82 ILLINOIS BIOLOGICAL MONOGRAPHS [320 



Spore: Heart-shaped in front view, with peculiar wing-like expansions 

 on each side which contain remains of parietal cells. Sutural plane oblique 

 in position. Capsulogenous cells distinct. Sporoplasm finely granular, 

 fills the extracapsular cavity of the spore. Dimensions: length \2n, 

 breadth 10 to ll/x, thickness 6/1, polar capsules 3 to 4/i in diameter. 



MYXOPROTEUS CORNUTUS Davis 

 [Fig. 84] 



1917 Myxoproteus corntdus Davis 1917 : 231 



Habitat: Urinary bladder of Bairdiella chrysura; Beaufort. 



Vegetative form: Somewhat elongated or irregular in shape, with 

 short lobose pseudopodia; slowly ameboid. Differentiation of protoplasm 

 clear. Ectoplasm well developed, hyaline; in rounded individuals forming 

 a distinct layer around the body. Endoplasm opaque, contains coarse 

 refringent granules varying in shape, and a few fat globules. In contracted 

 rounded resting condition, endoplasm becomes condensed, while ectoplasm 

 appears more abundant. Rounded trophozoites up to 27^ in diameter. 

 Disporous. 



Spore: Heart-shaped, with two anterior processes. Shell very thick. 

 Polar capsules large, opening some distance apart. Coiled polar filament 

 distinct. Sporoplasm finely granular, with a few small fat globules, fills 

 the extracapsular cavity of the spore. Dimensions: sutural diameter 

 exclusive of the processes 9/u, breadth 12)u, length of processes 5n, diameter 

 of polar capsules 3^1. 



Genus WARDIA nov. gen. 



The characters of the genus are described on page 56. 

 Type species: Wardia ovinocua nov. spec. 



WARDIA OVINOCUA nov. spec. 



[Figs. 85 to 95] 



Habitat: Ovum and connective tissue of ovary of Lepomis humilis 

 Girard;* Salt Fork, 111. (November). Only one fish, 6.5 cm. long with 

 normal appearance, was found to be infected. 



Vegetative form: Trophozoites form cysts visible to the naked eyes 

 as white spherical spots in the pink-colored ovary. Four cysts present. 

 The cyst (Figs. 85 and 86), in section, shows a circular form surrounded by 

 several layers of hypertrophied nurse cells and connective tissue, in which 

 many large blood vessels are present. Protoplasm is not clearly differ- 



*Professor F. Smith of the Department kindly identified all the fish that were collected 

 in the vicinity of Urbana and mentioned in this paper as hosts, for which the writer wishes to 

 express his appreciation. 



