120 



ILLINOIS BIOLOGICAL MONOGRAPHS 



[358 



Polar filament is wound along the longer diameter of the capsule, and 

 relatively thick, but thinner than that of 5. halbianii Thel. Dimensions: 

 length (along the inner side of the arch) 30 to 35ju, breadth S/x, distance 

 between two polar capsules 12 to 15/i, polar capsules 12 to 15;u by 4 to 5/u. 



SPHAEROMYXA SABRAZESI Laveran et Mesnil 

 [Figs. 315 and 322] 



Habitat: Gall-bladder of Hippocampus brevirostris Cuv., H. guttulatus 

 Cuv. ; Syngnathus acus, Motella tricirrata, Nerophis annulatus, Siphonos- 

 toma rondeletii; Arcachon, Rovigno, Napoli, Roscoff (September), Monaco, 

 Villef ranee, (March to June). 



Vegetative form: Disc form. Diameter up to 2mm. Thickness var- 

 iable. Body whitish in color. Ectoplasm thin, transparent and homo- 

 geneous. Young trophozoites may probably have lobose pseudopodia. 

 Endoplasm highly vacuolated, contains nuclei of various sizes, pansporo- 

 blasts, spores and more or less refringent granules. Polysporous. 



Schroder observed larger forms up to 5mm. Ectoplasm also was found 

 to project numerous fine short (Iju) hair-like processes from the surface. 

 Each pansporoblast develops into two spores. 



Spore: Cylindrical, bent in arch form; with truncated ends. Large 

 cylindrical polar capsule at each end. Sporoplasm granular, contains one 

 nucleus. Polar filament short and conical, is extruded under the action of 

 nitric acid. Dimensions: length 28^, width 4.3/x, polar capsule 9 to 10)tx 

 by Sn, distance between the polar capsules 8/i, length of polar filament 8/*. 



Schroder noticed the stained sporoplasm contained one or two nuclei. 

 He observed indistinctly marked longitudinal striations on the shell. 

 Dimensions: length 22 to 25/i, breadth 3 to 4ju, polar capsule 8m by 2 to 3n, 

 length of polar filament about 12/i. 



Georgevitch described the presence of a hyaline substance, containing 

 pale granules, in the spore cavity. Young spores were found to take the 

 form of Myxidium type. In mature spores, he always found two nuclei by 

 staining. 



*Misprinted in Schroder's paper. 



