CR YP TO MONAD ID A 



93 



Suborder 1 Eucryptomonadina Pascher 



Anterior end truncate; two anterior flagella; with an oblique furrow 



near anterior end Family 1 Cryptomonadidae 



Reniform; with two lateral flagella; furrow equatorial 



Family 2 Nephroselmidae 



Family 1 Cryptomonadidae Stein 



Genus Cryptomonas Ehrenberg. Body elliptical with a firm 

 pellicle. Anterior end truncate. Longitudinal furrow large, 

 extending to the middle of the body, through which two equally 

 long flagella arise. Two lateral chromatophores vary in color 

 from green to blue green, brown, or rarely red. Holophytic; 

 paramylum bodies. Fresh and salt waters. 



©®^% 



Fig. 32 a. Cryptomonas ovata. X500 (After Doflein, modified), 

 b, c. Chrysidella schaudinni. X 1000 (After Winter). 



d. Chilomonas Paramecium. X500 (After Doflein, modified). 



e. Cyathomonas truncata. X500 (After Doflein, modified). 



f. Cryptochrysis commuta. X500 (After Pascher). 



g. Protochrysis phaeophycearum. X600 (After Pascher). 

 h. Nephroselmis olivacea. X500 (After Pascher). 



i,j. Phaeothamnion confervicolum. X450 (After Kiihn). 



Cryptomonas ovata Ehrenberg (Fig. 32, a). Length about 

 30 to 40 microns. Widely distributed among vegetation in 

 fresh water. 



Genus Chrysidella Pascher. Somewhat similar to Cryp- 

 tomonas, but much smaller. Chromatophores much shorter. 

 Those occurring in Foraminifera or Radiolaria as symbionts 

 are known as Zooxanthellae. Several species. 



Chrysidella schaudinni (Winter) (Fig. 32, b, c). Body less 



