104] 



The Classification of Lower Organisms 



Fig. 19, — a, Tetradinium javanicum x 1,000 after Thompson (1949). b, Gytnno- 

 dinium striatum x 500 after Kofoid & Swezy (1921). C, Gymnodiniian Lunula, 

 flagellate cells forming in a cyst x 500, after Kofoid & Swezy op. cit. d, e, f, Din- 

 amoehidium varians; amoeboid vegetative cell, cyst, and production of gymnodinioid 

 zoospores x 1,000 after Pascher (1916). g, Noctiluca scintillans x 100 after Allman 

 (1872). h, Peridinium cinctum x 1,000. i, Triposolcnia Ambulatrix x 500 after 

 Kofoid (1907). j, Amphisolcnia laticincta after Kofoid, op. cit. 



