THE MYXOSPOKIDIA, OR PSOROSPERMS OF FISHES. 301 



Plate 36. 



Fig. 1. Mjiroholus schizurns (after Miiller. X 1). 



la. Showing cyst contents, consisting of spores and finely granular 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. Miixobolus linearis. Group of spores showing the narrow outline and the 



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

 Fig. 3. Mi/xoholns sp. 61. Rare forms of spores reproduced among tailed forms, 



■from plate 28, fig. 6. 

 Fig. 4. lli/soholun dipliiriia (after Lieberkiihn in Biitschli. X f). X about 1050. 

 Vertical view showing posterior position of capsules and double tail. 



Plate 37. 



Fig. 1 a-f. Chloromyrum incisum (after Leydi«r. X 1). 



1«. Myxosporidium without pansporoblasts. 



lb. Same with 1 pansporoblast, but no spores. 



Ic, d. Same with sporoblasts. 



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

 Fig. 2-7. ChloromyxKin leydigii {after Pevngia. X 1). 



2. The myxosporidium. 



3. The same, containing numerous spores. 



4. The same, giving exit to 3 monosporopborous 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. Chloromyrum leydiyii (after Leydig. X f). 

 1. From gall bladder of haja bails. 



Irt;, «;. M\ xosporidia of various sizes without pansporoblasts. 

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



formation; also outline of spore. 

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

 2a-c. From gall hVAAdeA- of SquaUis uianthias. Myxosporidia without X)anspyro- 



blasts. 



Plate 39. 



Figs. 1-3. Chloromyxuvi leydigii. 



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



la. Without pansporoblasts. 



lb. With pansporoblasts and spores. 



Ic. With pansporoblast and sporoblast. 



2a-Z>. Myxosporidia from gall bladder of Scylliorhhius sanicitla (after Leydig. 



xi). 



2ai, O.J. Myxosporidia without pansporoblasts. 



2b. Myxosporidium with 12 pansporoblasts, each contaiTiing 1 spore. 



3. Myxosporidium. This ligure appears to be generalized from figures ai, a^, of 



the preceding (after Leuckart. Xl). 

 Fig. 4. Chloromyxum fluviatile (after Thelohan. X ?). Vertical view showing the 



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



position of the ridge, and the minute spines on the shell. 

 Figs. 5,6. Chloromyxum inucrotiatiim. 



~)a, b. From urinary l)la(l(ler of Lota lota (after Lieberkiihn. X i). 



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



5b. Vertical view showing the mucronate anterior extremity, capsules, and 



8poroi)lasm. 



6. From J.ola lota (after Halbiani. X §). 



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



the ridge. 

 6b. The same; also beginning of valve separation. 

 6o. The same : also corkscrew extrusion of lilameuta. 



