300 REPORT OF THE COMMISSIONER OF FISH AND FISHERIES. 



Plate 32. 



Figs. 1, 2. Afurohohts creplini. 



\a-e. (Aft*T Creplin. X 1.) 



la, h. Vertical view ofsiiorcs. 



Ic. Transverse view. 



Irf. Vertical view (of an illusory appcinanco? Sec p. 249). The larger size of 

 this figure merely re])rcseiits hi;;inT magnification. 



If. Transverse view of spore with the valves gaping anteriorly. 



2. Vertical view of spore (after Lenckart. X 1). 

 Figs. 3, 4. Myxoholus monnrus (after Ryder. X 3). 



3a. AphrifdoderiiH Kni/aiius with tumors. 



3/;. Cyst, much cnhirgcd. 



3c. Vertical views of 2 spores, showing capsules and tails. 



Ab-d. * Vertical views of spores. 

 Fig. 5. Mijxobohis macriirus (original). Vertical view of spore, showing capsules, 

 sporoplasm with vacuole and 3 nuclei (2 the pcricoruual), and the full length 

 of the tail (about 4 times that of the body). 



Plate 33. 



Figs. 1-4. ^f!|.^'ohohis ma(^riinis (original). 



1. Transverse view showing, on the riuht side, the more convex superior valve 



and the greater anterior projection of the supero-raedian coruu; on the left, 

 tlie less convex inferior valve; along tlie center, the narrow ridge. 



2. Vertical view, showing the vacuole «nd nuclei. 



3. The same, sliowing aiso the beading of tlie tail after the action of iodine. 



4. A tail separated from the body by iodine. 

 Figs. .5-8. Myxobnius cf. linearis (original). 



5. Vertical view, showing divergence of valves under action of sulphuric acid, 



and the tail separating into a 8U])erior and an inferior half. 



6. Transverse view, showing snpero-inferior synnnotry and narrow ridge. 



7. Vertical view of unstained spore, showing vacuole. 



Sa-d. Vertical views of spores, showing vacuole, nuclei, and flexibility of tail. 

 Hydrochloric acid alcohol carmine. 



Platic 34 



Figs. 1-4. Mi/xobolus psorospermicus. 



1. From branch ia) of Perca fluviatilis (after Lieherkiihn in Biitschli. X f). 



X about 97.5. 

 la. Vertical view of spore with a simple tail. 

 lb. Transverse view of same. 

 Ic. Vertical view of spore with a double tail. 

 2a-c. From a branchial cyst of P. flitriatilin, showing capsules, sporo])]asm, 



A'^acuolo, and nuclei, a, with 1 nucleus; b, with 2 nuclei; c, with 3 nuclei. 



Carmine and gentian violet (after Thelohan. X 1). 

 3a-df. Spores from i'erca_^M)na<i?is (after Balbiani. X i). 

 3a. Vertical view. 



3&. Transverse view of spore with 2 tails. 

 3c. Form slightly abnormal. 

 3d. Vertical view of spore, showing capsule with filaments extrudea, coruua o. 



sporoplasm, and pericornual nuclei. 

 4. Spores from Lucius lucius (after Balbiani. X f ). 

 4a. Vertical view. 

 4&. Transverse view. 



4c. Spore with valves separating to permit exit of s]»oro])lasm 

 id. Vertical view showing filaments extruded, and coruua of sporoplasm. 



Plate 35. 



Figs. 1-7. MiixoboJus kolesnikori (after KolesnikofF), 

 ' 1-6. Cysts (X 1). 

 7a-o. Spores showing extruded filaments and single .and double tails (X |). 

 7g. Separated cai)sule with extruded hlamcut. 



* No a to this figure. 



