). X about 1050. 

 Vertical view showing posterior position of capsules and double tail. 



Plate 37. 



Fig. 1 a-/. Chloromyxuminoisum {2iitBT'L&jA.\g. X 1). 



la. Myxosporidium without pansporoblasts. 



16. Same with 1 pansporoblast, but no spores. 



Ic, d. Same with sporoblasts. 



le, /. Same with fully developed spores showing the crenate posterior border. 

 Fig. 2-7. Chloromyxum leydigii (after Perugia. X 1). 



2. The myxosporidium. 



3. The same, containing numerous spores. 



4. The same, giving exit to 3 monosporophorous pansporoblasts. 



5. 6. Pansporoblasts with spores; in fig. 5 the spores with 4 capsules. 

 7. Spore giving exit to the sporoplasm. 



Plate 38. 



Figs. 1, 2. Chloromyxum leydigii (after Leydig. X I). 

 1. From gall bladder of Eaja baiis. 



l«i, az. Myxosporidia of viirious sizes without pansporoblasts. 

 lb, e. Myxosporidia, showing (b) pansporoblasts and various stages in spore 



formation ; also outline of spore. 

 1/. Longitudinal ("end") view of spore, showing the 4 capsules. 

 2a-c. From gall bladder of ^S^wa^Ms ocaui/uas. Myxosporidia without pausx^oro- 

 blasts. 



Plate 39. 



Figs. 1-3. Chloromyxvm leydigii. 



1. Myxosporidia from gall bladder of Torpedo torpedo (after Leydig. X f ). 



la. Without pansporoblasts. 



16. With pansporoblasts and spores. 



Ic. With pansijoroblast and sporoblast. 



2a-6. Myxosporidia from gall bladder of ScylUorhinus sanicala (after Leydig. 



xi). 



2ai, a^i. Myxosporidia without pansporoblasts. 



26. Myxos|ioridium with 12 pansporoblasts, each containing 1 spore. 



3. Myxosporidium. This figure appears to be generalized irom figures ai, an, of 



the preceding (after Leuckart. xl). 

 Fig. 4. Chloromyxum flutiatile (after Thelohan. X f ). Vertical view showing the 



capsules in 2 lateral pairs, the nonvacuolate sporoplasm, the vertical 



position of the ridge, and the minute sj^iues on the shell. 

 Figs. .5, 6. Chloromyxum mucronatmn. 



5a, 6. From urinary bladder of Lota lota (after Lieberkiihn. X f ). 



5a. Longitudinal view of spore, showing the 4 capsules. 



56. Vertical view showing the mucronate anterior extremity, capsules, and 



sporoplasm. 

 6. From Lota lota (after Balbiani. X i). 

 6a. Vertical view showing capsules, pericornual nuclei, and vertical position of 



the ridge. 

 66. The same; also beginning of valve separation. 

 6c. The same; aLso corkscrew extrusion of tilameuts. 



