319] STUDIES ON MYXOSPORIDIA—KUDO 81 



granular, chiefly located in one valve, extending into the other only a short 

 distance beyond the capsule. Dimensions: breadth 80/*, breadth of 

 enlarged central portion IS^t, sutural diameter 7/*, diameter of polar cap- 

 sules 4)Lt. 



Genus MYXOPROTEUS Doflein emend. Davis 



1898 Myxoproteus Doflein 1898 : 287 



1917 Myxoproteus Davis 1917 : 219 



The characters of the genus are described on page 56. 

 Type species: Myxoproteus ambiguus (Thelohan) Doflein. 



MYXOPROTEUS AMBIGUUS (Thelohan) Doflein 

 [Figs. 75 to 80] 



1895 Myxosoma atnbiguum Th61ohan 1895 : 344 



1898 Myxoproteus ambiguus Doflein 1898 : 287-288 



Habitat: Urinary bladder of Lophius piscatorius; Le Croisic, Rovigno, 

 Napoli. 



Vegetative form: Polymorphous. Color milky white. Protoplasm is 

 filled with numerous granules and fat globules. Pseudopodia, short, 

 pointed lobose. Plasmogamy and plasmotomy take place. Many small 

 individuals formed apparently by plasmotomy, often, make up groups. 

 Disporous, polysporous? 



Spore: Almost pyramidal, with anterior processes. Two very large 

 polar capsules at the anterior end. The distance between these capsules 

 is equal to or greater than the diameter of the capsules. Sporoplasm with 

 two nuclei. Dimensions: length 25/i, breadth 18 to 20/x, diameter of polar 

 capsules 7/i. 



MYXOPROTEUS CORDIFORMIS Davis 



[Figs. 81 to 83] 



1917 Myxoproteus cordiformis Davis 1917 : 231 



Habitat: Urinary bladder of Chaetodipterus faber; Beaufort (June, 

 July). 



Vegetative form: Rounded; very slowly ameboid, usually forming a 

 single, short, lobose pseudopodium. Body colorless and transparent. 

 Ectoplasm not distinct. Entire trophozoite finely granular, with a few 

 fat globules. Rarely vacuolar. Small trophozoites often show a single 

 large, central vacuole. Rounded sporulating trophozoites 18/t in diameter. 

 Disporous. 



