BRANCH PROTOZOA 



Fig. 3. — Organisms very abundantly found in common sea-water that 

 has stood a few days in an open shallow dish: a, Acineta with embryo 

 budding off; b, resting spores of alga, with bacteria; c, Chilodon; d, small 

 Navicula; c, Cocconeis; /, larger species of A^ovicula; g, heliozoan, with 

 two entrapped infusoria; h, germinating alga cells; /, small colony of bac- 

 teria in zooglea stage with small flagellate infusoria near by; k, flagellate 

 infusorian; m, infusorian Mesodinium; n, ciliate infusorian; v, Vorticella, 

 with small portion of its stalk. (Bull. U. S. F. C, 1895.) 



