302 REPORT OF THE COMMISSIONER OF FISH AND FISHERIES. 



Plate 40. 



Fig. 1 a-c. Chloromyxum elegans (original enlargement from plate 31, fig. 2. X 



about 3). Three views of spores, showing outline, ridge, and capsules. 

 Fig. 2a-b. Chloromyxum perlatmn (after Bsblhiaui. X I). Vertical views of spores 



showing outline, capsules (b with filaments extruded), and vertical position 



of ridge. 

 Fig. 3. Chloromi/xum sp. 91. Vertical (?) vioAv of spore from the ovary of Lota Join 



(after Biitschli. X f ). X about 900. 

 Figs. 4-7. Chloromyxum dujardini. 



4. From Leuciscus rutilus (after Miiller. xl). 

 46. Vertical views. 



ic. Transverse views. 



5. Myxosporidium from branchise of Leuciscus erythrophthalmtis (after Dujardin. 



Xi). X 12. 



6. Spore showing outline and capsules; from L. crythrophthalmus (after Dujar- 



din. X 1). X 800. 



7. Free amoeboid myxosporidium from a branchial lamella of Leuciscus erythroph- 



thalmus (after Biitschli X f). X about 30. 

 Fig. 8. Chloromyxum ohlmacheri (after Ohlraacher, Leitz obj. 3, oc. 4. X 1). From 

 photomicrograph of section of kidney ; showing at a, and elsewhere, rayxo- 

 sporidiau masses in the tubules; at b extravasated blood corpuscles; at c a 

 large blood vessel filled with blood corpuscles. Fuchsiu and iodine green. 



Plate 41. 



Figs. 1-3. Chloromyxum ohlmacheri. 



1. Spores (after Ohlmacher. Leitz pantachromatic oil imm. 2 mm., oc. 4. X 1). 

 la. Vertical view of spore, showing capsules with extruded filaments. Camera 



lucida ; Babes's anilin water safranin. 

 16. Vertical view showing capsules, spiral-coil structure of shell, and vertical 



position of ridge. 

 Ic. Striae are seen "running nearly meridionally "; at one "side" of spore a 



capsule "appears in the act of escaping through a rent" in the shell. 

 Id. Fragment of shell in which the striae appear to correspond to ridges 



encircling the shell. 



2. Kidney tubule, inclosing 3 spores, showing capsules and sporoplasm, the lat- 



ter structure being represented in 1 spore as divided into 2 lateral halves. 

 (An error; see p. 270.) Pfitzner's alcoholic safranin (after Ohlmacher; 

 camera lucida; Leitz pantachromatic 3 mm., oc. 4. xl). 



3. Diagrammatic figure of spore; a, shell; b, sporoplasm; c, capsule; d, posterior 



extremity of ridge and spore; e, ridge; /, anterior extremity of ridge and 

 spore; g, filaments, much shortened; a, b, c, are on the lett side of spore; 

 e on the right. (After Whinery. X 1). 

 Fig. 4. Ceratomyxa sphcerulosa. Spore showing hollow-cone valves, vertical ridge, 

 and valve-junction plane, capsules, and (spo.) the uuihiteral sporoj)lasm, 

 and {x) pale corpuscles of indeterminate nature (after Thelohan. X f). 



Plate 42. 



Figs. 1-10. Cysfodiscns immrrsits (after Lutz. X 1). 



1. Gall bladder of Bufo anna with myxosporidium disks shining through. X 1. 



2. Portion of medium-sized specimen with large number of spores. X about 70. 



3. The same; the ruptured ectoplasm permitting the exit of the contents in the 



form of vesicles. X about 70. 



4. Ripe spore-pairs. 



5. Vertical (?) view of mature spores, showing ridge. 



6. Longitudinal (?) view of same. 



7. Spore with extruded filaments, showing the striie of the shell. 



8. Spore with valves separated. 



9. Developmenl^il condition of spore. 



10. Mature spore; contents made plain by carmine; containing micrococcoid 

 granules. X about 600. 

 Figs. 11-13. Cysfodiscns ?? diploxys (after Balbiani). 



11, 12. Spherical cysts in process of spore formation (X 1). X 85. 



13. Spores from the cysts (X f). X about 1500. 



13a. Vertical view. 



136, c. Transverse views. 



